81_FR_7441 81 FR 7413 - Listing Endangered and Threatened Species and Designating Critical Habitat; Implementing Changes to the Regulations for Designating Critical Habitat

81 FR 7413 - Listing Endangered and Threatened Species and Designating Critical Habitat; Implementing Changes to the Regulations for Designating Critical Habitat

DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
DEPARTMENT OF COMMERCE
National Marine Fisheries Service

Federal Register Volume 81, Issue 28 (February 11, 2016)

Page Range7413-7440
FR Document2016-02680

We, the U.S. Fish and Wildlife Service (FWS) and the National Marine Fisheries Service (NMFS) (collectively referred to as the ``Services'' or ``we''), amend portions of our regulations that implement the Endangered Species Act of 1973, as amended (Act). The revised regulations clarify, interpret, and implement portions of the Act concerning the procedures and criteria used for adding species to the Lists of Endangered and Threatened Wildlife and Plants and designating and revising critical habitat. Specifically, the amendments make minor edits to the scope and purpose, add and remove some definitions, and clarify the criteria and procedures for designating critical habitat. These amendments are based on the Services' review of the regulations and are intended to clarify expectations regarding critical habitat and provide for a more predictable and transparent critical habitat designation process. Finally, the amendments are also part of the Services' response to Executive Order 13563 (January 18, 2011), which directs agencies to review their existing regulations and, among other things, modify or streamline them in accordance with what has been learned.

Federal Register, Volume 81 Issue 28 (Thursday, February 11, 2016)
[Federal Register Volume 81, Number 28 (Thursday, February 11, 2016)]
[Rules and Regulations]
[Pages 7413-7440]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-02680]



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Vol. 81

Thursday,

No. 28

February 11, 2016

Part II





Department of the Interior





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 National Marine Fisheries Service





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50 CFR Part 424





Listing Endangered and Threatened Species and Designating Critical 
Habitat; Implementing Changes to the Regulations for Designating 
Critical Habitat; Final Rule

Federal Register / Vol. 81 , No. 28 / Thursday, February 11, 2016 / 
Rules and Regulations

[[Page 7414]]


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DEPARTMENT OF THE INTERIOR

Fish and Wildlife Service

DEPARTMENT OF COMMERCE

National Marine Fisheries Service

50 CFR Part 424

[Docket No. FWS-HQ-ES-2012-0096; Docket No. 120106025-5640-03; 
4500030114]
RIN 1018-AX86; 0648-BB79


Listing Endangered and Threatened Species and Designating 
Critical Habitat; Implementing Changes to the Regulations for 
Designating Critical Habitat

AGENCY: U.S. Fish and Wildlife Service, Interior; National Marine 
Fisheries Service, Commerce.

ACTION: Final rule.

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SUMMARY: We, the U.S. Fish and Wildlife Service (FWS) and the National 
Marine Fisheries Service (NMFS) (collectively referred to as the 
``Services'' or ``we''), amend portions of our regulations that 
implement the Endangered Species Act of 1973, as amended (Act). The 
revised regulations clarify, interpret, and implement portions of the 
Act concerning the procedures and criteria used for adding species to 
the Lists of Endangered and Threatened Wildlife and Plants and 
designating and revising critical habitat. Specifically, the amendments 
make minor edits to the scope and purpose, add and remove some 
definitions, and clarify the criteria and procedures for designating 
critical habitat. These amendments are based on the Services' review of 
the regulations and are intended to clarify expectations regarding 
critical habitat and provide for a more predictable and transparent 
critical habitat designation process. Finally, the amendments are also 
part of the Services' response to Executive Order 13563 (January 18, 
2011), which directs agencies to review their existing regulations and, 
among other things, modify or streamline them in accordance with what 
has been learned.

DATES: Effective date: This rule is effective March 14, 2016. 
Applicability date: This rule applies to rules for which a proposed 
rule was published after March 14, 2016.

ADDRESSES: Public input and a list of references cited for this final 
rule are available on the Internet at http://www.regulations.gov. 
Supporting documentation used in the preparation of this rule will be 
available for public inspection, by appointment, during normal business 
hours at: U.S. Fish and Wildlife Service, Division of Conservation and 
Classification, 5275 Leesburg Pike; Falls Church, VA 22041-0041, 
telephone 703/358-2171; facsimile 703/358-1735 and National Marine 
Fisheries Service, Office of Protected Resources, 1315 East-West 
Highway, Silver Spring, MD 20910, telephone 301-713-1401; facsimile 
301-713-0376.

FOR FURTHER INFORMATION CONTACT: Douglas Krofta, U.S. Fish and Wildlife 
Service, Division of Conservation and Classification, 5275 Leesburg 
Pike, Falls Church, VA 22041, telephone 703/358-2527; facsimile 703/
358-1735; or Marta Nammack, National Marine Fisheries Service, Office 
of Protected Resources, 1315 East-West Highway, Silver Spring, MD 
20910, telephone 301/427-8469; facsimile 301/713-0376. If you use a 
telecommunications device for the deaf (TDD), call the Federal 
Information Relay Service (FIRS) at 800-877-8339.

SUPPLEMENTARY INFORMATION: This document is one of three listed below, 
of which two are final rules and one is a final policy:
     A final rule that amends the regulations governing section 
7 consultation under the Endangered Species Act to revise the 
definition of ``destruction or adverse modification'' of critical 
habitat. The previous regulatory definition had been invalidated by 
several courts for being inconsistent with the language of the Act. 
That final rule amends title 50 of the Code of Federal Regulations 
(CFR) at part 402. The Regulation Identifier Numbers (RINs) are 1018-
AX88 and 0648-BB80, and the final rule may be found on http://www.regulations.gov at Docket No. FWS-R9-ES-2011-0072.
     A final rule that amends the regulations governing the 
designation of critical habitat under section 4 of the Act. A number of 
factors, including litigation and the Services' experiences over the 
years in interpreting and applying the statutory definition of 
``critical habitat,'' highlighted the need to clarify or revise the 
regulations. This final rule (this document) amends 50 CFR part 424. It 
is published under RINs 1018-AX86 and 0648-BB79 and may be found on 
http://www.regulations.gov at Docket No. FWS-HQ-ES-2012-0096 or at 
Docket No. NOAA-NMFS-2014-0093.
     A final policy pertaining to exclusions from critical 
habitat and how we consider partnerships and conservation plans, 
conservation plans permitted under section 10 of the Act, Tribal lands, 
national-security and homeland-security impacts and military lands, 
Federal lands, and economic impacts in the exclusion process. This 
final policy complements the revised regulations at 50 CFR part 424 and 
clarifies expectations regarding critical habitat, and provides for a 
more predictable and transparent exclusion process. The policy is 
published under RIN 1018-AX87 and 0648-BB82 and may be found on http://www.regulations.gov at Docket No. FWS-R9-ES-2011-0104.

Background

    The Endangered Species Act of 1973, as amended (16 U.S.C. 1531 et 
seq.), states that the purposes of the Act are to provide a means to 
conserve the ecosystems upon which listed species depend, to develop a 
program for the conservation of listed species, and to achieve the 
purposes of certain treaties and conventions. Moreover, the Act states 
that it is the policy of Congress that the Federal Government will seek 
to conserve threatened and endangered species, and use its authorities 
to further the purposes of the Act.
    In passing the Act, Congress viewed habitat loss as a significant 
factor contributing to species endangerment. Habitat destruction and 
degradation have been a contributing factor causing the decline of a 
majority of species listed as threatened or endangered species under 
the Act (Wilcove et. al. 1998). The present or threatened destruction, 
modification, or curtailment of a species' habitat or range is included 
in the Act as one of the factors on which to base a determination of 
threatened or endangered species status. One of the tools provided by 
the Act to conserve species is the designation of critical habitat.
    The purpose of critical habitat is to identify the areas that are 
essential to the species' recovery. Once critical habitat is 
designated, it can contribute to the conservation of listed species in 
several ways. Specifying the geographic location of critical habitat 
facilitates implementation of section 7(a)(1) of the Act by identifying 
areas where Federal agencies can focus their conservation programs and 
use their authorities to further the purposes of the Act. Designating 
critical habitat also helps focus the conservation efforts of other 
conservation partners, such as State and local governments, 
nongovernmental organizations, and individuals. Furthermore, when 
designation of critical habitat occurs near the time of listing, it 
provides a form of early conservation planning guidance (e.g., 
identifying some of the areas that are needed for recovery, the 
physical and

[[Page 7415]]

biological features needed for the species' life history, and special 
management considerations or protections) to bridge the gap until the 
Services can complete recovery planning.
    In addition to serving as an educational tool, the designation of 
critical habitat also provides a significant regulatory protection--the 
requirement that Federal agencies ensure, in consultation with the 
Services under section 7(a)(2) of the Act, that their actions are not 
likely to destroy or adversely modify critical habitat. The Federal 
Government, through its role in water management, flood control, 
regulation of resources extraction and other industries, Federal land 
management, and the funding, authorization, and implementation of 
myriad other activities, may propose actions that are likely to affect 
critical habitat. The designation of critical habitat ensures that the 
Federal Government considers the effects of its actions on habitat 
important to species' conservation and avoids or modifies those actions 
that are likely to destroy or adversely modify critical habitat. This 
benefit is especially valuable when, for example, species presence or 
habitats are ephemeral in nature, species presence is difficult to 
establish through surveys (e.g., when a plant's ``presence'' is 
sometimes limited to a seed bank), or protection of unoccupied habitat 
is essential for the conservation of the species.
    The Secretaries of the Interior and Commerce (the ``Secretaries'') 
share responsibilities for implementing most of the provisions of the 
Act. Generally, marine and anadromous species are under the 
jurisdiction of the Secretary of Commerce and all other species are 
under the jurisdiction of the Secretary of the Interior. Authority to 
administer the Act has been delegated by the Secretary of the Interior 
to the Director of FWS and by the Secretary of Commerce to the 
Assistant Administrator for Fisheries.
    There have been no comprehensive amendments to the Act since 1988, 
and no comprehensive revisions to part 424 of the implementing 
regulations since 1984. In the years since those changes took place, 
the Services have gained considerable experience in implementing the 
critical habitat requirements of the Act, and there have been numerous 
court decisions regarding the designation of critical habitat.
    On May 1, 2012, the Services finalized the revised implementing 
regulations related to publishing textual descriptions of proposed and 
final critical habitat boundaries in the Federal Register for 
codification in the Code of Federal Regulations (77 FR 25611). That 
final rule revised 50 CFR 424.12(c) to make the process of designating 
critical habitat more user-friendly for affected parties, the public as 
a whole, and the Services, as well as more efficient and cost 
effective. Since the final rule became effective on May 31, 2012, the 
Services have continued the publication of maps of proposed and final 
critical habitat designations in the Federal Register, but the 
inclusion of any textual description of the designation boundaries in 
the Federal Register for codification in the Code of Federal 
Regulations is optional. Because we revised 50 CFR 424.12(c) 
separately, we do not discuss that paragraph further in this final 
rule.
    On August 28, 2013, the Services finalized revisions to the 
regulations for impact analyses of critical habitat (78 FR 53058). 
These changes were made as a result of the President's February 28, 
2012, Memorandum, which directed us to take prompt steps to revise our 
regulations to provide that the economic analysis be completed and made 
available for public comment at the time of publication of a proposed 
rule to designate critical habitat. These revisions also state that the 
impact analysis should focus on the incremental effects resulting from 
the designation of critical habitat. Because we have revised 50 CFR 
424.19 separately, we do not discuss that section further in this final 
rule.

Summary of Comments and Recommendations

    In the proposed rule published on May 12, 2014 (79 FR 27066), we 
requested that all interested parties submit written comments on the 
proposal by July 11, 2014. We also contacted appropriate Federal and 
State agencies, scientific experts and organizations, and other 
interested parties, and invited them to comment on the proposal. We did 
not receive any requests for a public hearing. We did receive several 
requests for an extension of the public comment period, and on June 26, 
2014 (79 FR 36284), we extended the public comment period to October 9, 
2014. All substantive information provided during the comment periods 
has either been incorporated directly into this final determination or 
addressed in the more specific response to comments below.

General Issues

    (1) Comment: Several commenters, including several States, provided 
edits to the proposed regulation.
    Our Response: We have reviewed the edits provided and, where 
appropriate, we have incorporated them into this final regulation. The 
more specific comments and edits are addressed below.
    (2) Comment: Several comments stated that the proposed changes to 
the regulation would vastly expand the area of critical habitat 
designation, in direct conflict with using the critical habitat 
designation as a conservation tool.
    Our Response: The proposed changes to the regulation are not likely 
to vastly expand the areas included in any particular critical habitat 
designation. Many commenters focused on the inclusion of unoccupied 
areas or perception that the proposed changes expand the Services' 
authority to include such areas in a critical habitat designation. 
Section 3(5)(A) of the Act expressly allows for the consideration and 
inclusion of unoccupied habitat in a critical habitat designation if 
such habitat is determined to be essential for the conservation of the 
species. However, the existing implementing regulations state that such 
unoccupied habitat can be considered only if a determination is made 
that the Service(s) cannot recover the species with the inclusion of 
only the ``geographical area presently occupied'' by the species, which 
is generally understood to refer to habitat occupied at the time of 
listing (50 CFR 424.12(e)). As discussed in the proposed rule, we have 
determined that the provision is an unnecessary and redundant 
limitation on the use of an important conservation tool. Further, we 
have learned from years of implementing the critical habitat provisions 
of the Act that a rigid step-wise approach, i.e., first designating all 
occupied areas that meet the definition of ``critical habitat'' 
(assuming that no unoccupied habitat is designated) and then, only if 
that is not enough, designating essential unoccupied habitat may not be 
the best conservation strategy for the species and in some 
circumstances may result in a designation that is geographically 
larger, but less effective as a conservation tool. Our proposed change 
will allow us to consider the inclusion of occupied and unoccupied 
areas in a critical habitat designation following any general 
conservation strategy that has been developed for the species. In some 
cases (e.g., wide ranging species like the spotted owl or lynx), we 
have found and expect that we will continue to find that the inclusion 
of all occupied habitat in a designation does not support the best 
conservation strategy for a species. We expect that the concurrent 
evaluation of occupied and unoccupied areas for a

[[Page 7416]]

critical habitat designation will allow us to develop more precise and 
deliberate designations that can serve as more effective conservation 
tools, focusing conservation resources where needed and minimizing 
unnecessary regulatory burdens.
    (3) Comment: Several commenters including one State noted that 
recovery planning and critical habitat designation are two different 
processes. A commenter also asked how the Services will ``infer'' that 
unoccupied areas will eventually become necessary for recovery given 
that recovery plans do not exist at the time of listing and when it is 
not appropriate to designate unoccupied areas that are essential for 
recovery.
    Our Response: While we agree that the designation of critical 
habitat and the recovery planning processes are different and guided by 
two separate provisions of the Act and implementing regulations, the 
ultimate goal of developing effective conservation tools and measures 
to recover a listed species is the same. A general draft conservation 
strategy or criterion that informs the construction of a critical 
habitat designation is often developed in consultation with staff 
working in recovery planning and implementation to ensure 
collaboration, consistency, and efficiency as the Services work with 
the public and partners to recover a listed species.
    We have replaced the word ``infer'' with the word ``determine'' in 
our preambular discussion to be clearer. We will determine from the 
record and based on any existing conservation strategy for the species 
if any unoccupied areas are likely to become necessary to support the 
species' recovery. In order to designate unoccupied areas, we are 
required by section 3(5)(A) of the Act to determine that such areas are 
essential for the conservation of the species.
    (4) Comment: Several commenters stated that this attempt by the 
Services to expand their own discretion and authority without 
congressional authorization is neither justified nor lawful.
    Our Response: The amended regulations do not expand the Services' 
discretion. Rather, they clarify the existing process by which we 
designate critical habitat based on lessons learned over many years of 
implementing critical habitat and relevant case law. The amendments 
synchronize the language in the implementing regulations with that in 
the Act to minimize confusion, and clarify the discretion and authority 
that Congress provided to the Secretaries under the Act. The Services 
are exercising their discretion to resolve ambiguities and fill gaps in 
the statutory language, and the amended regulations are a permissible 
interpretation of the statute.
    (5) Comment: Several commenters were concerned that the changes 
would lead to extensive litigation because the Services failed to 
establish clear, measurable, and enforceable criteria for what should 
or should not be considered ``habitat'' for a given species, let alone 
whether an area should or should not be considered critical habitat 
under the Act.
    Our Response: The amended regulations do not substantially change 
the manner in which critical habitat is designated. Rather, the 
amendments primarily clarify how the Services already have been 
developing critical habitat designations. We have set forth criteria in 
the final rule below. We will also refine, to the extent practicable, 
and articulate the specific criteria used for identifying which 
features and areas are essential to the conservation of a species and 
the subsequent development of a critical habitat designation for each 
species (using the best scientific data available) in the proposed and 
final critical habitat rules. Our intent is to be more transparent 
about how we define the criteria and any generalized conservation 
strategy that may have been used in the development of a critical 
habitat designation to provide for a more predictable and transparent 
critical habitat designation process.
    (6) Comment: Several commenters stated that the Services have 
misled stakeholders and effectively failed to provide adequate notice 
and opportunity for public comment. The comments assert that we should 
withdraw our proposal, republish it with a more accurate and clear 
summary of the changes to the regulations and their implications, and 
provide further opportunity for public comment.
    Our Response: The Services have not misled stakeholders. We 
initially provided a 60-day public comment period on the proposed 
rule.In response to public comments requesting an extension, we 
extended the comment period for an additional 90 days. This followed 
extensive coordination and discussion with potentially affected Federal 
agencies, States, and stakeholders and partners, as well as formal 
interagency review under Executive Order 12866. We also held subsequent 
calls and extensive webinars with many stakeholders to further inform 
them about the proposed rule and address any questions or concerns they 
may have had at the time. This satisfies the Services obligation to 
provide notice and comment under the Act and the Administrative 
Procedure Act (APA).
    (7) Comment: Several tribes commented that traditional ecological 
knowledge should constitute the best scientific data available and be 
used by the Services.
    Our Response: Traditional ecological knowledge (TEK) is important 
and useful information that can inform us as to the status of a 
species, historical and current trends, and threats that may be acting 
on it or its habitat. The Services have often used TEK to inform 
decisions under the Act regarding listings, critical habitat, and 
recovery. The Act requires that we use the best scientific and 
commercial data available to inform decisions to list a species and the 
best scientific data available to inform designation of critical 
habitat, and in some cases TEK may be the best data available. The 
Services cannot determine, as a general rule, that TEK will be the best 
available data in every rulemaking. However, we will consider TEK along 
with other available data, weighing all data appropriately in the 
decision process. We will explain the sources of data, the weight given 
to various types of data, and how data are used to inform our decision. 
Further, any data, including TEK, used by the Services to support a 
listing determination or in the development of a critical habitat 
designation may be subject to disclosure under the Freedom of 
Information Act (FOIA).
    (8) Comment: One State strongly advised the Services to withdraw 
the Federal Register notice and form a Policy Advisory group on the 
issue. The Western Governors' Association requested that the rule be 
reworked in cooperation with Western States and utilize State data to 
reach a more legally defensible result and to foster partnerships.
    Our Response: We appreciate the interest by the State and Western 
Governors' Association to form a policy advisory group and work 
collaboratively with the Services. However, the Services have already 
coordinated with States, Federal agencies, and partners to develop the 
amended regulations, and do not agree that a Policy Advisory group is 
necessary. The Services have relied on input from States and other 
entities, as well as lessons we have learned from implementing the 
provisions for critical habitat under the Act, to make the regulations 
consistent with the statute, codify our existing practices, and provide 
greater clarity and flexibility to designate critical habitat so that 
it can be a more effective conservation tool. We will continue

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working collaboratively with Federal, State, and private partners to 
ensure that our critical habitat designations are based on the best 
available scientific information and balance the conservation needs of 
the species with the considerations permitted under section 4(b)(2).

Scope and Purpose (Section 424.01)

    (9) Comment: Several commenters including several States suggested 
that we retain the words ``where appropriate'' to qualify the reference 
to designation or revision of critical habitat as it is a phrase of 
limiting potential. Some commenters suggested that we replace the words 
with ``unless deemed imprudent'' to better clarify the intention of 
this proposed change.
    Our Response: As discussed in our proposal, the phrase ``where 
appropriate'' was misleading and implied a greater flexibility than the 
Services have regarding whether to designate critical habitat. The 
Services have the discretion not to designate critical habitat only for 
species listed prior to 1978 for which critical habitat has not 
previously been designated or where an explicit determination is made 
that designation is not prudent. Based on our experiences with 
designating critical habitat, a determination that critical habitat is 
not prudent is rare. Removing the phrase ``where appropriate'' still 
allows the Services to determine that critical habitat is not prudent 
for a species if such determination is supported by the best available 
scientific information. Replacing it with the phrase ``unless deemed 
imprudent'' implies that not prudent determinations are common, which 
is not our intent. Deleting ``where appropriate'' provides the 
necessary clarification concerning the discretion the Services have in 
determining when to designate critical habitat.
    (10) Comment: Several commenters suggested that we add the words 
``at the appropriate time'' in place of the words ``where appropriate'' 
to qualify the reference to designation or revision of critical habitat 
in Sec.  424.01(a).
    Our Response: The Services are required under section 4(a)(3)(A) of 
the Act to designate critical habitat, to the maximum extent prudent 
and determinable, at the time a species is listed. The inclusion of the 
phrase ``at the appropriate time'' and the implication that the 
Services have flexibility regarding the timing of the designation 
process runs counter to the statutory text.

Definitions

    (11) Comment: Several commenters including one State asked us to 
keep the definitions for ``critical habitat,'' ``endangered species,'' 
``plant,'' ``Secretary,'' ``State Agency,'' and ``threatened species'' 
in the regulation for the purpose of transparency and clarity because 
they are core definitions in the authorizing statute and are important 
terms in the regulations.
    Our Response: These terms are defined in the Act itself, thus 
repeating them verbatim in the implementing regulations is redundant 
and does not resolve any ambiguity.
    (12) Comment: Several commenters were concerned that the addition 
of the phrase ``i.e., the species is recovered'' to the definition of 
``conserve, conserving, and conservation'' to explain the point at 
which the measures provided under the Act are no longer necessary 
resulted in a higher standard for conservation than is warranted. 
Others commented that the Services are implying that conservation of 
critical habitat is equated to meeting recovery goals.
    Our Response: The use of ``recovered'' in the definition of 
``conserve, conserving, and conservation'' does not introduce a new 
standard for conservation. Rather, it clarifies the existing link 
between conservation and recovery. Conservation is the use of all 
methods and procedures that are necessary to bring any species to the 
point at which measures provided by the Act are no longer necessary. 
Recovery is improvement in the status of listed species to the point at 
which listing is no longer appropriate. Also see our response to 
comment 2.
    (13) Comment: One commenter stated that if the ``i.e., the species 
is recovered'' is added to the definition of ``conserve, conserving, 
and conservation,'' then the Services should also add the phrase ``or 
extinct'' since these examples describe when the action of conservation 
(a set of methods and procedures) are not necessary anymore.
    Our Response: ``Conserve, conserving, and conservation'' is defined 
in the Act as to use and the use of all methods and procedures which 
are necessary to bring any endangered species or threatened species to 
the point at which the measures provided pursuant to this Act are no 
longer necessary. Extinction does not meet this definition because 
extinct species have not been brought to the point at which listing is 
no longer necessary. Our regulations at Sec.  424.11(d) state that a 
species may be delisted for one or more of the following reasons: (1) 
Extinction; (2) Recovery; (3) Original data for classification in 
error. Each of these is a separate category, and only recovered species 
have reached the recovered state contemplated by the definition of 
``conserve, conserving, and conservation.'' (See our response to 
comment 12).
    (14) Comment: Several commenters stated that proposing to define 
``geographical area occupied by the species'' is an amendment to the 
definition in the Act and is illegal.
    Our Response: The Act does not define the phrase ``geographical 
area occupied by the species.'' The Services may develop, clarify, and 
revise regulations implementing the provisions of a statute, provided 
that our interpretations do not conflict with or exceed the authority 
provided by the statute. Since there has been considerable confusion as 
to the specific area and scale the phrase refers to, we find that it is 
important to provide a reasonable and practicable definition for this 
phrase based on what we have learned over the many years of 
implementing critical habitat under the Act. Providing this definition 
will clarify how we designate critical habitat and which areas are 
considered occupied at the time of listing.
    (15) Comment: Several States commented that the definition of 
``geographical area occupied by the species'' provides no objective 
criteria, which will only lead to further confusion and more 
litigation. One State requested that we abandon the definition. Several 
States offered revised language.
    Our Response: The Services are defining the term ``geographical 
area occupied by the species'' because the phrase is found in the Act 
but is not defined in the Act's regulations, and because there has been 
considerable confusion over the proper interpretation of the phrase. We 
have clearly stated and explained the definition in our proposal. 
Further, we will specify the criteria used for identifying which 
features and areas are essential to the conservation of a species and 
the subsequent development of a critical habitat designation for each 
species (using the best scientific data available) in the proposed and 
final rules for a particular critical habitat designation. Our intent 
is to be more clear and transparent about how we define the criteria 
and any generalized conservation strategy that may have been used in 
the development of a critical habitat designation to enhance its use as 
a conservation tool.
    (16) Comment: One State commented that ``regular or consistent 
use'' is a hallmark of a finding of occupied habitat, and should be 
required by the

[[Page 7418]]

``geographical area occupied by the species'' definition, not excluded. 
The State pointed to the decision in Arizona Cattle Growers' Ass'n v. 
Salazar, 606 F.3d 1160 (9th Cir. 2010), in which the court upheld the 
application of the Service's definition of occupied habitat for the 
Mexican spotted owl as ``areas that the owl uses with sufficient 
regularity that it is likely to be present during any reasonable span 
of time.'' Another State similarly commented that the use of the term 
``even if not used on a regular basis'' in the definition of 
geographical area occupied by the species will now enable the Services 
to designate critical habitat within areas infrequently used by a 
species.
    Our Response: We respectfully disagree with the commenter that the 
definition of ``geographical area occupied by the species'' should be 
limited to only those areas in which the use by the species is 
``regular or consistent.'' As discussed at length in our proposal, we 
find that the phrase ``geographical area occupied by the species'' 
should also include areas that the species uses on an infrequent basis 
such as ephemeral or migratory habitat or habitat for a specific life-
history phase. We find that this more inclusive interpretation is 
consistent with legislative history and Arizona Cattle Growers' Ass'n 
v. Salazar, 606 F.3d 1160 (9th Cir. 2010), and congressional intent. 
Additionally, based on our experience of implementing the provisions of 
critical habitat for many years, we have found that there has been 
considerable confusion and differing interpretations of this phrase. 
Our intent through the definition provided in our proposal was to 
provide greater clarity regarding how we interpret the phrase and the 
general scale at which we define occupancy. We give examples in the 
rule of areas such as migratory corridors, seasonal habitats, and 
habitats used periodically (but not solely by vagrant individuals). We 
will use the best scientific data available to determine if such areas 
occur for a species. Each species' life cycle is different and the 
details of such areas, if they exist, would be explained in the 
proposed and final rules designating critical habitat for a particular 
species. These areas would also have to meet the criteria for occupied 
areas in the definition of critical habitat found in the Act.
    (17) Comment: One commenter stated that the definition of 
``geographical area occupied by the species'' fails to include 
paragraph 3(5)(C) from the Act: ``Except in those circumstances 
determined by the Secretary, critical habitat shall not include the 
entire geographical area which can be occupied by the threatened or 
endangered species.''
    Our Response: The regulatory definition is intended to clarify how 
we interpret the phrase, not to repeat the language of the statute. 
Further, paragraph 3(5)(C) in the Act, applies to the geographic area 
that can be occupied by a species, as opposed to the geographic area 
actually occupied by the species.
    (18) Comment: Several commenters including several States stated 
that the definition of ``geographical area occupied by the species'' 
provides unlimited discretion and authority to the Secretary to 
determine the boundaries and size of the critical habitat area.
    Our Response: While we agree that the Secretaries are afforded 
significant discretion and authority to define and designate critical 
habitat, we respectfully disagree with the commenter that the 
discretion and authority is unlimited. First, critical habitat is to be 
defined and designated based on the best scientific data available. 
Second, we have learned from years of implementing the critical habitat 
provisions of the Act that often a rigid step-wise approach, i.e., 
first designating all occupied areas that meet the definition of 
``critical habitat'' (assuming that no unoccupied habitat is 
designated) and then, only if that is not enough, designating essential 
unoccupied habitat, may not be the best conservation strategy for the 
species and in some circumstances may result in a designation that is 
geographically larger, but less effective as a conservation tool. By 
providing a definition of ``geographical areas occupied by the 
species'' along with the other revisions and clarifications in our 
proposal, we can be more precise and deliberate in the development of 
our critical habitat designations following any general conservation 
strategy that has been developed for the species. Lastly, we are still 
bound by paragraph 3(5)(C) (see response to Comment 17 above).
    (19) Comment: Several commenters asked, ``What standards will be in 
place to substantiate that such areas are used as part of a species' 
life cycle and not just an individual vagrant's life cycle'' in the 
definition of ``geographical area occupied by the species.'' Several 
States also commented that the vagrant animal exception in the rule is 
vague and subject to varying interpretations because no definition of 
``vagrant'' is provided.
    Our Response: As stated in our proposed rule, vagrant individuals 
are species who wander far from the known range of the species. We will 
use the best scientific data available to determine whether an area is 
used by a species for part of its life cycle versus an individual 
vagrant's life cycle. The basis for our determination on this point 
will be articulated in our proposed and final rules designating 
critical habitat for a particular species and subject to public review 
and comments, as well as peer review.
    (20) Comment: Several commenters suggested that we add the word 
``regularly'' to the sentence ``Such areas may include those areas used 
regularly throughout all or part of the species' life cycle'' in the 
definition of ``geographical area occupied by the species.''
    Our Response: The suggested addition would conflict with the second 
part of the sentence, in which we state ``even if not used on a regular 
basis (e.g., migratory corridors, seasonal habitats, and habitats used 
periodically, but not solely by vagrant individuals).'' If the best 
scientific data available indicates that these areas are used 
periodically during some portion of the listed species' life history, 
then these areas should be considered in the development of a critical 
habitat designation.
    (21) Comment: Several commenters questioned what would happen to 
the size, shape, and location of critical habitat areas that were 
designated in areas that were not regularly used as conditions change 
and travel corridors shift or breeding areas move.
    Our Response: As discussed in our proposal and throughout this 
final rule, critical habitat is to be based on the best scientific data 
available, and to the maximum extent prudent and determinable 
promulgated concurrent with the listing of a species. Often at the time 
of listing when we are developing a designation of critical habitat for 
a species, we may have only limited data concerning the distribution of 
the species, its life-history requirements, and other factors that can 
inform the identification of features or specific areas essential to 
the conservation of the species. Such limited data may still be the 
best scientific data available. The Services are required in a proposed 
and final designation of critical habitat to clearly articulate what 
data are being used and the criteria for defining the specific 
essential features and areas. The Services must also allow for public 
review and comments on the proposal to ensure public involvement in the 
process and provide as much clarity and transparency as possible. The 
designation of critical habitat results in a regulation in which the 
boundaries of critical habitat for a species are defined. These 
boundaries can be changed only

[[Page 7419]]

through rulemaking. Thus, if habitat changes following a designation, 
such that those specific areas no longer meet the definition of 
``critical habitat,'' the areas within the boundaries of critical 
habitat are still critical habitat until such time as a revision to the 
designation is promulgated. Any interested party may file a petition 
with the Services to request revision of a critical habitat 
designation.
    (22) Comment: A number of commenters, including several States, 
asserted that the proposed definition of ``geographical area occupied 
by the species'' is so vague it could lead to huge areas of unoccupied 
and potentially unsuitable habitat being designated as critical habitat 
that would result in the public or the regulated community having no 
consistency.
    Our Response: The proposed definition would not lead to more 
expansive critical habitat designations. We do not designate areas that 
are occupied at the time of listing unless those areas have one or more 
of the physical or biological features present that are essential to 
the conservation of the species and may require special management 
considerations or protection. Any unoccupied habitat at the time of 
listing could only be designated critical habitat under section 
3(5)(A)(ii) of the Act, which requires a determination by the Secretary 
that such areas are essential for the conservation of the species. 
Further, we will articulate the specific criteria used for identifying 
which features and areas are essential to the conservation of a species 
during the subsequent development of a critical habitat designation for 
each species (using the best scientific data available) in the proposed 
and final rules designating critical habitat for that species. Our 
intent is to be more clear and transparent about how we define the 
criteria for designation and how in the development of a critical 
habitat designation we use any generalized conservation strategy that 
may have been developed for the species. The proposed rule would inform 
the public, including landowners and businesses, of our critical 
habitat designation and allow them time to review and provide comments.
    (23) Comment: Two States commented that the Services have justified 
the new definition of ``geographical area occupied by the species'' by 
misrepresenting the court's decision in Otay Mesa Property L.P. v. DOI, 
646 F.3d 914 (D.C. Cir. 2011), reversing 714 F. Supp. 2d 73 (D.D.C. 
2010). The States contend that we asserted that the D.C. Circuit's 
decision supported our interpretation, even though a thorough review of 
the decision reveals the court did not hold or find that the Act allows 
the Services to make a post-listing determination of occupancy if based 
on adequate data, simply because the court did not decide that 
particular issue.
    Our Response: We agree that the D.C. Circuit did not hold or find 
that the ESA allows the Services to make a post-listing determination 
of occupancy. Our proposed rule, however, did not assert that the 
circuit court opinion supported our interpretation. Instead, the 
proposed rule correctly noted that the district court opinion supported 
our interpretation. See 714 F. Supp. 2d at 83 (``The question, 
therefore, is not whether FWS knew in 1997, when it listed the San 
Diego fairy shrimp as endangered, that there were San Diego fairy 
shrimp on Plaintiffs' property but, rather, whether FWS reasonably 
concluded, based on data from 2001, that the shrimp had been on the 
property in 1997.''). Because that decision was reversed by the D.C. 
Circuit, however, we needed to explain what effect that D.C. Circuit's 
decision had on the district court opinion with respect to this issue. 
Because the D.C. Circuit reversed the district court's opinion on other 
grounds (i.e., that the evidence in the record was inadequate), the 
D.C. Circuit did not address the interpretive issue of whether later 
data can support a determination of occupancy at the time of listing. 
Thus, we stated, accurately, that the D.C. Circuit ``did not disagree'' 
with this aspect of the district court's opinion. We did not mean to 
suggest that the D.C. Circuit had considered and affirmed this aspect 
of the district court's opinion.
    (24) Comment: One State commented that the Service's reliance on 
the decision in Arizona Cattle Growers' Assoc. v. Salazar, 606 F.3d 
1160 (9th Cir. 2010), to expand the definition of ``occupied'' is 
misplaced because the Services oversimplify and misstate the court's 
ruling. The State provided additional detail regarding the court's 
analysis, noting a variety of factors that the court suggested were 
relevant to a case-by-case determination of occupancy, and the court's 
emphasis on reasonableness.
    Our Response: None of the detail provided by the State is 
inconsistent with our summary of the holding: ``a determination that a 
species was likely to be temporarily present in the areas designated as 
critical habitat was a sufficient basis for determining those areas to 
be occupied, even if the species was not continuously present.''
    (25) Comment: One commenter asserted that the ``physical or 
biological features'' definition has too many if and if/then scenarios 
that appear too scientifically attenuated to serve as an appropriate 
basis for critical habitat designations.
    Our Response: In defining physical and biological features, we 
provided examples of types of features and conditions that we have 
found to be essential to certain species based on experience over many 
years of designating critical habitat for a wide variety of species. 
The determination of specific features essential to the conservation of 
a particular species will be based on the best scientific data 
available and explained in the proposal to designate critical habitat 
for that species, which will be available for public comment and peer 
review.
    (26) Comment: Several States commented that the new definition of 
``physical or biological features'' is excessively broad and completely 
unnecessary. They stated that the new definition goes too far and 
allows the Services to include areas that do not currently have any 
essential physical or biological features necessary for a species; they 
asserted that the original language of the Act provides enough latitude 
to allow for ephemeral, essential habitat requirements. Two States also 
asked the Services to more clearly define the phrase ``reasonable 
expectation'' found in the preamble discussion (``the Services could 
conclude that essential physical or biological features exist in a 
specific area . . . if there were documented occurrences of the 
particular habitat type in the area and a reasonable expectation of 
that habitat occurring again'').
    Our Response: Because the term ``physical or biological features'' 
is not defined in the Act, the Services clarify how they have been 
using this term. A ``reasonable expectation'' would be based on the 
best scientific data available showing that the habitat has a temporal 
or cyclical nature in that in some years particular habitat elements 
may not be present, but the record indicates that, once certain 
conditions are met, the habitat will recur and be used by the species.
    (27) Comment: One State contended that the Services support the new 
definition of ``physical or biological features'' with a flawed 
interpretation of the opinion in Cape Hatteras Access Preservation 
Alliance v. DOI, 344 F. Supp. 2d 108 (D.D.C. 2004). According to the 
State: That opinion does not justify expanding the meaning and breadth 
of the phrase; the Services should withdraw the definition because the 
Services cite no authority for making

[[Page 7420]]

such a change and thus lack any justification for doing so; the Court 
explicitly rejected the Service's attempt to broaden the scope of 
critical habitat designation; and the Services should not attempt to 
expand their authority by circumventing the Federal courts.
    Our Response: The district court rejected the U.S. Fish and 
Wildlife Service's critical habitat designation for the piping plover 
as including lands that did not currently contain the features defined 
in the rule, but noted that it was not addressing whether dynamic land 
capable of supporting plover habitat can itself be one of the physical 
or biological features essential to the conservation of the plover. The 
court noted that the Service had not made that assertion in the context 
of the piping plover designation. To address this unintentional gap, we 
are setting out our interpretation as part of the framework 
regulations. This new definition clarifies that features can be dynamic 
or ephemeral habitat characteristics. We clearly state in the rule that 
an area within the geographical area occupied by the species, with 
habitat that is not ephemeral by nature but that has been degraded in 
some way, must have one or more of the features at the time of 
designation to be critical habitat.
    (28) Comment: Several commenters recommended that the Services 
separately define ``physical features'' and ``biological features'' to 
provide greater clarity.
    Our Response: The Act refers to ``physical or biological 
features,'' so it is not necessary to define them separately. We find 
that the definition provided in the draft proposal along with the 
examples and accompanying explanation provides sufficient clarity and 
that separately defining these terms in the final regulation would not 
be helpful. However, the Services must clearly articulate, in proposed 
and final rules designating critical habitat for a particular species, 
which physical or biological features are essential to the conservation 
of the species and the basis for that critical habitat.
    (29) Comment: Several commenters suggested that we remove ``at a 
scale determined by the Secretary to be appropriate'' and add ``for a 
specific unoccupied area to be designated as critical habitat, it must 
be reasonably foreseeable that (1) such area will develop the physical 
and biological features necessary for the species and (2) such features 
will be developed in an amount and quality that the specific area will 
serve an essential role in the conservation of the species.''
    Our Response: We determine whether unoccupied areas are essential 
for the conservation of the species by considering the best available 
scientific data regarding the life-history, status, and conservation 
needs of the species, which include considerations similar to those 
raised by the commenter. However, we do not agree that the specific 
findings suggested by the commenter either are required under the 
statute or are useful limitations for the Services to impose on 
themselves. Further, our rationale for why unoccupied areas are 
essential for the conservation of the species will be articulated in 
the proposed rule designating critical habitat for a particular species 
and available for public review and comment. Finally, we decline to 
remove the language ``at a scale determined by the Secretary to be 
appropriate because we have concluded that it is useful to clarify that 
different circumstances will require different scales of analysis, and 
the Secretary retains the discretion to choose an appropriate scale.
    (30) Comment: A commenter suggested that we add the phrase ``based 
on the best scientific data available'' after the word ``appropriate'' 
in ``the Secretary will identify, at a scale determined by the 
Secretary to be appropriate'' in Sec.  424.12(b)(2). The commenter 
further stated that this provides a reference to the scientific basis 
on which the Secretary will determine this scale.
    Our Response: The phrase ``based on the best scientific data 
available'' is captured in Sec.  424.12(b)(1)(ii). Under section 
4(b)(2) of the statute, it also states that the Secretary shall 
designate critical habitat, and make revisions thereto, under 
subsection (a)(3) on the basis of the best scientific data available. 
It would be redundant to add the phrase to the section the commenter 
has suggested. Nevertheless, as stated above, the Secretary's choice of 
scale will be based on the best available scientific data.
    (31) Comment: A commenter suggested that we replace the phrase 
``conservation needs of the species'' with ``physical or biological 
features'' in Sec.  424.12(b)(2). The commenter stated that the phrase 
``conservation needs of the species'' is undefined and adds ambiguity 
to the regulation.
    Our Response: Section 424.12(b)(2) refers to the designation of 
critical habitat in unoccupied areas. Under section 3(5)(A)(ii) of the 
statute, unoccupied areas are subject only to the requirement that the 
Secretary determine that such areas are essential for the conservation 
of the species. The presence of physical or biological features is not 
required by the statute for the inclusion of unoccupied areas in a 
designation of critical habitat. Incorporating the edit suggested by 
the commenter would limit Secretarial discretion in a way inconsistent 
with the statute by mandating the presence of essential features as a 
prerequisite to inclusion of unoccupied areas in a critical habitat 
designation. Therefore, it would be inappropriate to use the term 
``physical or biological features'' in this section.
    (32) Comment: Several commenters stated that the Services' claim 
that they may designate acres or even square miles without evidence 
that those areas contain features essential to the conservation of the 
species is contrary to the Act. Two States commented that the scale of 
critical habitat should not be left to the Secretary's absolute 
discretion and must be chosen and justified at a scale that both makes 
sense in terms of the habitat needs of the species and is fine enough 
to demonstrate that the physical or biological features are found in 
each specific area of occupied habitat. One State also provided revised 
language for Sec.  424.12(b)(1) by replacing ``at a scale determined by 
the Secretary to be appropriate'' with ``at a scale consistent with the 
geographical extent of the physical or biological features essential to 
the species' conservation.''
    Our Response: We state in the proposed regulation that the 
Secretary need not determine that each square inch, yard, acre, or even 
mile independently meets the definition of critical habitat. However, 
setting out defined guidelines for the scale of an analysis in 
regulations would not be practicable for the consideration of highly 
diverse biological systems and greatly differing available data. Each 
critical habitat designation is different in terms of area proposed, 
the conservation needs of the species, the scope of the applicable 
Federal actions, economic activity, and the scales for which data are 
available. Additionally, the scale of the analysis is very fact 
specific. Therefore, the Services must have flexibility to evaluate 
these different areas in whatever way is most biologically and 
scientifically meaningful. For example, for a narrow-endemic species, a 
critical habitat proposal may cover a small area; in contrast, for a 
wide-ranging species, a critical habitat proposal may cover an area 
that is orders of magnitude greater. The appropriate scale for these 
two species may not be the same. For the narrow-endemic species, we may 
look at a very fine scale with a great level of detail. In contrast, 
for the wide-ranging

[[Page 7421]]

species, which may cover wide expanses of land or water, we may use a 
coarser scale, due to the sheer size of the proposed designation. Each 
critical habitat proposal includes a description of the scope of the 
area being proposed, and uses a scale appropriate to that situation 
based on the best scientific data available. The suggested language 
would not allow for the Secretarial discretion that is needed to be 
flexible to meet the conservation needs of the species. The proposed 
rule designating critical habitat for a particular species is made 
available for public review and comment, and interested parties may 
comment on the scale for a specific designation.
    (33) Comment: Several commenters stated that, in reaching this 
determination, the Services appear to conflate disparate terminology 
(specific areas versus occurrences) and rely upon a vague term (range) 
that does not adequately delineate what geographic areas are actually 
occupied by a species. Several commenters also requested additional 
explanation of the term ``range.''
    Our Response: Under section 3(5)(A)(i) of the Act, specific areas 
designated as critical habitat include those specific areas within the 
geographical area occupied by the species at the time the species is 
listed. As discussed in our proposal and this final rule, the 
geographical area that may generally be delineated around the species' 
occurrences is synonymous with the species' range. The term ``range'' 
used in our proposal refers to the general area currently occupied by 
the species at the time the listing determination is made. These areas 
are occupied by the species throughout all or part of the species' life 
cycle, even if not used on a regular basis. Some examples we give are 
migratory corridors, seasonal habitats, and habitats used periodically, 
but not solely by vagrant individuals. This scale of occupancy is 
different from a very narrow or limited delineation of areas of 
occupancy identified through presence and absence surveys for localized 
occurrences of the species. We, therefore, disagree that we are using a 
vague term in referring to range.
    (34) Comment: Several commenters including one State stated that by 
defining the geographical area occupied by the species as coextensive 
with the ``range'' and including multiple areas of occurrence, the 
Services are expanding the geographic extent of occupied habitat beyond 
the limits of judicial interpretation. They suggested we should define 
the area occupied by the species as limited to the specific location 
where the species occurs on a regular or consistent basis.
    Our Response: We have indicated that the geographical area occupied 
by the species is likely to be larger than the specific areas that 
would then be analyzed for potential designation under section 
3(5)(A)(i). We are not suggesting that the specific areas included in 
critical habitat should fill this area. To limit the definition to 
specific locations where the species occurs on a regular or consistent 
basis would not allow the Secretaries to designate areas that may be 
important for the conservation of a listed species that may only be 
periodically used by a species, such as breeding areas, foraging areas, 
and migratory corridors, thereby limiting Secretarial discretion.
    (35) Comment: One State asked if the range in the geographical area 
occupied by the species definition refers to the historical range or 
the currently occupied range.
    Our Response: The term ``range'' as indicated in our proposal 
refers to the generalized area currently occupied by the species at the 
time the listing determination is made, not the historical range.
    (36) Comment: One State also wanted to know if land-use 
restrictions within the geographical area occupied by the species would 
be put into place in addition to the designated critical habitat.
    Our Response: The revised regulations would not result in any 
change to land-use restrictions beyond the existing regulatory 
requirements under section 7 of the Act that Federal agencies consult 
with the Services to ensure that the actions they carry out, fund, or 
authorize are not likely to destroy or adversely modify critical 
habitat (see the final rule published elsewhere in today's Federal 
Register). The Act provides no special regulatory protections for those 
areas within the geographic area occupied by the species that are not 
designated as critical habitat, although the section 7 prohibition on 
jeopardy and the section 9 prohibitions may still be applicable.
    (37) Comment: Several States disagree with the Services' 
interpretation of the definition of ``occupied.'' This interpretation 
and inclusion of ``periodic or temporary'' areas will lead to a much 
larger consideration of critical habitat that is largely unnecessary 
for species recovery.
    Our Response: Identifying the geographic area occupied at the time 
of listing is only the first step in designating critical habitat. In 
occupied areas, we can only designate critical habitat if one or more 
of the physical or biological features are present and are found to be 
essential to the conservation of the species and may require special 
management considerations or protection. The inclusion of periodic or 
temporary areas would be based on the best scientific data available 
for the species and these areas would have to meet the criteria above.
    (38) Comment: Several commenters asked what constitutes being 
``temporarily present?'' The Services should explain that occupied 
areas require a demonstration of regular or consistent use within a 
reasonable period of time. One State commented that the Services should 
clarify the meaning of the terms ``periodically'' and ``temporarily'' 
to provide adequate guidance and set reasonable limits for potential 
critical habitat designations.
    Our Response: We will use the best scientific data available to 
determine occupied areas including those that are used only 
periodically or temporarily by a listed species during some portion of 
its life history. This will be determined on a species-by-species 
basis, and our rationale would be explained in the proposed and final 
rules for these species, which would be available for public review and 
comment.
    (39) Comment: Several commenters, including two States, were 
concerned about using ``indirect or circumstantial'' evidence to 
determine occupancy and questioned whether this qualified as the best 
scientific data available. One of the commenters asserted that the 
Services should only designate areas as occupied based on scientific 
evidence (including traditional and local knowledge) that breeding, 
foraging, or migratory behaviors actually occur in that location on a 
regular or consistent basis.
    Our Response: The Services will rely on the best scientific data 
available in determining which specific areas were occupied at the time 
of listing and which of these contain the features essential to the 
conservation of the species. The best available scientific data in some 
cases may only be indirect or circumstantial evidence. We will explain 
in the proposed rule designating critical habitat for a particular 
species if and how such evidence was used to determine occupancy and 
will provide the public with an opportunity to review and comment.
    (40) Comment: Several commenters, including two States, asked us to 
define and explain ``life-history needs.''
    Our Response: We give a sample list of life-history needs in the 
rule. This list includes but is not limited to water characteristics, 
soil type, geological features, sites, prey, vegetation, symbiotic 
species, or other features. The

[[Page 7422]]

life-history needs are what the species needs throughout its different 
life stages to survive and thrive.
    (41) Comment: One State commented that the term ``sites'' in the 
definition of ``physical or biological features'' is wholly ambiguous 
and must be defined, explained, or deleted.
    Our Response: We included the term ``sites'' in the definition of 
physical or biological features to keep the same level of specificity 
as currently is called for in the regulations, and our current 
regulations list ``sites for breeding, reproduction, rearing of 
offspring, germination, or seed dispersal'' among the examples of 
primary constituent elements that might be specified (50 CFR 
424.12(b)(4)). The term ``sites'' does not need to be defined or 
further explained because we rely on a plain dictionary meaning of 
``site'': The place, scene, or point of an occurrence or event 
(Merriam-Webster, 2015).
    (42) Comment: One State suggested that we simplify the ``physical 
or biological features'' definition as follows: ``Geographic or 
ecological elements within a species' range that are essential to its 
survival and reproduction, whether single or in combination, or 
necessary to support ephemeral habitats. Features may be described in 
conservation biology terms, including patch size and connectivity.''
    Our Response: We appreciate the State providing edits to simplify 
the phrase; however, based on our years of experience designating 
critical habitat and implementing it, we find that the text in our 
proposal and this final rule will provide greater clarity.
    (43) Comment: Several commenters, including one State, indicated 
that we needed a more specific delineation of what features may be 
considered and how they relate to the needs of the species.
    Our Response: We respectfully disagree with the commenters that 
further clarification should be added in this revised regulation. 
However, we do agree that we need to clearly articulate in our proposed 
and final rules designating critical habitat for each species how the 
essential features relate to the life-history and conservation needs of 
the species. This type of specificity will be in the individual 
proposed and final rules designating critical habitat for each species. 
As is our general practice, we will clearly lay out the features and 
how they relate to the needs of the species in each rule.
    (44) Comment: Several commenters asked us to clarify the 
distinction, if any, between features that support the life-history 
needs of the species and features that are essential to the 
conservation of the species.
    Our Response: Our definition of physical or biological features is 
the first step, and we do not assume that all features are essential. 
In many circumstances the features that support life-history needs of 
the species are the features that are essential to the conservation of 
the species. The features that are essential to the conservation of the 
species are those found in the appropriate quality, quantity, and 
spatial and temporal arrangements in the context of the life history, 
status, and conservation needs of the species. This varies according to 
the species. For example, for a small, endemic species the features 
that support the life-history needs may be essential themselves, but 
for a wide-ranging species what rises to the level of essential 
features may rely more on the quality, quantity, and arrangement of 
those features.
    (45) Comment: Several commenters sought an explanation for how the 
requisite physical and biological features would be identified, 
documented, and verified during the critical-habitat-designation 
process.
    Our Response: We use the best scientific data available to 
determine the life-history needs of the species. The essential physical 
or biological features support the life-history and conservation needs 
of the species. A description of the essential features for each 
species and how they relate to its life-history and conservation needs 
will be articulated in the proposed and final rules designating 
critical habitat for a particular species. This description of the 
essential features, as well as the designation that is based on them, 
will be available for public review and comment during the rulemaking 
process.
    (46) Comment: Several commenters stated that the description of the 
relevant features cannot be in broad terms, but must be specific enough 
to limit critical habitat to the most ``essential areas'' and help 
provide an understanding of what the species actually requires to 
return from the brink of extinction.
    Our Response: When evaluating occupied habitat, we agree that the 
statute requires us to determine which areas contain physical or 
biological features essential to the conservation of the species (that 
may require special management considerations or protection). In every 
proposed and final rule designating critical habitat for a particular 
species, we describe those features that we have determined to be 
essential and explain the basis for our determination. However, we 
respectfully disagree that broadly described features are necessarily 
inappropriate. The level of specificity in our description of the 
features is primarily determined by the state of the best scientific 
information available for that species. We will provide as much 
specificity as is appropriate in light of what is known about the 
species' habitat needs, while recognizing that the available science 
may still be evolving for that species. Where the available information 
is still evolving, it may not be possible or necessary to provide a 
high level of specificity, and it may frustrate the conservation 
purposes of the Act to attempt to do so. See Arizona Cattle Growers' 
Ass'n v. Kempthorne, 534 F. Supp. 2d 1013, 1025 n.2 (D. Ariz. 2008), 
aff'd sub nom. Arizona Cattle Growers' Ass'n v. Salazar, 606 F.3d 1160 
(9th Cir. 2010).
    Finally, we must disagree with the commenter's suggestion that in 
identifying essential features the Services must identify what the 
species' actually requires to return from ``the brink of extinction.'' 
Critical habitat is generally required for threatened species as well 
as endangered species. Moreover, the Services are not required to have 
developed a recovery plan prior to designating critical habitat for any 
species. Home Builders Ass'n of Northern Cal. v. U.S. Fish and Wildlife 
Service, 616 F.3d 983, 989-90 (9th Cir. 2010). Our determinations of 
which features are ``essential'' thus depend on an understanding of the 
species' habitat needs rather than on a specific projection of how the 
species could be recovered.
    (47) Comment: Several commenters stated that the plain language of 
the Act limits the scope of any designated area to those features 
essential to the species, and does not authorize the designation of 
areas that may include those subsidiary characteristics that are 
essential for the development of the features themselves.
    Our Response: We respectfully disagree and interpret the statutory 
language not to limit ``features'' to those habitat characteristics 
that make habitat immediately usable by the species. In other words, 
the physical or biological features referred to in the definition of 
``critical habitat'' can include features that allow for the periodic 
development of habitat characteristics immediately usable by the 
species. An interpretation of ``features'' that referred only to 
immediately usable habitat would render many essential areas ineligible 
for designation as critical habitat, thwarting Congress's intent that 
designation of critical habitat should contribute to species' 
conservation.

[[Page 7423]]

    We will use the best scientific data available to identify features 
essential to the conservation of the species and clearly identify how 
they relate to the life-history and conservation needs of the species. 
When considering what features are essential, it is sometimes necessary 
to allow for the dynamic nature of the habitat, such as successional 
stages of habitat, which could consist of old-growth habitat or habitat 
newly formed through disturbance events such as fire or flood events. 
Thus, the physical or biological features essential to the conservation 
of the species may include features that support the occurrence of 
ephemeral or dynamic habitat conditions. The example we gave in the 
proposed rule was a species that may require early-successional 
riparian vegetation in the Southwest to breed or feed. Such vegetation 
may exist only 5 to 15 years after a local flooding event. The 
necessary features, then, may include not only the suitable vegetation 
itself, but also the flooding events, topography, soil type, and flow 
regime, or a combination of these characteristics and the necessary 
amount of the characteristics that can result in the periodic 
occurrence of the suitable vegetation. The flooding event would not be 
a subsidiary characteristic as suggested by the commenter, but would 
itself be a feature necessary for the vegetation to return. So in this 
case, it would be a combination of features, flooding, and vegetation 
that would be necessary to the conservation of the species.
    (48) Comment: Several commenters, including two States, were 
concerned that designating critical habitat based on the presence of 
certain characteristics that may be necessary to eventually support the 
periodic occurrence of riparian vegetation, without evidence that the 
vegetation would actually develop, constitutes an impermissible 
reliance upon hope and speculation. They further stated that the 
Services must go through a separate inquiry determining why it is 
reasonably foreseeable to conclude that the potential critical habitat 
will develop the physical or biological features at some point in the 
future.
    Our Response: We will use the best scientific data available to 
support the identification of features essential to the conservation of 
the species and clearly identify how they relate to the life-history 
and conservation needs of the species. When considering what features 
are essential, it is sometimes necessary to allow for the dynamic 
nature of the habitat, such as successional stages of habitat, which 
could consist of old-growth habitat or habitat newly formed through 
disturbance events such as fire or flood events. This does not 
constitute reliance on mere hope or speculation but is based on an 
understanding of the relevant ecological processes. We also disagree 
with the characterization of this situation as involving ``potential 
critical habitat'' that ``will develop the physical or biological 
features at some point in the future.'' Properly understood, the 
essential features would currently exist in these areas, even though 
they may not be currently manifesting the shorter-term habitat 
conditions immediately usable by the species. Such areas may currently 
meet the definition of ``critical habitat'' and not be merely 
``potential critical habitat.''
    (49) Comment: Several commenters stated that the Services' position 
that ``most circumstances'' require ``special management'' is 
inconsistent with congressional intent to narrow the definition of 
``critical habitat'' to require a very careful analysis of what is 
actually needed for survival of the species. Several commenters, 
including two States, also indicated that the Services must continue to 
make the factual determination that special management is needed as 
required by the Act.
    Our Response: We make the determination and describe the special 
management considerations or protections that may be needed in the 
proposed and final rules designating critical habitat for each critical 
habitat area. However, it has been our experience that, in most 
circumstances, the physical or biological features essential to the 
conservation of endangered species may require special management 
considerations or protection in all areas in which they occur. This is 
particularly true for species that have significant habitat-based 
threats, which is the case for most of our listed species. The statute 
directs us to identify the essential physical or biological features 
which ``may require'' special management considerations or protection, 
a standard that suggests we should be cautious and protective. We do 
acknowledge that if in some areas the essential features clearly do not 
require special management considerations or protection, then that area 
does not meet this part (section 3(5)(A)(i)) of the definition of 
``critical habitat.'' However, we expect based on our experience with 
designating critical habitat that these circumstances will be rare. In 
our proposed and final critical habitat rules, we will continue to make 
factual determinations as to whether special management considerations 
or protection may be required.
    (50) Comment: Several States commented that the new interpretation 
of ``special management considerations or protection'' set out in the 
preamble appears to presume that areas covered by existing protection 
plans will actually be more likely to be designated as critical 
habitat, and could act as a disincentive to implementing voluntary pre-
designation conservation initiatives, in direct contravention to recent 
Services' policies attempting to incentivize voluntary conservation.
    Our Response: We respectfully disagree. We are directed by the Act 
to identify areas that meet the definition of ``critical habitat'' 
(i.e., occupied areas that contain the essential physical or biological 
features that may require special management considerations or 
protection and unoccupied areas that are essential for the conservation 
of a species) without regard to land ownership. We also make the 
determination and describe the special management considerations or 
protections that may be needed in the proposed and final rules for each 
critical habitat area. The consideration of whether features in an area 
may require special management considerations or protection occurs 
independent of whether any form of management or protection occurs in 
the area. This does not preclude the Services from considering the 
exclusion of these areas under section 4(b)(2) of the Act based on 
conservation programs, plans, and partnerships prior to issuing the 
final critical habitat rule.
    (51) Comment: Several commenters stated that the Services cannot 
designate critical habitat based on the general assertions that the 
area contains the essential physical or biological features. Instead, 
the Services must demonstrate that the relevant features are found 
within a specific area.
    Our Response: In the first part of the definition of ``critical 
habitat'' in the Act, we are required to identify specific areas within 
the geographical area occupied by the species at the time it is listed 
on which are found those physical or biological features essential to 
the conservation of the species and which may require special 
management considerations or protection. In our proposed and final 
critical habitat rules, we identify which features occur in the area, 
the basis on which we are identifying them as essential features, 
including how they provide for the life-history and conservation needs 
of the species, and whether they may require special management 
considerations or

[[Page 7424]]

protection. These rules will be available for public review and 
comment.
    (52) Comment: Several commenters suggested that we remove 
``principles of conservation biology'' from the definition of 
``physical and biological features.''
    Our Response: We respectfully disagree. The sentence ``Features may 
also be expressed in terms of relating to principles of conservation 
biology, such as patch size, distribution distances, and connectivity'' 
explains more clearly how we may identify the features. The principles 
of conservation biology are generally accepted among the scientific 
community and consistently used in species-at-risk status assessments 
and development of conservation measures and programs.
    (53) Comment: Several commenters requested that we add language 
delineating the area ``around'' the species occurrences, either by 
using a distance or a reference to the species' natural functions in 
the geographic area definition.
    Our Response: We are unable to determine a universal distance or a 
reference to the species' natural functions that would be applicable to 
all species. This analysis and determination is best left to the 
specific critical habitat rulemaking for a given species. In those 
proposed and final rules, we can be specific for each species based on 
its life-history needs and more precisely define the geographical area 
occupied by the species. The rules will be available for public review 
and comment.
    (54) Comment: Several commenters, including one State, indicated 
that the proposed Sec.  424.12(b)(2) and deletion of current Sec.  
424.12(e) would relieve the Services of any requirements that they 
justify the designation of unoccupied habitat by demonstrating the 
inadequacies of occupied habitat for the conservation of the species. 
They further stated that this was a major departure in the law 
regarding designation of critical habitat.
    Our Response: We respectfully disagree. The proposed rule clearly 
explains that the Act does not require the Services to first prove that 
the occupied areas are insufficient before considering unoccupied 
areas. The regulatory provision at 424.12(e) merely restated the 
requirement from the statutory definition in a different way. We will 
still explain based on the best scientific data available, why the 
unoccupied areas are essential for the conservation of the species.
    (55) Comment: Several commenters pointed out that we use ``no 
longer necessary'' in the new definition of ``conserve, conserving, and 
conservation'' and the words ``no longer appropriate'' in the 
definition of ``recovery'' in 50 CFR 402.02. The commenters asserted 
that these are two different standards and that we should pick one of 
them.
    Our Response: The words ``no longer necessary'' are used in the 
statutory definition of ``conserve, conserving, and conservation'' in 
the Act. The rule simply points out that the concept described in the 
statutory language is equivalent to ``recovery.'' That term is defined 
in Sec.  402.02, which we are not revising at this time.
    (56) Comment: Several commenters stated that the National Marine 
Fisheries Service's interpretation of the phrase ``which interbreeds 
when mature'' was upheld by the Ninth Circuit in Modesto Irr. Dist. v. 
Gutierrez, 619 F.3d 1024 (9th Cir. 2010), and that the Act also 
requires that a group of organisms must interbreed when mature to 
qualify as a distinct population segment (DPS), which is in contrast to 
the Services' interpretation of the phrase in the proposed rule.
    Our Response: We respectfully disagree that our interpretation of 
``interbreeds when mature'' is at odds with the ruling in Modesto 
Irrigation District. In that case, the Ninth Circuit did not hold that 
actual interbreeding among different populations is required in order 
to include such populations in a single DPS. To the contrary, the court 
made it clear that Congress did not intend to create a ``rigid 
limitation'' on the Services' discretion to define DPSs. On the 
``narrow issue'' of whether the ESA or the DPS Policy required that 
NMFS place interbreeding steelhead and rainbow trout in the same DPS, 
the court deferred to NMFS's judgment that there was no such 
requirement. Id. at 1037. While NMFS did state in the challenged rule 
that ``[t]he ESA requirement that a group of organisms must interbreed 
when mature to qualify as a DPS is a necessary but not exclusive 
condition'' (71 FR 834, 838 (Jan. 5, 2006)), nothing in the rule 
suggested that NMFS's position was that actual interbreeding among 
disparate populations was required, and that biological capacity to 
interbreed would not be sufficient.
    (57) Comment: Several commenters stated that the Services did in 
fact revise the regulations in our discussion of ``interbreeds when 
mature'' by inserting the phrase ``A distinct population segment 
``interbreeds when mature'' when it consists of members of the same 
species or subspecies in the wild that are capable of interbreeding 
when mature'' to the definition of a ``species.'' They further stated 
that this was an Administrative Procedure Act violation and that the 
phrase should be removed in the final rule.
    Our Response: The commenters are correct that we proposed to amend 
the definition of ``species.'' In the preamble we wrote, ``Finally, we 
explain our interpretation of the meaning of the phrase `interbreeds 
when mature,' which is found in the definition of `species.' . . . 
Although we are not proposing to revise the regulations at this time, 
we are using this notice to inform the public of our longstanding 
interpretation of this phrase.'' Our intent was to explain how we have 
interpreted the phrase, but by inadvertently including this 
interpretation in the regulatory language of the proposed rule, we in 
fact were proposing to change the definition of ``species'' to insert, 
``A distinct population segment `interbreeds when mature' when it 
consists of members of the same species or subspecies in the wild that 
are capable of interbreeding when mature.'' We have removed the 
proposed language from the definition of ``species'' in this final rule 
and left only the language in the preamble. The Services are not 
amending the definition.
    (58) Comment: A commenter suggested that the Services clarify the 
meaning of ``being considered by the Secretary'' in the definition of 
the term ``candidate.'' The commenter suggested that the final rule 
substitute the more narrow definition found in the FWS candidate 
species fact sheet, which states: ``Candidate species are plants and 
animals for which the U.S. Fish and Wildlife Service has sufficient 
information on their biological status and threats to propose them as 
endangered or threatened under the Endangered Species Act, but for 
which development of a proposed listing regulation is precluded by 
other higher priority listing activities.''
    Our Response: We agree with the commenter that the statement in the 
FWS candidate fact sheet is an appropriate meaning of the phrase 
``being considered by the Secretary'' found in the definition of 
candidate. We emphasize that we did not change the definition of 
``candidate'' in this regulation.

Criteria for Designating Critical Habitat

    (59) Comment: The Western Governors' Association requested that the 
Services provide a thorough, data-based explanation of the basis for 
the determination that areas outside the range occupied at the time of 
listing are or will be essential habitat.

[[Page 7425]]

    Our Response: Under section 3(5)(A)(ii) of the Act, to designate as 
critical habitat specific areas that are outside the geographical area 
occupied by the species at the time the species is listed, the Services 
must determine that the areas are essential for the conservation of the 
species. This determination must be based on the best scientific data 
available concerning the particular species and its conservation needs. 
When the Services propose to designate specific areas pursuant to 
section 3(5)(A)(ii), they have under the existing regulations and will 
under the revised regulations explain the basis for the determination, 
including the supporting data. Thus, the Services' explanation will be 
available for public comment.
    (60) Comment: Several commenters, including one State, were 
concerned that the essential areas in unoccupied areas may not even be 
suitable for the species and that this is an erroneous and unreasonable 
interpretation of an otherwise clear statutory statement and should be 
withdrawn.
    Our Response: Section 3(5)(A)(ii) of the Act expressly allows for 
the consideration and inclusion of unoccupied habitat in a critical 
habitat designation if such habitat is determined to be essential for 
the conservation of the subject species. These areas do not have to 
contain the physical or biological features and are not subject to a 
finding that they may require special management considerations or 
protection. This is in contrast to what is required under the first 
part of the definition of ``critical habitat'' (section 3(5)(A)(i) of 
the Act) for areas occupied at the time of listing.
    (61) Comment: Several commenters stated that the Services may only 
properly make a ``not prudent'' finding if there is specific 
information that increased poaching would result from designating 
critical habitat.
    Our Response: We respectfully disagree with the commenters' 
assertion. The current regulations (49 FR 38900; October 1, 1984, and 
at 50 CFR 424.12(a)(1)) allow for a determination that critical habitat 
is not prudent for a species if such designation would: (1) Increase 
the degree of threat to the species through the identification of 
critical habitat, or (2) not be beneficial to the species. The 
determination that critical habitat is not prudent for a listed species 
is uncommon, especially given that most species are listed, in part, 
because of impacts to their habitat or curtailment of their range. Most 
``not prudent'' findings have resulted from a determination that there 
would be increased harm or threats to a species through the 
identification of critical habitat. For example, if a species was 
highly prized for collection or trade, then identifying specific 
localities of the species could render it more vulnerable to collection 
and, therefore, further threaten it. However, in some circumstances, a 
species may be listed because of factors other than threats to its 
habitat or range, such as disease, and the species may be a habitat 
generalist. In such a case, on the basis of the existing and revised 
regulations, it is permissible to determine that critical habitat is 
not beneficial and, therefore, not prudent. It is also permissible to 
determine that a designation would not be beneficial if no areas meet 
the definition of ``critical habitat.''
    (62) Comment: Several commenters inquired about whether the 
Services would revise the regulations to provide greater flexibility in 
defining a greater breadth of circumstances where a determination can 
be made that the designation of critical habitat for a species is not 
beneficial to its conservation and, therefore, not prudent.
    Our Response: As noted above, it is permissible under the current 
and revised regulations to determine that designating critical habitat 
for a species is not beneficial and, therefore, not prudent. The text 
of these revised regulations further clarifies the non-exclusive list 
of factors the Services may consider in evaluating whether designating 
critical habitat is not beneficial. The inclusion of ``but not limited 
to'' to modify the statement ``the factors the Services may consider 
include'' allows for the consideration of alternative fact patterns 
where a determination that critical habitat is not beneficial would be 
appropriate. We think it is important to expressly reflect this 
regulatory flexibility in the revised regulations. Nonetheless, based 
on the Services' history of implementing critical habitat, we 
anticipate that making a not-prudent determination on any fact pattern 
will be rare.
    (63) Comment: One State commented that the Services dropped the 
word ``probable'' from the revised Sec.  424.12(a) when talking about 
economic impacts and that the word should be retained in the final 
rule.
    Our Response: We agree and have retained the word ``probable'' in 
this final rule. It is consistent with the revised final regulation in 
50 CFR 424.19 (78 FR 53058) and our draft policy on exclusions under 
section 4(b)(2) of the Act. We note that in this context the term 
``probable'' means reasonably likely to occur.
    (64) Comment: Several commenters recommended adding after the word 
``threat'' in the second sentence to Sec.  424.12(a)(1)(ii), the words 
``sufficient to warrant listing the species as threatened or 
endangered.''
    Our Response: While we agree with the commenters' intent, we find 
that adding the phrase would be redundant because we would only be 
making a determination as to whether critical habitat is prudent if the 
species was either being proposed for listing simultaneously or is 
already listed.
    (65) Comment: Several commenters thought the Services should simply 
delete Sec.  424.12(a)(1)(ii) instead of expanding it. They further 
stated that the Act does not require that a species currently be 
threatened by habitat loss before critical habitat is designated and 
protected, and the spirit of the Act would not be served by the 
imposition of such a requirement by regulation.
    Our Response: Critical habitat is a conservation tool under the Act 
that can provide for the regulatory protection of a species' habitat. 
The current regulations and the proposed revisions do not establish a 
requirement that a species be threatened by the modification, 
fragmentation, or curtailment of its range for critical habitat to be 
beneficial and, therefore, prudent to designate. However, the 
regulation and revisions establish a framework whereby if a species is 
listed under the Act and it is determined through that process that its 
habitat is not limited or threatened by destruction, modification, or 
fragmentation, then it may not be beneficial or prudent to designate 
critical habitat. While this provision is intended to reduce the burden 
of regulation in rare circumstances in which designating critical 
habitat does not contribute to conserving the species, the Services 
recognize the value of critical habitat as a conservation tool and 
expect to designate it in most cases.
    (66) Comment: Several commenters stated that Sec.  424.12(a)(2) is 
not consistent with the plain meaning of the Act and should be deleted 
from the final rule. They stated the proposed minor word changes did 
not improve the situation.
    Our Response: The minor word changes to Sec.  424.12(a)(2) are 
meant to make the language more consistent with the language in the 
Act. This section is necessary to inform the public as to the 
circumstances in which the Services will make a not-determinable 
finding on critical habitat and thereby invoking the 1-year extension 
of section 4(b)(6)(C)(ii) of the Act. 16 U.S.C. 1533(b)(6)(C)(ii).

[[Page 7426]]

    (67) Comment: A commenter stated that when the Services deem 
critical habitat as not determinable due to a lack of data for habitat 
analyses or lack of knowledge on biological needs of the species, the 
Services should regularly check for new data and/or make efforts to 
collect necessary data and move forward with critical habitat 
designations. One State also commented that critical habitat 
designations should only be made based on the best available scientific 
data and information, and in instances where data or information is 
lacking, the Services have an obligation to delay a designation until 
such time that sufficient information is acquired.
    Our Response: Finding that critical habitat is not determinable 
only invokes a 1-year extension of the deadline for finalizing a 
critical habitat designation under section 4(b)(6)(C)(ii) of the Act. 
16 U.S.C. 1533(b)(6)(C)(ii). At the conclusion of the year, the 
Services must move forward with the designation and have no authority 
under the Act to further delay designation (unless we determine that 
designation is not prudent). We agree that critical habitat 
designations must only be made based on the best scientific data 
available as required by the Act. If we initially do not have enough 
data to make a critical habitat determination, then we can invoke the 
1-year extension allowed under the Act. The Services use that time to 
gather additional data. At the end of the 1-year extension, the 
Services must use the best scientific data available to make the 
critical habitat determination.
    (68) Comment: One State suggested that climate change is more 
appropriately addressed during a 5-year status review and the critical 
habitat revision process than trying to attempt to accommodate future 
critical habitat by predicting areas necessary to support the species' 
recovery. It further asserted that the Services' proposed authority to 
designate areas that are currently unoccupied and which are not now 
necessary to support the species' recovery, but may eventually become 
necessary, is a vast expansion of the critical habitat program and 
contrary to the focus in the Act on current habitat conditions.
    Our Response: We agree that 5-year status reviews and the critical 
habitat revision process can play important roles regarding the 
conservation needs of a species in response to habitat changes 
resulting from climate change. However, the statute as written allows 
for sufficient flexibility to address the effects of climate change in 
a critical habitat designation, and, therefore, the clarifications 
provided in our proposal and this final rule do not expand the 
Services' authority. There have been specific circumstances, as 
discussed in our proposal, where data have been available showing the 
shift in habitat use by a species in response to the effects of climate 
change. In those cases where the best scientific data available 
indicate that a species may be shifting habitats or habitat use, then 
it is permissible to include specific areas accommodating these changes 
in a designation, provided that the Services can explain why the areas 
meet the definition of ``critical habitat.'' Although some such 
instances are based on reasonable predictions of how habitat will be 
used by the species in the future, they are based on determinations 
that the areas are currently essential to the species. In other words, 
we may find that an unoccupied area is currently ``essential for the 
conservation'' even though the functions the habitat is expected to 
provide may not be used by the species until a point in the foreseeable 
future. The data and rationale on which such a designation is based 
will be clearly articulated in our proposed rule designating critical 
habitat. The Services will consider whether habitat is occupied or 
unoccupied when determining whether to designate it as critical habitat 
and use the best available scientific data on a case-by-case basis 
regarding the current and future suitability of such habitat for 
recovery of the species, and when developing conservation measures.
    (69) Comment: Several commenters requested clarification of new 
Sec.  424.12(e) with regard to the differences in the way the Services 
handle designation of critical habitat for species listed prior to the 
1982 amendments to the Act versus species listed after the 1982 
amendments.
    Our Response: If the Services designate critical habitat for 
species listed prior to the 1982 amendments, the designation is 
procedurally treated like a revision of existing critical habitat even 
if critical habitat was never designated. Thus, the Services have 
additional options at the final rule stage with regard to a proposal to 
designate critical habitat for those species listed prior to 1982 that 
they do not have when proposing to designate habitat for other species. 
These include an option to make a finding that the revision ``should 
not be made'' and to extend the 12-month deadline by an additional 
period of up to 6 months if there is substantial disagreement regarding 
the sufficiency or accuracy of available data (see 16 U.S.C. 
1533(b)(6)(B)(i)).
    (70) Comment: Several commenters, including two States, indicated 
that removing references to ``primary constituent elements'' 
dramatically and unnecessarily expands the scope of critical habitat 
and confuses instead of clarifies critical habitat designation, leading 
to more litigation.
    Our Response: Removing references to ``primary constituent 
elements'' from the regulation will not result in expansion of the 
scope of critical habitat. Removing this phrase is not intended to 
substantively alter anything about the designation of critical habitat, 
but to eliminate redundancy in how we describe the physical or 
biological features. The phrase ``primary constituent element'' is not 
found in the Act and the regulations have never been clear as to how 
primary constituent elements relate to or are distinct from physical or 
biological features essential to the conservation of the species, which 
is the phrase used in the Act. In fact, the removal of the phrase 
``primary constituent elements'' will alleviate the tension caused by 
trying to understand the relationship between the phrases. The 
specificity of the primary constituent elements that has been discussed 
in previous designations will now be discussed in the descriptions of 
the physical or biological features essential to the conservation of 
the species.
    (71) Comment: Several commenters including several States were 
opposed to elimination of Sec.  424.12(e) as this section is necessary 
and intentionally limiting and is an accurate implementation of the 
statutory definition and Congressional intent. Several commenters also 
questioned that when the Services promulgated Sec.  424.12(e) in 1980, 
that we explained in the preamble to that rule that the limitation in 
Sec.  424.12(e) was intended to ``implement the statutory requirement'' 
that unoccupied areas may be designated ``only if necessary to ensure 
the conservation of the species.'' The Services do not address this 
prior interpretation at all, or explain why a rule that it once enacted 
as necessary to implement a statutory requirement is now unnecessary.
    Our Response: We respectfully disagree. Section 424.12(e) did not 
allow us to designate unoccupied areas unless a designation limited to 
its present range (occupied) would be inadequate to ensure the 
conservation of the species. As we stated in the proposed rule, there 
is no suggestion in the legislative history that the Services were 
expected to exhaust occupied habitat before considering whether any 
unoccupied areas may be essential.

[[Page 7427]]

Further, section 3(5)(A) of the Act expressly allows for the 
consideration and inclusion of unoccupied habitat in a critical habitat 
designation if such habitat is determined to be essential for the 
conservation of the subject species. There is no specific language in 
the Act that requires the Services to first prove that the inclusion of 
all occupied areas in a designation are insufficient to conserve the 
species before considering unoccupied areas. However, the existing 
implementing regulations state that such unoccupied habitat could only 
be considered if a determination was made that the Service(s) could not 
recover the species with the inclusion of only the occupied habitat.
    We have learned from years of implementing the critical habitat 
provisions of the Act that often a rigid step-wise approach, i.e., 
first designating all occupied areas that meet the definition of 
``critical habitat'' (assuming that no unoccupied habitat is 
designated) and then, only if that is not enough, designating essential 
unoccupied habitat, does not necessarily serve the best conservation 
strategy for the species and in some circumstances may result in a 
designation that is geographically larger, but less effective as a 
conservation tool. Our proposed change will allow us to consider the 
inclusion of occupied and unoccupied areas in a critical habitat 
designation following at minimum a general conservation strategy for 
the species. In some cases, we have and may continue to find, that the 
inclusion of all occupied habitat in a designation does not support the 
best conservation strategy for a species. We expect that the concurrent 
evaluation of occupied and unoccupied areas for a critical habitat 
designation will allow us to develop more precise and deliberate 
designations that can serve as more effective conservation tools. 
Additionally, there is no specific language in the Act that requires 
the Services to first prove that the inclusion of all occupied areas in 
a designation are insufficient to conserve the species before 
considering unoccupied areas. The statutory language is sufficiently 
clear that it does not need explanation in the revised regulation, and, 
moreover, to the extent that the 1980 regulation language differs from 
the statutory language, it does not add any clarity.
    (72) Comment: Several commenters, including one State, disagreed 
that unoccupied areas need not have the features essential to the 
conservation of the species and that the Services propose to unlawfully 
write this statutory requirement out of the Act. The State also pointed 
out that the Services' current position on this issue is distinctly 
contrary to the position the Services took in 1984 when the existing 
regulations were adopted.
    Our Response: Under the second part of the definition of ``critical 
habitat'' in the Act (section 3(5)(A)(ii)), the Services are to 
identify specific areas outside the geographical area occupied by the 
species, at the time it is listed in accordance with the provisions of 
section 4 of the Act, upon a determination by the Secretary that such 
areas are essential for the conservation of the species. In contrast to 
section 3(5)(A)(i), this provision does not mention physical or 
biological features, much less require that the specific areas contain 
the physical or biological features essential to the conservation of 
the species. These are two clearly distinct provisions. The unoccupied 
areas do not have to presently contain any of the physical or 
biological features, which is not a change from the way we have been 
designating unoccupied critical habitat (see, e.g., Markle Interests v. 
USFWS, 40 F. Supp. 3d 744 (E.D. La. 2014)).
    (73) Comment: One State recommended that the Services develop a 
policy or metric to determine whether a particular area should be 
designated as critical habitat in unoccupied areas.
    Our Response: This final rule explains the Services' general 
parameters for designating critical habitat. The details of why a 
specific area is determined to be essential to the conservation of the 
species will in part be directed by any generalized conservation 
strategy developed for the species, and clearly articulated in our 
proposed and final rules designating critical habitat. That 
determination is a fact-specific analysis and is based on the best 
available scientific data for the species and its conservation needs. 
The proposed rule for each critical habitat designation will be subject 
to public review and comment.
    (74) Comment: A commenter suggested that the Services designate 
enough critical habitat at the time of listing to ensure that a species 
can recover.
    Our Response: In evaluating which areas qualify as critical habitat 
and specific areas finalized (subject to section 4(b)(2) exclusions, 
see final policy published elsewhere in today's Federal Register), we 
follow the statutory requirements to identify those occupied areas that 
contain the physical or biological features essential to the species' 
conservation that may require special management considerations or 
protection and any unoccupied areas that we determine to be essential 
for the species' conservation. Designation of critical habitat is one 
important tool that contributes to recovery, but a critical habitat 
designation alone may not be sufficient to achieve recovery. Indeed, 
given the limited regulatory role of a critical habitat designation 
(i.e., through section 7's mandate that Federal agencies avoid 
destruction or adverse modification of critical habitat, see final rule 
published elsewhere in today's Federal Register), it is generally not 
possible to look to a critical habitat designation alone to ensure 
recovery. Also, we must designate critical habitat according to 
mandatory timeframes, very often prior to development of a formal 
recovery plan. See Home Builders Ass'n of Northern Cal. v. U.S. Fish 
and Wildlife Service, 616 F.3d 983, 989-90 (9th Cir. 2010). However, 
although a critical habitat designation will not necessarily ensure 
recovery, it will further recovery because the Services base the 
designation on the best available scientific information about the 
species' habitat needs at the time of designation. The best available 
information will include any generalized conservation strategy or 
criteria that may have been developed for the species in consultation 
with staff working in recovery planning and implementation to ensure 
collaboration, consistency, and efficiency as the Services work with 
the public and partners to recover a listed species.
    (75) Comment: A commenter stated that the proposed rule clarifies 
that the Services have the discretion to designate critical habitat for 
species listed before 1978, but does not specify when that discretion 
would be used. The commenter requested that the Services identify 
guidelines or standards for judging when to designate critical habitat 
for pre-1978 species.
    Our Response: Whether to exercise discretion to designate critical 
habitat for species listed prior to 1978 is a case-specific 
determination dependent on the conservation needs of the species, 
scientific data available, and the resources available for additional 
rulemaking. Guidelines on this point could limit Secretarial discretion 
and may not allow for sufficient flexibility in furthering the 
conservation of a species.
    (76) Comment: Several commenters were concerned that the Services 
must commit to using the best scientific data available when 
designating unoccupied areas as critical habitat.
    Our Response: We are mandated by the Act to use (and are committed 
to using) the best scientific data available in determining any 
specific areas as critical habitat, regardless of occupancy.

[[Page 7428]]

    (77) Comment: Several Tribes stated that while the Services readily 
acknowledge in the proposal their responsibility to communicate 
meaningfully with recognized Federal Tribes on a government-to-
government basis, the proposed revision does nothing to clarify how the 
Services will carry out this responsibility.
    Our Response: These revised regulations set forth our general 
practice for designating critical habitat, clarify definitions and 
phrases, and in general align the regulations with the statute. The 
revised regulations are not intended to be prescriptive in how the 
Services will implement the provisions or coordinate with federally 
recognized Tribes that are potentially affected. However, the Services 
are committed to communicate and coordinate meaningfully and 
effectively with federally recognized Tribes concerning actions under 
the ESA, including the development and implementation of critical 
habitat for species that may occur on their lands. We rely on the 
requirements of S.O. 3206 to provide the guidance on how the Services 
will carry out this responsibility. We have often found that the best 
and most meaningful coordination and collaboration, including 
fulfilling our responsibilities under S.O. 3206, occurs between our 
Regional and field offices and a specific Tribe on a particular 
species.
    (78) Comment: Several commenters were opposed to the inclusion of 
the proposed Sec.  424.12(g), saying the Act makes no distinction 
between foreign and domestic species and requires that all listed 
species receive critical habitat unless doing so is not prudent or 
determinable.
    Our Response: We respectfully disagree. Subsection (g) is a 
continuation of existing subsection (h), which has long codified the 
Services' understanding that critical habitat should not be designated 
outside of areas under United States jurisdiction. This interpretation 
is well supported. The Act makes a distinction between coordination 
with and implementation of the provisions of the ESA between States and 
local jurisdictions within the United States versus with foreign 
countries. Section 4(b)(1)(A), which deals with listing species, 
provides that the Secretary shall consult, as appropriate, not only 
with affected States, but also, in cooperation with the Secretary of 
State, with the country or countries in which the species is normally 
found. In contrast, section 7 of the ESA does not include a requirement 
to consult with foreign governments. Further, section 8(b)(1) states 
that ``the Secretary, through the Secretary of State, shall encourage--
(1) foreign countries to provide for the conservation of fish or 
wildlife and plants including endangered species and threatened species 
listed pursuant to section 4.'' It is clear that Congress understood 
the distinction between implementing the ESA within the jurisdiction of 
the United States and implementing the ESA within the jurisdiction of 
foreign countries. It then follows that since Congress did not 
explicitly state that critical habitat shall be designated in foreign 
countries or that the Secretary consult, as appropriate, with foreign 
countries on a designation of critical habitat, then the designation of 
critical habitat is limited to lands within the jurisdiction of the 
United States.
    Justice Stevens approved of the Services' conclusion in his 
concurrence in Lujan v. Defenders of Wildlife, 504 U.S. 555 (1992). 
There, he favorably noted the Service's longstanding interpretation of 
the limitation of critical habitat designations to areas within the 
jurisdiction of the United States:

    The Secretary of the Interior and the Secretary of Commerce have 
consistently taken the position that they need not designate 
critical habitat in foreign countries. See 42 FR 4869 (1977) 
(initial regulations of the Fish and Wildlife Service and the 
National Marine Fisheries Service on behalf of the Secretary of the 
Interior and the Secretary of Commerce). Consequently, neither 
Secretary interprets Sec.  7(a)(2) to require federal agencies to 
engage in consultations to ensure that their actions in foreign 
countries will not adversely affect the critical habitat of 
endangered or threatened species.
    That interpretation is sound. . . .

Id. at 587 (Stevens, J., concurring).
    (79) Comment: One State requested that the Services include a new 
Sec.  424.12(e) that requires that designation will be made after 
consultation with the affected States. It would read, ``In designating 
any area as critical habitat, the Secretary shall consult with affected 
States (those in which the proposed critical habitat is located or 
those that may be affected by the designation of the habitat) prior to 
completing the designation, and the fact of and finding of such 
consultation shall be addressed in the final rulemaking for the 
designation.''
    Our Response: The suggested new Sec.  424.12(e) is not necessary 
because section 4(b)(5)(A)(ii) of the Act requires the Secretary to 
give actual notice of the proposed regulation (including the complete 
text of the regulation) to the State agency in each State in which the 
species is believed to occur, and to each county or equivalent 
jurisdiction in which the species is believed to occur, and invite the 
comment of such agency, and each such jurisdiction. Further, section 
4(i) of the Act requires the Secretary to provide a written 
justification for adopting regulations in conflict with the agency's 
comments or for failing to adopt a regulation as requested in a State 
petition. In addition to these requirements, the Services are committed 
to continuing to work with the States early in the process to ensure 
that we are using the best scientific data available.
    (80) Comment: One State requested clarification on the application 
of this regulation to critical habitat designations that are currently 
under way, but not yet finalized.
    Our Response: As indicated in DATES above, although effective 30 
days from the date of publication, the revised version of Sec.  424.12 
will apply only to rulemakings for which the proposed rule is published 
after that date. Thus, the prior version of Sec.  424.12 will continue 
to apply to any rulemakings for which a proposed rule was published 
before that date. However, because many of the revisions merely codify 
or explain our existing practices and interpretations, we may 
immediately refer to and act consistent with the amended language of 
Sec.  424.12 in final rules to which the prior version applies.
    (81) Comment: Several commenters objected to the Services' 
determination that a regulatory flexibility analysis is not required 
for this regulation, stating the regulated community is affected by 
this regulation.
    Our Response: We respectfully disagree. We interpret the Regulatory 
Flexibility Act, as amended, to require that Federal agencies evaluate 
the potential incremental impacts of rulemaking only on those entities 
directly regulated by the rulemaking itself and, therefore, not on 
indirectly regulated entities. Recent case law supports this 
interpretation (https://www.sba.gov/sites/default/files/rfaguide_0512_0.pdf, pages 22-23). NMFS and FWS are the only entities 
that are directly affected by this rule because we are the only 
entities that designate critical habitat, and this rule pertains to the 
procedures for carrying out those designations. No external entities, 
including any small businesses, small organizations, or small 
governments, will experience any direct economic impacts from this 
rule.
    We understand that there is considerable confusion as to how these 
revisions to the regulation will change the process for designating 
critical

[[Page 7429]]

habitat, with many thinking it will greatly expand our designations and 
provide less clarity to the process. We went to great effort in our 
proposal and further in this final rule to explain that revised 
regulations will not result in any significant deviation from how the 
two agencies have been designating critical habitat. Our intent is to 
codify what we have been doing for many years and provide common-sense 
revisions based on lessons learned and relevant case law. It is our 
expectation that these revisions will allow us to develop more precise 
and deliberate designations that can serve as more effective 
conservation tools, focusing conservation resources where needed and 
minimizing regulatory burdens where not necessary. As a consequence, we 
find, as iterated above, that NMFS and FWS are the only entities 
directly regulated by these revisions and that an RFA analysis is not 
required.
    (82) Comment: We received several comments that the proposed 
revised regulations constituted a major Federal action because they 
will result in significant socioeconomic consequences and these impacts 
must be analyzed under the National Environmental Policy Act of 1969 
(NEPA).
    Our Response: As detailed in the REQUIRED DETERMINATIONS section 
below, we have determined that this action qualifies for a categorical 
exclusion under both DOI and NOAA governing procedures.

Final Amendments to Regulations Discussion of Changes to Part 424

    This final rule revises 50 CFR 424.01, 424.02, and 424.12 (except 
for paragraph (c)) to clarify the procedures and criteria used for 
designating critical habitat, addressing in particular several key 
issues that have been subject to frequent litigation.
    In finalizing the specific changes to the regulations that follow, 
and setting out the accompanying clarifying discussion in this 
preamble, the Services are establishing prospective standards only. As 
indicated in DATES above, although effective 30 days from the date of 
publication, the revised version of Sec.  424.12 will apply only to 
rulemakings for which the proposed rule is published after that date. 
Thus, the prior version of Sec.  424.12 will continue to apply to any 
rulemakings for which a proposed rule was published before that date. 
However, because many of the revisions merely codify or explain our 
existing practices and interpretations, we may immediately refer to and 
act consistent with the amended language of Sec.  424.12 in final rules 
to which the prior version applies. Nothing in these final revised 
regulations is intended to require that any previously completed 
critical habitat designation must be reevaluated on this basis.

Section 424.01 Scope and Purpose

    We are making minor revisions to this section to update language 
and terminology. The first sentence in Sec.  424.01(a) is being revised 
to remove reference to critical habitat being designated or revised 
only ``where appropriate.'' This wording implied a greater flexibility 
regarding whether to designate critical habitat than is correct. 
Circumstances in which we determine critical habitat designation is not 
prudent are rare. Therefore, the new language removes the phrase 
``where appropriate.'' Other revisions to this section are minor word 
changes to use more plain language or track the statutory language.

Section 424.02 Definitions

    This section of the regulations defines terms used in the context 
of section 4 of the Act. We are making revisions to Sec.  424.02 to 
update it to current formatting guidelines, to revise several 
definitions related to critical habitat, to delete definitions that are 
redundant with statutory definitions, and to add two newly defined 
terms. Section 424.02 is currently organized with letters as paragraph 
designation for each term (e.g., Sec.  424.02(b) Candidate). The Office 
of the Federal Register now recommends setting out definitions in the 
CFR without paragraph designations. We propose to revise the formatting 
of the entire section accordingly. Discussion of the revised 
definitions and newly defined terms follows. We note where these final 
revisions differ from those set out in the proposed rule.
    We note that, although revising the formatting of the section 
requires that the entirety of the section be restated in the final-
amended-regulation section, we are not at this time revisiting the text 
of those existing definitions that we are not specifically revising, 
including those that do not directly relate to designating critical 
habitat. In particular, we are not in this rulemaking amending the 
definitions of ``plant,'' ``wildlife,'' or ``fish and wildlife'' to 
reflect changes in taxonomy since the ESA was enacted in 1973. In 1973, 
only the Animal and Plant Kingdoms of life were universally recognized 
by science, and all living things were considered to be members of one 
of these kingdoms. Thus, at enactment, the ESA applied to all living 
things. Advances in taxonomy have subsequently split additional 
kingdoms from these two. Any species that was considered to be a member 
of the Animal or Plant Kingdoms in 1973 will continue to be treated as 
such for purposes of the administration of the Act regardless of any 
subsequent changes in taxonomy. We may address this issue in a future 
rulemaking relating to making listing determinations (as opposed to 
designating critical habitat). In the meantime, the republication of 
these definitions here should not be viewed as an agency determination 
that these definitions reflect the scope of the Act in light of our 
current understanding of taxonomy.
    The current regulations include a definition for ``Conservation, 
conserve, and conserving.'' We are revising the title of this entry to 
``Conserve, conserving, and conservation,'' changing the order of the 
words to conform to the statute. Additionally, we are revising the 
first sentence of the definition to include the phrase ``i.e., the 
species is recovered'' to clarify the link between conservation and 
recovery of the species. The statutory definition of ``conserve, 
conserving, and conservation'' is ``to use and the use of all methods 
and procedures that are necessary to bring any endangered or threatened 
species to the point at which measures provided pursuant to the Act are 
no longer necessary.'' This is the same concept as the definition of 
``recovery'' found in Sec.  402.02: ``improvement in the status of 
listed species to the point at which listing is no longer 
appropriate.'' The Services, therefore, view ``conserve, conserving, 
and conservation'' as a process culminating at the point at which a 
species is recovered.
    We are deleting definitions for ``critical habitat,'' ``endangered 
species,'' ``plant,'' ``Secretary,'' ``State Agency,'' and ``threatened 
species'' because these terms are defined in the Act and the existing 
regulatory definitions do not add meaning to the terms.
    We also define the previously undefined term ``geographical area 
occupied by the species'' as: ``the geographical area which may 
generally be delineated around the species' occurrences, as determined 
by the Secretary (i.e., range). Such areas may include those areas used 
throughout all or part of the species' life cycle, even if not used on 
a regular basis (e.g., migratory corridors, seasonal habitats, and 
habitats used periodically, but not solely by vagrant individuals).'' 
This term appears in the definition of ``critical habitat'' found in 
section 3(5)(A)(i) and (ii) of the Act, but is not defined in the Act 
or in our current regulations. The inclusion of this new

[[Page 7430]]

regulatory definition reflects the Services' efforts to clarify the 
critical-habitat-designation process.
    The definition of ``critical habitat'' in the Act has two parts, 
section 3(5)(A)(i) and (ii), which establish two distinct categories of 
critical habitat, based on species occupancy in an area at the time of 
listing. Therefore, to identify specific areas to designate as critical 
habitat, we must first determine what area constitutes the 
``geographical area occupied by the species at the time of listing,'' 
which is the language used in the Act. The scale of this area is likely 
to be larger than the specific areas that would then be analyzed for 
potential designation under section 3(5)(A)(i). This is because the 
first part of the critical habitat definition in the Act directs the 
Services to identify ``specific areas within'' the geographical area 
occupied by the species at time of listing. This intentional choice to 
use more narrow terminology alongside broader terminology suggests that 
the ``geographical area'' was expected most often to be a larger area 
that could encompass multiple ``specific areas.'' Thus, we find the 
statutory language supports the interpretation of equating the 
geographical area occupied by the species to the wider area around the 
species' occurrences at the time of listing. A species' occurrence is a 
particular location in which members of the species are found 
throughout all or part of their life cycle. The geographic area 
occupied by the species is thus the broader, coarser-scale area that 
encompasses the occurrences, and is what is often referred to as the 
``range'' of the species.
    In the Act, the term ``geographical area occupied by the species'' 
is further modified by the clause ``at the time it is listed.'' 
However, if critical habitat is being designated or revised several 
years after the species was listed, it can be difficult to discern what 
was occupied at the time of listing. The known distribution of a 
species can change after listing for many reasons, such as discovery of 
additional localities, extirpation of populations, or emigration of 
individuals to new areas. In many cases, information concerning a 
species' distribution, particularly on private lands, is limited as 
surveys are not routinely carried out on private lands unless performed 
as part of an environmental analysis for a particular development 
proposal. Even then, such surveys typically focus on listed rather than 
unlisted species, so our knowledge of a species' distribution at the 
time of listing in these areas is often limited and the information in 
our listing rule may not detail all areas occupied by the species at 
that time.
    Thus, while some of these changes in a species' known distribution 
reflect changes in the actual distribution of the species, some reflect 
only changes in the quality of our information concerning distribution. 
In these circumstances, the determination of which geographic areas 
were occupied at the time of listing may include data developed since 
the species was listed. This interpretation was supported by a recent 
court decision, Otay Mesa Property L.P. v. DOI, 714 F. Supp. 2d 73 
(D.D.C. 2010), rev'd on other grounds, 646 F.3d 914 (D.C. Cir. 2011) 
(San Diego fairy shrimp). In that decision, the judge noted that the 
clause ``occupied at the time of listing'' allows FWS to make a post-
listing determination of occupancy based on the currently known 
distribution of the species in some circumstances. Although the D.C. 
Circuit disagreed with the district court that the record contained 
sufficient data to support the FWS' determination of occupancy in that 
case, the D.C. Circuit did not express disagreement with (or otherwise 
address) the district court's underlying conclusion that the Act allows 
FWS to make a post-listing determination of occupancy if based on 
adequate data. The FWS acknowledges that to make a post-listing 
determination of occupancy we must distinguish between actual changes 
to species occupancy and changes in available information. For 
succinctness, herein and elsewhere we refer to areas as ``occupied'' 
when we mean ``occupied at the time of listing.''
    The second sentence of the definition for ``geographical area 
occupied by the species'' clarifies that the meaning of the term 
``occupied'' includes specific areas that are used only periodically or 
temporarily by a listed species during some portion of its life 
history, and is not limited to those areas where the listed species may 
be found more or less continuously. Areas of periodic use may include, 
for example, breeding areas, foraging areas, and migratory corridors. 
The Ninth Circuit recently supported this interpretation by FWS, 
holding that a determination that a species was likely to be 
temporarily present in the areas designated as critical habitat was a 
sufficient basis for determining those areas to be occupied, even if 
the species was not continuously present. Arizona Cattle Growers' 
Assoc. v. Salazar, 606 F.3d 1160 (9th Cir. 2010) (Mexican spotted owl).
    Nonetheless, periodic use of an area does not include use of 
habitat in that area by vagrant individuals of the species who wander 
far from the known range of the species. Occupancy by the listed 
species must be based on evidence of regular periodic use by the listed 
species during some portion of the listed species' life history. 
However, because some species are difficult to survey or we may 
otherwise have incomplete survey information, the Services will rely on 
the best available scientific data, which may in some cases include 
indirect or circumstantial evidence, to determine occupancy. We further 
note that occupancy does not depend on identifiable presence of adult 
organisms. For example, periodical cicadas occupy their range even 
though adults are only present for 1 month every 13 or 17 years. 
Similarly, the presence (or reasonably determined presence) of eggs or 
cysts of fairy shrimp or seed banks of plants constitute occupancy even 
when mature individuals are not present.
    We also finalize a definition for the term ``physical or biological 
features.'' This phrase is used in the statutory definition of 
``critical habitat'' to assist in identifying the specific areas within 
the entire geographical area occupied by the species that can be 
considered for designation as critical habitat. We define ``physical or 
biological features'' as ``the features that support the life-history 
needs of the species, including but not limited to water 
characteristics, soil type, geological features, sites, prey, 
vegetation, symbiotic species, or other features. A feature may be a 
single habitat characteristic, or a more complex combination of habitat 
characteristics. Features may include habitat characteristics that 
support ephemeral or dynamic habitat conditions. Features may also be 
expressed in terms relating to principles of conservation biology, such 
as patch size, distribution distances, and connectivity.''
    The definition clarifies that physical and biological features can 
be the features that support the occurrence of ephemeral or dynamic 
habitat conditions. For example, a species may require early-
successional riparian vegetation in the Southwest to breed or feed. 
Such vegetation may exist only 5 to 15 years after a local flooding 
event. The necessary features, then, may include not only the suitable 
vegetation itself, but also the flooding events, topography, soil type, 
and flow regime, or a combination of these characteristics and the 
necessary amount of the characteristics that can result in the periodic 
occurrence of the suitable vegetation. Thus, the Services could 
conclude that essential physical or biological features exist in a 
specific area even in the temporary absence of

[[Page 7431]]

suitable vegetation, and could designate such an area as critical 
habitat if all of the other applicable requirements were met and if 
there were documented occurrences of the particular habitat type in the 
area and a reasonable expectation of that habitat occurring again.
    In Cape Hatteras Access Preservation Alliance v. DOI, 344 F. Supp. 
2d 108, 123 n.4 (D.D.C. 2004), the court rejected FWS' designation for 
the piping plover as including lands that did not currently contain the 
features defined by FWS, but noted that it was not addressing ``whether 
dynamic land capable of supporting plover habitat can itself be one of 
the `physical or biological features' essential to conservation.'' The 
new definition for ``physical or biological features'' clarifies that 
features can be dynamic or ephemeral habitat characteristics. However, 
an area within the geographical area occupied by the species, 
containing habitat that is not ephemeral by nature but that has been 
degraded in some way, must have one or more of the physical or 
biological features at the time of designation.
    Having defined ``physical or biological features,'' we are also 
removing the term ``primary constituent element'' and all references to 
it from the regulations in Sec.  424.12. As with all other aspects of 
these revisions, this will apply only to future critical habitat 
designations and is further explained below in the discussion of the 
changes to Sec.  424.12, where the term is currently used.
    We are also revising the definition of ``special management 
considerations or protection'' which is found in Sec.  424.02. Here we 
remove the phrase ``of the environment'' from the current regulation. 
This phrase is not used in this context elsewhere in the regulations or 
the Act and, therefore, may create ambiguity. We also insert the words 
``essential to'' to conform to the language of the Act.
    In determining whether an area has essential features that may 
require special management considerations or protection, the Services 
do not base their decision on whether management is currently in place 
or whether that management is adequate. FWS formerly took the position 
that special management considerations or protection was required only 
if whatever management was in place was inadequate and that additional 
special management was needed. This position was rejected by the court 
in Center for Biological Diversity v. Norton, 240 F. Supp. 2d 1090 (D. 
Ariz. 2003) (Mexican spotted owl), the only court to address this 
issue. The Services agree with the conclusion of the court on this 
point--it is incorrect to read the statute as asking whether additional 
special management considerations or protection may be required. The 
evaluation of whether features in an area may require special 
management considerations or protection occurs independent of whether 
any form of management or protection occurs in the area.
    We expect that, in most circumstances, the physical or biological 
features essential to the conservation of endangered species may 
require special management in all areas in which they occur, 
particularly for species that have significant habitat-based threats. 
However, if in some areas the essential features do not require special 
management consideration or protection because there are no applicable 
threats to the features that have to be managed or protected for the 
conservation of the species, then that area does not meet this part 
(section 3(5)(A)(i)) of the definition of ``critical habitat.'' 
Nevertheless, we expect such circumstances to be rare.
    Furthermore, it is not necessary that a feature currently requires 
special management considerations or protection, only that it may 
require special management to meet the definition of ``critical 
habitat.'' 16 U.S.C. 1532(5)(A)(i) (emphasis added). Two district court 
decisions have emphasized this point. CBD v. Norton (Mexican spotted 
owl); Cape Hatteras Access Preservation Alliance v. DOI, 344 F. Supp. 
2d 108 (D.D.C. 2004) (piping plover). The legislative history supports 
the view that Congress purposely set the standard as ``may require.'' 
Earlier versions of the bills that led to the statutory definition of 
``critical habitat'' used the word ``requires,'' but ``may require'' 
was substituted prior to final passage. In any case, an interpretation 
of a statute should give meaning to each word Congress chose to use, 
and our interpretation gives the word ``may'' meaning.
    Finally, we explain our interpretation of the meaning of the phrase 
`interbreeds when mature,' which is found in the definition of 
`species.' The ``interbreeds when mature'' language is ambiguous 
(Modesto Irrigation Dist. v. Gutierrez, 619 F.3d 1024, 1032 (9th Cir. 
2010)). Although we are not revising the regulatory definition of 
``species'' at this time, we are using this notice to inform the public 
of our interpretation of this phrase.'' We have always understood the 
phrase ``interbreeds when mature'' to mean that a DPS consists of 
members of the same species or subspecies that when in the wild would 
be biologically capable of interbreeding if given the opportunity, but 
all members need not actually interbreed with each other. A DPS is a 
subset of a species or subspecies, and cannot consist of members of 
different species or subspecies. The ``biological species'' concept, 
which defines species according to a group of organisms' actual or 
potential ability to interbreed, and their relative reproductive 
isolation from other organisms, is one widely accepted approach to 
defining species. We interpret the phrase ``interbreeds when mature'' 
to reflect this understanding and to signify only that a DPS must be 
composed solely of members of the same species or subspecies. As long 
as this requirement is met, a DPS may include multiple groups of 
vertebrate organisms that do not actually interbreed with each other. 
For example, a DPS may consist of multiple groups of a fish species 
separated into different drainages. While it is possible that the 
members of these groups do not actually interbreed with each other, 
their members are biologically capable of interbreeding.
    Our intent was to explain how we have interpreted the phrase, but 
by inadvertently including this interpretation in the regulatory 
language of the proposed rule, we in fact were proposing to change the 
definition of ``species'' to insert, ``A distinct population segment 
`interbreeds when mature' when it consists of members of the same 
species or subspecies in the wild that are capable of interbreeding 
when mature.'' We have removed the proposed language from the 
definition of ``species'' in this final rule and left only the language 
in this preamble. We also noticed that we inadvertently left out the 
word ``Includes'' from the definition of ``species'' in our proposed 
regulation. We have restored the word ``Includes'' in this final 
regulation to match the definition of ``species'' found in our 1984 
regulation. The Services are not substantively amending the definition 
at this time.

Section 424.12 Criteria for Designating Critical Habitat

    We are revising the first sentence of paragraph (a) to clarify that 
critical habitat shall be proposed and finalized ``to the maximum 
extent prudent and determinable . . . concurrent with issuing proposed 
and final listing rules, respectively.'' The language of the existing 
regulation is ``shall be specified to the maximum extent prudent and 
determinable at the time a species is proposed for listing.'' We added 
the words ``proposed and finalized'' to be

[[Page 7432]]

consistent with the Act, which requires that critical habitat be 
finalized concurrent with listing to the maximum extent prudent and 
determinable. The existing language could be interpreted to mean 
proposing critical habitat concurrent with listing was the only 
requirement. Additionally, the existing phrase ``shall be specified'' 
is vague and not consistent with the requirement of the Act, which is 
to propose and finalize a designation of critical habitat. The last two 
sentences in paragraph (a) contain minor language changes to use the 
active voice.
    Paragraphs (a)(1) and (a)(1)(i) are not changed.
    The first sentence of paragraph (a)(1)(ii) remains the same. 
However, we add a second sentence to paragraph (a)(1)(ii) to provide 
examples of factors that we may consider in determining whether a 
designation would not be beneficial to the species. A designation may 
not be beneficial and, therefore, not prudent, under certain 
circumstances, including but not limited to: Whether the present or 
threatened destruction, modification, or curtailment of a species' 
habitat or range is not a threat to the species, or whether no areas 
meet the definition of ``critical habitat.'' For example, this 
provision may apply to a species that is threatened primarily by 
disease but the habitat that it relies upon continues to exist 
unaltered throughout an appropriate distribution that, absent the 
impact of the disease, would support conservation of the species. 
Another example is a species that occurs in portions of the United 
States and a foreign nation. In the foreign nation, there are multiple 
areas that have the features essential to the conservation of the 
species; however, in the United States there are no such areas. 
Consequently, there are no areas within the United States that meet the 
definition of ``critical habitat'' for the species. Therefore, there is 
no benefit to designation of critical habitat, and designation is not 
prudent.
    While this provision is intended to reduce the burden of regulation 
in rare circumstances in which designation of critical habitat does not 
contribute to the conservation of the species, the Services recognize 
the value of critical habitat as a conservation tool and expect to 
designate it in most cases.
    Section 424.12(a)(2) remains unchanged from the current regulation, 
and subparagraphs (i) and (ii) contain minor language changes to be 
consistent with the language in the Act.
    The Services are completely revising Sec.  424.12(b) of the current 
regulations. For the reason explained below, we also remove the terms 
``principal biological or physical constituent elements'' and ``primary 
constituent elements'' from this section. These concepts are replaced 
by the statutory term ``physical or biological features,'' which we 
define as described above.
    The first part of the statutory definition of ``critical habitat'' 
(section 3(5)(A)(i)) contains terms necessary for (1) identifying 
specific areas within the geographical area occupied by the species 
that may be considered for designation as critical habitat and (2) 
describing which features on those areas are essential to the 
conservation of species. In addition, current Sec.  424.12(b) 
introduced the phrase ``primary constituent elements.'' However, the 
regulations are not clear as to how primary constituent elements relate 
to or are distinct from physical or biological features, which is the 
term used in the statute. Adding a term not found in the statute that 
is at least in part redundant with the term ``physical or biological 
features'' has proven confusing. Trying to parse features into elements 
and give them meaning distinct from one another has added an 
unnecessary layer of complication and confusion during the designation 
process.
    The definition of ``physical or biological features,'' described 
above, encompasses similar habitat characteristics as currently 
described in Sec.  424.12(b), such as roost sites, nesting grounds, 
spawning sites, feeding sites, seasonal wetland or dryland, water 
quality or quantity, host species or plant pollinator, geological 
formation, vegetation type, tide, and specific soil types. Our proposal 
is intended to simplify and clarify the process, and to remove 
redundancy, without substantially changing the manner in which critical 
habitat is designated. The Services still expect to provide a 
comparable level of detail and specificity in defining and describing 
physical or biological features essential to the conservation of a 
species.
    Section 424.12(b) describes the process to be used to identify the 
specific areas to be considered for designation as critical habitat, 
based on the statutory definition of ``critical habitat.'' With respect 
to both parts of the definition, the revised regulations emphasize that 
the Secretary will identify areas that meet the definition ``at a scale 
determined by the Secretary to be appropriate.'' The purpose of this 
language is to clarify that the Secretary cannot and need not make 
determinations at an infinitely fine scale. Thus, the Secretary need 
not determine that each square inch, square yard, acre, or even square 
mile independently meets the definition of ``critical habitat.'' Nor 
will the Secretary necessarily consider legal property lines in making 
a scientific judgment about what areas meet the definition of 
``critical habitat.'' Instead, the Secretary has discretion to 
determine at what scale to do the analysis. In making this 
determination, the Secretary may consider, among other things, the life 
history of the species, the scales at which data are available, and 
biological or geophysical boundaries (such as watersheds), and any 
draft conservation strategy that may have been developed for the 
species.
    Under the first part of the statutory definition, in identifying 
specific areas for consideration, the Secretary must first identify the 
geographical area occupied by the species at the time of listing. 
Within the geographical area occupied by the species, the Secretary 
must identify the specific areas on which are found those physical or 
biological features (1) essential to the conservation of the species, 
and (2) which may require special management considerations or 
protection.
    Under Sec.  424.12(b)(1)(i), the Secretary will identify the 
geographical area occupied by the species using the new regulatory 
definition of this term. Under Sec.  424.12(b)(1)(ii), the Secretary 
will then identify those physical and biological features essential to 
the conservation of the species. These physical or biological features 
are to be described at an appropriate level of specificity, based on 
the best scientific data available at the time of designation. For 
example, physical features might include gravel of a particular size 
required for spawning, alkali soil for germination, protective cover 
for migration, or susceptibility to flooding or fire that maintains 
early-successional habitat characteristics. Biological features might 
include prey species, forage grasses, specific kinds or ages of trees 
for roosting or nesting, symbiotic fungi, or a maximum level of 
nonnative species consistent with conservation needs of the listed 
species. The features may also be combinations of habitat 
characteristics and may encompass the relationship between 
characteristics or the necessary amount of a characteristic needed to 
support the life history of the species. For example, a feature may be 
a specific type of forage grass that is in close proximity to a certain 
type of shrub for cover. Because the species would not consume the 
grass if there were not the nearby shrubs in which to hide from 
predators, one of these characteristics in isolation would not be an 
essential feature; the feature that supports the life-history needs of 
the

[[Page 7433]]

species would consist of the combination of these two characteristics 
in close proximity to each other.
    In considering whether features are essential to the conservation 
of the species, the Services may consider an appropriate quality, 
quantity, and spatial and temporal arrangement of habitat 
characteristics in the context of the life-history needs, condition, 
and status of the species. For example, a small patch of meadow may 
have the native flowers, full sun, and a biologically insignificant 
level of invasive ants that have been determined to be important 
habitat characteristics that support the life-history needs of an 
endangered butterfly. However, that small patch may be too far away 
from other patches to allow for mixing of the populations, or the 
meadow may be too small for the population to persist over time. So the 
area could have important characteristics, but those characteristics 
may not contribute to the conservation of the species because they lack 
the appropriate size and proximity to other meadows with similar 
characteristics. Conversely, the exact same characteristics (native 
flowers, full sun, and a biologically insignificant level of invasive 
ants), when combined with the additional characteristics of larger size 
and short dispersal distance to other meadows, may in total constitute 
a physical or biological feature essential to the conservation of the 
species.
    Under Sec.  424.12(b)(1)(iii), the Secretary will then determine 
the specific areas within the geographical area occupied by the species 
on which are found those physical or biological features essential to 
the conservation of the species.
    Section 424.12(b)(1)(iv) provides for the consideration of whether 
those physical or biological features may require special management 
considerations or protection. In this portion of the analysis, the 
Secretary must determine whether there are any ``methods or procedures 
useful in protecting physical and biological features for the 
conservation of listed species.'' Only those physical or biological 
features that may be in need of special management considerations or 
protection are considered further. The Services may conduct this 
analysis for the need of special management considerations or 
protection at the scale of all specific areas, but they may also do so 
within each specific area.
    The ``steps'' outlined in subparagraphs (i) through (iv) above are 
not necessarily intended to be applied strictly in a stepwise fashion. 
The instructions in each subparagraph must be considered, as each 
relates to the statutory definition of ``critical habitat.'' However, 
there may be multiple pathways in the consideration of the elements of 
the first part of the definition of ``critical habitat.'' For instance, 
one may first identify specific areas occupied by the species, then 
identify all features needed by a species to carry out life-history 
functions in those areas through consideration of the conservation 
needs of the species, and then determine which of those specific areas 
contain the features essential to the conservation of the species. The 
determination of which features are essential to the conservation of 
the species may consider the spatial arrangement and quantity of such 
features in the context of the life history, status, and conservation 
needs of the species. In some circumstances, not every location that 
contains one or more of the habitat characteristics that a species 
needs will be designated as critical habitat. Some locations may have 
important habitat characteristics, but are too small to support a 
population of the species, or are located too far away from other 
locations to allow for genetic exchange. Considered in context of any 
generalized conservation strategy that might be developed for the 
species, Sec.  424.12(b)(1)(i) through (iv) will allow for sufficient 
flexibility to determine what areas within the geographical area 
occupied by the species are needed to provide for the conservation of 
the species.
    Occasionally, new taxonomic information may result in a 
determination that a previously listed species or subspecies is 
actually two or more separate entities. In such an instance, the 
Services must have flexibility, when warranted, to continue to apply 
the protections of the Act to preserve the conservation value of 
critical habitat that has been designated for a species listed as one 
listable entity (i.e., species, subspecies, or distinct population 
segment (DPS)), and which is being reproposed for listing as one or 
more different listable entities (e.g., when the Services propose to 
list two or more species, subspecies, or DPSs that had previously been 
listed as a single entity). Where appropriate (such as where the range 
of an entity proposed for listing and a previously designated area of 
critical habitat align), the Services have the option to find, 
simultaneously with the proposed listing of the proposed entity or 
entities, that the relevant geographic area(s) of the existing 
designation continues to apply as critical habitat for the new entity 
or entities. Such a finding essentially carries forward the existing 
critical habitat (in whole or in part). Alternatively, the Services 
have the option to pursue a succinct and streamlined notice of proposed 
rulemaking to carry forward the existing critical habitat (in whole or 
in part), which draws, as appropriate, from the existing designation.
    More broadly, when applying Sec.  424.12(b)(1) to the facts 
relating to a particular species, the Services will usually have more 
than one option available for determining what specific areas 
constitute the critical habitat for that species. In keeping with the 
conservation-based purpose of critical habitat, the relevant Service 
may find it best to first consider broadly what it knows about the 
biology and life history of the species, the threats it faces, the 
species' status and condition, and, therefore, the likely conservation 
needs of the species with respect to habitat. If there already is a 
recovery plan for that species (which is not always the case and not a 
prerequisite for designating critical habitat), then that plan would be 
useful for this analysis.
    Using principles of conservation biology such as the need for 
appropriate patch size, connectivity of habitat, dispersal ability of 
the species, or representation of populations across the range of the 
species, the Services may evaluate areas needed for the conservation of 
the species. The Services must identify the physical and biological 
features essential to the conservation of the species and unoccupied 
areas that are essential for the conservation of the species. When 
using this methodology to identify areas within the geographical area 
occupied by the species at the time of listing, the Services will 
expressly translate the application of the relevant principles of 
conservation biology into the articulation of the features. Aligning 
the physical and biological features identified as essential with the 
conservation needs of the species and any conservation strategy that 
may have been developed for the species allows us to develop more 
precise designations that can serve as more effective conservation 
tools, focusing conservation resources where needed and minimizing 
regulatory burdens where not necessary.
    We note that designation of critical habitat relies on the best 
available scientific data at the time of designation. The Services may 
not know of, or be able to identify, all of the areas on which are 
found the features essential to the conservation of a species. After 
designation of final critical habitat for a particular species, the 
Services may become aware of or identify other

[[Page 7434]]

features or areas essential to the conservation of the species, such as 
through 5-year reviews and recovery planning. Newly identified features 
that are useful for characterizing the conservation value of designated 
critical habitat can be considered in consultations conducted under 
section 7(a)(2) of the Act as part of the best available scientific and 
commercial data. We also note that if there is uncertainty as to 
whether an area was ``within the geographical area occupied by the 
species, at the time it is listed,'' the Services may in the 
alternative designate the area under the second part of the definition 
if the relevant Service determines that the area is essential for the 
conservation of the species.
    The second part of the statutory definition of ``critical habitat'' 
(section 3(5)(A)(ii)) provides that areas outside the geographical area 
occupied by the species at the time of listing should be designated as 
critical habitat if they are determined to be ``essential for the 
conservation of the species.'' Section 424.12(b)(2) further describes 
the factors the Services will consider in identifying any areas outside 
the geographical area occupied by the species at the time of listing 
that may meet this aspect of the definition of ``critical habitat.'' 
Under Sec.  424.12(b)(2), the Services will determine whether 
unoccupied areas are essential for the conservation of the species by 
considering ``the life-history, status, and conservation needs of the 
species.'' This will be further informed by any generalized 
conservation strategy, criteria, or outline that may have been 
developed for the species to provide a substantive foundation for 
identifying which features and specific areas are essential to the 
conservation of the species and, as a result, the development of the 
critical habitat designation.
    Section 424.12(b)(2) subsumes and supersedes Sec.  424.12(e) of the 
existing regulations. Existing section 424.12(e) provides that the 
Secretary shall designate areas outside the ``geographical area 
presently occupied by a species'' only when ``a designation limited to 
its present range would be inadequate to ensure the conservation of the 
species.'' Although the existing provision represents one reasonable 
approach to giving meaning to the term ``essential'' as it relates to 
unoccupied areas, the Services find, based on years of applying the 
existing regulations, that this provision is both unnecessary and 
unintentionally limiting. While Congress supplied two different 
standards to govern the Secretary's designation of these two types of 
habitat, there is no suggestion in the legislative history that the 
Services were expected to exhaust occupied habitat before considering 
whether any unoccupied area may be essential. In addition, although 
section 3(5)(C) of the Act reflects Congressional intent that a 
designation generally should not include every area that the species 
can occupy, this does not necessarily translate into a mandate to avoid 
designation of any unoccupied areas unless relying on occupied areas 
alone would be insufficient. Indeed, there may be instances in which 
particular unoccupied habitat is more important to the conservation of 
the species than some occupied habitat.
    For example, a species may occupy at low densities a large amount 
of habitat that is marginal habitat for the species. That marginal 
habitat may nonetheless meet the definition of ``critical habitat'' 
because the species has been extirpated from what historically was 
superior habitat, and it is possible to recover the species if all of 
the marginal habitat is thoroughly protected. However, a more certain 
and efficient path to recovery may involve the protection of a 
relatively small subset of the marginal habitat combined with 
protection of some of the superior habitat (allowing for natural 
expansion or artificial reintroduction). A variation of this scenario 
would involve habitat that may currently be of high quality, but is 
unlikely to remain that way due to the effects of climate change. Given 
these scenarios, it will be useful for the Services to retain the 
flexibility to consider various paths to recovery in considering what 
areas to designate as critical habitat.
    We conclude that a rigid step-wise approach, i.e., first 
designating all occupied areas that meet the definition of ``critical 
habitat'' (assuming that no unoccupied habitat is designated) and then, 
only if that is not enough, designating essential unoccupied habitat, 
does not necessarily serve the best conservation strategy for the 
species and, in some circumstances, may result in a designation that is 
geographically larger but less effective as a conservation tool. 
Deleting current Sec.  424.12(e) will allow us to consider including 
occupied and unoccupied areas in a critical habitat designation and to 
follow any general conservation strategy, criteria, or outline for the 
species that may be developed. We expect that the concurrent evaluation 
of occupied and unoccupied areas for a critical habitat designation 
will allow us to develop more precise designations that can serve as 
more effective conservation tools, focusing conservation resources 
where needed and minimizing regulatory burdens where not necessary.
    In addition, the existing regulatory provision is unnecessary 
because the Secretary in any case must find that the unoccupied area is 
``essential.'' In many cases the Secretary may conclude that an 
integral part of analyzing whether unoccupied areas are essential is to 
begin with the occupied areas, but the Act does not require the 
Services to first prove that the occupied areas are insufficient before 
considering unoccupied areas. Therefore, we conclude that deleting 
existing Sec.  424.12(e) restores the two parts of the statutory 
definition (for occupied and unoccupied areas) to the relationship 
envisioned by Congress.
    As it is currently written, the provision in Sec.  424.12(e) also 
confusingly references present range, while the two parts of the 
statutory definition refer to the area occupied at the time of listing. 
In practice, these concepts may be largely the same, given that 
critical habitat ideally should be designated at or near the time of 
listing. Nevertheless, the Services find that it will reduce confusion 
to change the regulations to track the statutory distinction. In 
addition, because critical habitat may be revised at any time, the 
statutory distinction may be important during a revision, which could 
occur several years after the listing of the species.
    However, we note that unoccupied areas must be essential for the 
conservation of the species, but need not have the features essential 
to the conservation of the species: This follows directly from the 
inclusion of the ``features essential'' language in section 3(5)(A)(i) 
but not in section 3(5)(A)(ii). Thus, even keeping in mind that 
``features'' may include features that support the occurrence of 
ephemeral or dynamic habitat conditions, the Services may identify as 
areas essential to the conservation of the species areas that do not 
yet have the features, or degraded or successional areas that once had 
the features, or areas that contain sources of or provide the processes 
that maintain essential features in other areas. Areas may develop 
features over time, or, through special management considerations or 
protection. The conservation value may be influenced by the level of 
effort needed to manage degraded habitat to the point where it could 
support the listed species. Under Sec.  424.12(b)(2), the Services will 
identify unoccupied areas, either with the features or not, that are 
essential for the conservation of a species. This section is intended 
to provide a flexible, rather than prescriptive, standard to allow the 
Services to tailor the inquiry about what

[[Page 7435]]

is essential to the specific characteristics and circumstances of the 
particular species.
    The Services anticipate that critical habitat designations in the 
future will likely increasingly use the authority to designate specific 
areas outside the geographical area occupied by the species at the time 
of listing following any generalized conservation strategy that might 
be developed for the species. As the effects of global climate change 
continue to influence distribution and migration patterns of species, 
the ability to designate areas that a species has not historically 
occupied is expected to become increasingly important. For example, 
such areas may provide important connectivity between habitats, serve 
as movement corridors, or constitute emerging habitat for a species 
experiencing range shifts in latitude or altitude (such as to follow 
available prey or host plants). Where the best available scientific 
data suggest that specific unoccupied areas are, or it is reasonable to 
determine from the record that they will eventually become, necessary 
to support the species' recovery, it may be appropriate to find that 
such areas are essential for the conservation of the species and thus 
meet the definition of ``critical habitat.''
    An example may clarify this situation: A butterfly depends on a 
particular host plant. The host plant is currently found in a 
particular area. The data show the host plant's range has been moving 
up slope in response to warming temperatures (following the cooler 
temperatures) resulting from the effects of climate change. Other 
butterfly species have been documented to have shifted from their 
historical ranges in response to changes in the range of host plants. 
Therefore, we rationally conclude that the butterfly's range will 
likely move up slope, and we would designate specific areas outside the 
geographical area occupied by the butterfly at the time it was listed 
if we concluded this area was essential based on this information.
    Adherence to the process described above will ensure compliance 
with the requirement in section 3(5)(C) of the Act, which states that, 
except in those circumstances determined by the Secretary, critical 
habitat shall not include the entire geographical area which can be 
occupied by the threatened or endangered species.
    Existing Sec.  424.12(c) resulted from a recent separate rulemaking 
(77 FR 25611; May 1, 2012); it is not addressed in this rulemaking.
    Section 424.12(d) includes minor language changes and removes the 
example as it is not necessary for the text of the regulation.
    We are removing current Sec.  424.12(e), as this concept--
designating specific areas outside the geographical area occupied by 
the species at the time it is listed upon a determination by the 
Secretary that such areas are essential for the conservation of the 
species--is captured in revised Sec.  424.12(b)(2).
    We are redesignating the current Sec.  424.12(f) as Sec.  424.12(e) 
and adding a second sentence to emphasize that designation of critical 
habitat for species that were listed prior to 1978 is at the discretion 
of the Secretaries. The first sentence of Sec.  424.12(e) provides that 
the Secretary ``may designate critical habitat for those species listed 
as threatened or endangered species but for which no critical habitat 
has been previously designated.'' This is substantially the same as 
current Sec.  424.12(f) in the existing regulations, although the 
Services have changed the passive voice to the active voice.
    The new second sentence codifies in the regulations the principle 
that the decision whether to designate critical habitat for species 
listed prior to the effective date of the 1978 Amendments to the Act 
(November 10, 1978) is at the discretion of the Secretary. This 
principle is clearly reflected in the text of the statute and firmly 
grounded in the legislative history. The definition of ``critical 
habitat'' added to the Act in 1978 provided that the Secretary ``may,'' 
but was not required to, establish critical habitat for species already 
listed by the effective date of the 1978 amendments. See Public Law 95-
632, 92 Stat. 3751 (Nov. 10, 1978) (codified at 16 U.S.C. 1532(5)(B)); 
see also Conservancy of Southwest Florida v. United States Fish & 
Wildlife Service, No. 2:10-cv-106-FtM-SPC, 2011 WL 1326805, *9 (M.D. 
Fla. April 6, 2011) (Florida panther) (plain language of statute 
renders designation of habitat for species listed prior to the 1978 
Amendments discretionary), aff'd, 677 F.3d 1073 (11th Cir. 2012); Fund 
for Animals v. Babbitt, 903 F. Supp. 96, 115 n.8 (D.D.C. 1995) (grizzly 
bear) (same). Similarly, the 1982 amendments expressly exempted species 
listed prior to the 1978 amendments from the requirement that critical 
habitat be designated concurrently with listing. See Public Law 97-304, 
96 Stat. 1411, sec, 2(b)(4) (Oct. 13, 1982). To reduce potential 
confusion, the revised regulations reflect the discretionary nature of 
designations for such species.
    As recent litigation has highlighted, the statutory history 
regarding the procedures for undertaking proposals to designate 
critical habitat for certain species is nuanced and has proven 
confusing in other respects as well. For species listed before passage 
of the 1982 amendments to the Act (October 13, 1982), any proposed 
regulations issued by the Secretary to designate critical habitat are 
governed by the provisions in section 4 of the Act applicable to 
proposals to revise critical habitat designations. This is specified in 
an uncodified provision of the 1982 amendments. See Public Law 97-304, 
96 Stat. 1411, 1416, 2(b)(2), 16 U.S.C. 1533 (note) (``Any regulation 
proposed after, or pending on, the date of the enactment of this Act to 
designate critical habitat for a species that was determined before 
such date of enactment to be endangered or threatened shall be subject 
to the procedures set forth in section 4 of such Act of 1973 . . . for 
regulations proposing revisions to critical habitat instead of those 
for regulations proposing the designation of critical habitat.''); see 
also Center for Biological Diversity v. FWS, 450 F.3d 930, 934-35 (9th 
Cir. 2006) (unarmored three-spine stickleback). While the Services do 
not propose to add regulatory text to address this narrow issue, we 
explain below how these provisions must be understood within the 
general scheme for designating critical habitat.
    As a result of the above-referenced provision of the 1982 
amendments, final regulations to designate critical habitat for species 
that were listed prior to October 13, 1982, are governed by section 
4(b)(6)(A)(i) of the Act. By contrast, for species listed after October 
13, 1982, final regulations are governed by section 4(b)(6)(A)(ii). 
Proposed rules for species listed both pre- and post-1982 are governed 
by section 4(b)(5). Thus, the Services have additional options at the 
final rule stage with regard to a proposal to designate critical 
habitat for those species listed prior to 1982 that they do not have 
when proposing to designate habitat for other species. These include an 
option to make a finding that the revision ``should not be made'' and 
to extend the 12-month deadline by an additional period of up to 6 
months if there is substantial disagreement regarding the sufficiency 
or accuracy of available data. See 16 U.S.C. 1533(b)(6)(B)(i); see also 
Center for Biological Diversity, 450 F.3d at 936-37.
    These provisions, however, do not affect the handling or 
consideration of petitions seeking designation of critical habitat for 
species listed prior to 1982. The term ``petition'' is not used in 
section 2(b)(2) of the 1982 amendments to the Act (compare to section 
2(b)(1) of the same amendments, which mentions

[[Page 7436]]

``[a]ny petition'' and ``any regulation''). Thus, the special 
procedures for finalizing proposals to designate critical habitat for 
species listed prior to 1982 come into play only upon a decision by the 
Secretary to actually propose to designate critical habitat for such 
species. Petitions seeking such designations are managed just like any 
other petition seeking designation, which are governed by the 
provisions of the Administrative Procedure Act rather than section 4 of 
the Endangered Species Act. See 50 CFR 424.14(d); Conservancy of 
Southwest Florida, 2011 WL 1326805, at *9 (``It is the Secretary's 
proposal to designate critical habitat that triggers the statutory and 
regulatory obligations, not plaintiffs' requests that the Secretary do 
so.''); Fund for Animals v. Babbitt, 903 F. Supp. at 115 (petitions to 
designate critical habitat are governed by the APA, not the ESA).
    We are redesignating current Sec.  424.12(g) as Sec.  424.12(f) 
with minor language changes.
    We are redesignating current Sec.  424.12(h) as Sec.  424.12(g) 
with minor language changes.
    We are adding new Sec.  424.12(h). This paragraph reflects the 
amendment to section 4(a)(3)(B)(i) of the Act in the National Defense 
Authorization Act for Fiscal Year 2004 (Pub. L. 108-136). Section 
424.12(h) codifies the amendments to the Act that prohibit the Services 
from designating as critical habitat lands or other geographic areas 
owned or controlled by the Department of Defense, or designated for its 
use, if those lands are subject to an integrated natural resources 
management plan (INRMP) prepared under section 101 of the Sikes Act (16 
U.S.C. 670a), and if the Secretary determines in writing that such plan 
provides a benefit to the species for which critical habitat is being 
designated. In other words, if the Services conclude that an INRMP 
``benefits'' the species, the area covered is ineligible for 
designation. Unlike the Secretary's decision on exclusions under 
section 4(b)(2) of the Act, this resulting exemption is not subject to 
the discretion of the Secretary (once a benefit has been found).
    Neither the Act nor the National Defense Authorization Act for 
Fiscal Year 2004 defines the term ``benefit.'' However, the conference 
report on the 2004 National Defense Authorization Act (Report 108-354) 
instructed the Secretary to ``assess an INRMP's potential contribution 
to species conservation, giving due regard to those habitat protection, 
maintenance, and improvement projects . . . that address the particular 
conservation and protection needs of the species for which critical 
habitat would otherwise be proposed.'' We, therefore, conclude that 
Congress intended ``benefit'' to mean ``conservation benefit.'' In 
addition, because a finding of benefit results in an exemption from 
critical habitat designation, and given the specific mention of 
``habitat protection, maintenance, and improvement'' in the conference 
report, we infer that Congress intended that an INRMP provide a 
conservation benefit to the habitat (e.g., essential features) of the 
species, in addition to the species. Examples of actions that provide 
habitat-based conservation benefit to the species include: Reducing 
fragmentation of habitat; maintaining or increasing populations in the 
wild; planning for catastrophic events; protecting, enhancing, or 
restoring habitats; buffering protected areas; and testing and 
implementing new habitat-based conservation strategies.
    In the conference report, Congress further instructed the Secretary 
to ``establish criteria that would be used to determine if an INRMP 
benefits the listed species.'' The Services, therefore, describe in 
Sec.  424.12(h) some factors that will help us determine whether an 
INRMP provides a conservation benefit: (1) The extent of area and 
features present; (2) the type and frequency of use of the area by the 
species; (3) the relevant elements of the INRMP in terms of management 
objectives, activities covered, and best management practices, and the 
certainty that the relevant elements will be implemented; and (4) the 
degree to which the relevant elements of the INRMP will protect the 
habitat from the types of effects that would be addressed through a 
destruction-or-adverse-modification analysis. FWS will defer to our 
Guidelines for Coordination on Integrated Natural Resource Management 
Plans in evaluating these plans.
    Under the Sikes Act, the Department of Defense is also instructed 
to prepare INRMPs in cooperation with FWS and each appropriate State 
fish and wildlife agency. The compliant or operational INRMP must 
reflect the mutual agreement of the involved agencies on the 
conservation, protection, and management of fish and wildlife 
resources. In other words, FWS must agree with an INRMP (reflected by 
signature of the plan or letter of concurrence pursuant to the Sikes 
Act (not to be confused with a letter of concurrence issued in relation 
to consultation under section 7(a)(2) of the Act)) before an INRMP can 
be relied upon for making an area ineligible for designation under 
section 4(a)(3)(B)(i). As part of this process, FWS will also conduct 
consultation under section 7(a)(2) of the Act, if listed species or 
designated critical habitat may be affected by the actions included in 
the INRMP. Section 7(a)(2) of the Act will continue to apply to any 
Federal actions affecting the species once an INRMP is compliant or 
operation. However, if the area is ineligible for critical habitat 
designation under section 4(a)(3)(B)(i), then those consultations would 
address only effects to the species and the likelihood of the Federal 
action to jeopardize the continued existence of the species.
    New Sec.  424.12(h) specifies that an INRMP must be compliant or 
operational to make an area ineligible for designation under section 
4(a)(3)(B)(i). When the Department of Defense provides a draft INRMP 
for the Services' consideration during development of a critical 
habitat designation, the Services may evaluate it following the 
guidelines set forth in our Policy on Exclusions from Critical Habitat 
under Section 4(b)(2) of the Act.
    Existing Sec.  424.19 results from a recent, separate rulemaking 
(78 FR 53058), and is not addressed in this rulemaking.

Required Determinations

Regulatory Planning and Review--Executive Orders 12866 and 13563

    Executive Order 12866 provides that the Office of Information and 
Regulatory Affairs (OIRA) in the Office of Management and Budget will 
review all significant rules. The Office of Information and Regulatory 
Affairs has determined that this rule is significant.
    Executive Order 13563 reaffirms the principles of E.O. 12866 while 
calling for improvements in the nation's regulatory system to promote 
predictability, to reduce uncertainty, and to use the best, most 
innovative, and least burdensome tools for achieving regulatory ends. 
The executive order directs agencies to consider regulatory approaches 
that reduce burdens and maintain flexibility and freedom of choice for 
the public where these approaches are relevant, feasible, and 
consistent with regulatory objectives. E.O. 13563 emphasizes further 
that regulations must be based on the best available science and that 
the rulemaking process must allow for public participation and an open 
exchange of ideas. We have developed this rule in a manner consistent 
with these requirements.

[[Page 7437]]

Regulatory Flexibility Act

    Under the Regulatory Flexibility Act (as amended by the Small 
Business Regulatory Enforcement Fairness Act (SBREFA) of 1996; 5 U.S.C. 
601 et seq.), whenever a Federal agency is required to publish a notice 
of rulemaking for any proposed or final rule, it must prepare, and make 
available for public comment, a regulatory flexibility analysis that 
describes the effect of the rule on small entities (i.e., small 
businesses, small organizations, and small government jurisdictions). 
However, no regulatory flexibility analysis is required if the head of 
an agency, or his designee, certifies that the rule will not have a 
significant economic impact on a substantial number of small entities. 
SBREFA amended the Regulatory Flexibility Act to require Federal 
agencies to provide a statement of the factual basis for certifying 
that a rule will not have a significant economic impact on a 
substantial number of small entities. We certified that the proposed 
rule to implement these changes to the 50 CFR part 424 regulations 
would not have a significant economic impact on a substantial number of 
small entities (79 FR 27066, at 27075). Several commenters objected to 
the Services' determination that a regulatory flexibility analysis is 
not required for this regulation, stating the regulated community is 
affected by this regulation. We explained that NMFS and FWS are the 
only entities that are directly affected by this rule because we are 
the only entities that designate critical habitat, and this rule 
pertains to the procedures for carrying out those designations (See our 
response to Comment 81). No external entities, including any small 
businesses, small organizations, or small governments, will experience 
any direct economic impacts from this rule. No information received 
during the public comment period leads us to change our analysis.

Unfunded Mandates Reform Act (2 U.S.C. 1501 et seq.)

    In accordance with the Unfunded Mandates Reform Act (2 U.S.C. 1501 
et seq.):
    (a) On the basis of information contained in the ``Regulatory 
Flexibility Act'' section above, these regulations will not 
``significantly or uniquely'' affect small governments. We have 
determined and certify pursuant to the Unfunded Mandates Reform Act, 2 
U.S.C. 1502, that these regulations will not impose a cost of $100 
million or more in any given year on local or State governments or 
private entities. A Small Government Agency Plan is not required. As 
explained above, small governments will not be affected because the 
regulations will not place additional requirements on any city, county, 
or other local municipalities.
    (b) These regulations will not produce a Federal mandate on State, 
local, or tribal governments or the private sector of $100 million or 
greater in any year; that is, this rule is not a ``significant 
regulatory action'' under the Unfunded Mandates Reform Act. These 
regulations will impose no obligations on State, local, or tribal 
governments.

Takings (E.O. 12630)

    In accordance with Executive Order 12630, these regulations will 
not have significant takings implications. These regulations will not 
pertain to ``taking'' of private property interests, nor will they 
directly affect private property. A takings implication assessment is 
not required because these regulations (1) will not effectively compel 
a property owner to suffer a physical invasion of property and (2) will 
not deny all economically beneficial or productive use of the land or 
aquatic resources. These regulations will substantially advance a 
legitimate government interest (conservation and recovery of endangered 
and threatened species) and will not present a barrier to all 
reasonable and expected beneficial use of private property.

Federalism (E.O. 13132)

    In accordance with Executive Order 13132, we have considered 
whether these regulations will have significant Federalism effects and 
have determined that a Federalism assessment is not required. These 
regulations pertain only to determinations to designate critical 
habitat under section 4 of the Act, and will not have substantial 
direct effects on the States, on the relationship between the Federal 
Government and the States, or on the distribution of power and 
responsibilities among the various levels of government.

Civil Justice Reform (E.O. 12988)

    These regulations do not unduly burden the judicial system and meet 
the applicable standards provided in sections 3(a) and 3(b)(2) of 
Executive Order 12988. These regulations will clarify how the Services 
will make designations of critical habitat under section 4 of the Act.

Government-to-Government Relationship With Tribes

    In accordance with Executive Order 13175 ``Consultation and 
Coordination with Indian Tribal Governments,'' the Department of the 
Interior's manual at 512 DM 2, and the Department of Commerce (DOC) 
Tribal Consultation and Coordination Policy''/(May 21, 2013), DOC 
Departmental Administrative Order (DAO) 218-8, and NOAA Administrative 
Order (NAO) 218-8 (April 2012), we have considered possible effects of 
this final rule on federally recognized Indian Tribes. Following an 
exchange of information with tribal representatives, we have determined 
that this rule, which modifies the general framework for designating 
critical habitat under the ESA, does not have tribal implications as 
defined in Executive Order 13175. We will continue to collaborate/
coordinate with tribes on issues related to federally listed species 
and their habitats and work with them as appropriate as we develop 
particular critical habitat designations, including consideration of 
potential exclusion on the basis of tribal interests. See Joint 
Secretarial Order 3206 (``American Indian Tribal Rights, Federal-Tribal 
Trust Responsibilities, and the Endangered Species Act'', June 5, 
1997).

Paperwork Reduction Act

    This rule does not contain any new collections of information that 
require approval by the OMB under the Paperwork Reduction Act. This 
rule will not impose recordkeeping or reporting requirements on State 
or local governments, individuals, businesses, or organizations. An 
agency may not conduct or sponsor, and a person is not required to 
respond to, a collection of information unless it displays a currently 
valid OMB control number.

National Environmental Policy Act

    We have analyzed these regulations in accordance with the criteria 
of the National Environmental Policy Act (NEPA), the Department of the 
Interior regulations on Implementation of the National Environmental 
Policy Act (43 CFR 46.10-46.450), the Department of the Interior Manual 
(516 DM 1-6 and 8)), and National Oceanic and Atmospheric 
Administration (NOAA) Administrative Order 216-6. Our analysis includes 
evaluating whether this action is procedural, administrative, or legal 
in nature and, therefore, a categorical exclusion applies.
    Following a review of the changes to the regulations at 50 CFR 
424.01, 424.02, and 424.12 and our requirements under NEPA, we find 
that the categorical exclusion found at 43 CFR 46.210(i) applies to 
these regulation changes. At 43 CFR 46.210(i), the Department of the 
Interior has found that the following category of actions

[[Page 7438]]

would not individually or cumulatively have a significant effect on the 
human environment and are, therefore, categorically excluded from the 
requirement for completion of an environmental assessment or 
environmental impact statement:
    ``Policies, directives, regulations, and guidelines: that are of an 
administrative, financial, legal, technical, or procedural nature.''
    NOAA Administrative Order 216-6 contains a substantively identical 
exclusion for ``policy directives, regulations and guidelines of an 
administrative, financial, legal, technical or procedural nature.'' 
Sec.  6.03c.3(i).
    At the time DOI's categorical exclusion was promulgated, there was 
no preamble language that would assist in interpreting what kinds of 
actions fall within the categorical exclusion. However, in 2008, the 
preamble for a language correction to this categorical exclusion gave 
as an example of an action that would fall within the exclusion the 
issuance of guidance to applicants for transferring funds 
electronically to the Federal Government. In addition, examples of 
recent Federal Register notices invoking this categorical exclusion 
include a final rule that established the timing requirements for the 
submission of a Site Assessment Plan or General Activities Plan for a 
renewable energy project on the Outer Continental Shelf (78 FR 12676; 
February 26, 2013), a final rule that established limited liability for 
Noncoal Reclamation by Certified States and Indian Tribes (78 FR 8822; 
February 6, 2013), and a final rule changing the tenure of eagle 
permits (77 FR 22267; April 13, 2012). These regulations fell within 
the categorical exclusion because they did not result in any 
substantive change. In no way did they alter the standards for, or 
outcome of, any physical or regulatory Federal actions.
    The changes to the critical habitat designation criteria are 
similar to these examples of actions that are fundamentally 
administrative, technical, and procedural in nature. The changes to the 
regulations at 50 CFR 424.01, 424.02, and 424.12 (except for paragraph 
(c)) clarify the procedures and criteria used for designating critical 
habitat, addressing in particular several key issues that have been 
subject to frequent litigation. In addition, the regulation revisions 
to 50 CFR 424.01, 424.02, and 424.12 better track the statutory 
language of the Act and make transparent practices the Services follow 
as a result of case law. The Services also make minor wording and 
formatting revisions throughout the three sections to reflect plain 
language standards. The regulation revision as a whole carries out the 
requirements of Executive Order 13563 because, in this rule, the 
Services have analyzed existing rules retrospectively ``to make the 
agencies' regulatory program more effective or less burdensome in 
achieving the regulatory objectives.'' None of the changes to the text 
of the regulation will result in changes to the opportunity for public 
involvement in any critical habitat designations.
    We also considered whether any ``extraordinary circumstances'' 
apply to this situation, such that the DOI categorical exclusion would 
not apply. See 43 CFR 46.215 (``Categorical Exclusions: Extraordinary 
Circumstances''). We determined that no extraordinary circumstances 
apply. Although the final regulations would revise the implementing 
regulations for section 4 of the Act, the effects of these proposed 
changes would not ``have significant impacts on species listed, or 
proposed to be listed, on the List of Endangered or Threatened Species 
or have significant impacts on designated Critical Habitat for these 
species,'' as nothing in the revised regulations is intended to require 
that any previously listed species or completed critical habitat 
designation be reevaluated on this basis. Furthermore, the revised 
regulations do not ``[e]stablish a precedent for future action or 
represent a decision in principle about future actions with potentially 
significant environmental effects'' (43 CFR 46.215(e)). None of the 
extraordinary circumstances in 43 CFR 46.215(a) through (l) apply to 
the revised regulations in 50 CFR 424.01, 424.02, or 424.12.
    Nor would the final regulations trigger any of the extraordinary 
circumstances of NAO 216-6. This rule does not involve a geographic 
area with unique characteristics, is not the subject of public 
controversy based on potential environmental consequences, will not 
result in uncertain environmental impacts or unique or unknown risks, 
does not establish a precedent or decision in principle about future 
proposals, will not have significant cumulative impacts, and will not 
have any adverse effects upon endangered or threatened species or their 
habitats. Sec.  5.05c.
    We completed an Environmental Action Statement for the Categorical 
Exclusion for the revised regulations in 50 CFR 424.01, 424.02, and 
424.12.

Energy Supply, Distribution or Use (E.O. 13211)

    Executive Order 13211 requires agencies to prepare Statements of 
Energy Effects when undertaking certain actions. These regulations are 
not expected to affect energy supplies, distribution, and use. 
Therefore, this action is a not a significant energy action, and no 
Statement of Energy Effects is required.

References Cited

    A complete list of all references cited in this document is 
available on the Internet at http://www.regulations.gov or upon request 
from the U.S. Fish and Wildlife Service (see FOR FURTHER INFORMATION 
CONTACT).

Authority

    We are taking this action under the authority of the Endangered 
Species Act of 1973, as amended (16 U.S.C. 1531 et seq.).

List of Subjects in 50 CFR Part 424

    Administrative practice and procedure, Endangered and threatened 
species.

Regulation Promulgation

    Accordingly, we are amending part 424, subchapter A of chapter IV, 
title 50 of the Code of Federal Regulations, as set forth below:

PART 424--[AMENDED]

0
1. The authority citation for part 424 continues to read as follows:

    Authority: 16 U.S.C. 1531 et seq.


0
2. Revise Sec.  424.01 to read as follows:


Sec.  424.01  Scope and purpose.

    (a) Part 424 provides regulations for revising the Lists of 
Endangered and Threatened Wildlife and Plants and designating or 
revising the critical habitats of listed species. Part 424 provides 
criteria for determining whether species are endangered or threatened 
species and for designating critical habitats. Part 424 also 
establishes procedures for receiving and considering petitions to 
revise the lists and for conducting periodic reviews of listed species.
    (b) The purpose of the regulations in part 424 is to interpret and 
implement those portions of the Act that pertain to the listing of 
species as threatened or endangered species and the designation of 
critical habitat.

0
3. Revise Sec.  424.02 to read as follows:


Sec.  424.02  Definitions.

    The definitions contained in the Act and parts 17, 222, and 402 of 
this title

[[Page 7439]]

apply to this part, unless specifically modified by one of the 
following definitions. Definitions contained in part 17 of this title 
apply only to species under the jurisdiction of the U.S. Fish and 
Wildlife Service. Definitions contained in part 222 of this title apply 
only to species under the jurisdiction of the National Marine Fisheries 
Service.
    Candidate. Any species being considered by the Secretary for 
listing as an endangered or threatened species, but not yet the subject 
of a proposed rule.
    Conserve, conserving, and conservation. To use and the use of all 
methods and procedures that are necessary to bring any endangered or 
threatened species to the point at which the measures provided pursuant 
to the Act are no longer necessary, i.e., the species is recovered in 
accordance with Sec.  402.02 of this chapter. Such methods and 
procedures include, but are not limited to, all activities associated 
with scientific resources management such as research, census, law 
enforcement, habitat acquisition and maintenance, propagation, live 
trapping, and transplantation, and, in the extraordinary case where 
population pressures within a given ecosystem cannot be otherwise 
relieved, may include regulated taking.
    Geographical area occupied by the species. An area that may 
generally be delineated around species' occurrences, as determined by 
the Secretary (i.e., range). Such areas may include those areas used 
throughout all or part of the species' life cycle, even if not used on 
a regular basis (e.g., migratory corridors, seasonal habitats, and 
habitats used periodically, but not solely by vagrant individuals).
    List or lists. The Lists of Endangered and Threatened Wildlife and 
Plants found at 50 CFR 17.11(h) or 17.12(h).
    Physical or biological features. The features that support the 
life-history needs of the species, including but not limited to, water 
characteristics, soil type, geological features, sites, prey, 
vegetation, symbiotic species, or other features. A feature may be a 
single habitat characteristic, or a more complex combination of habitat 
characteristics. Features may include habitat characteristics that 
support ephemeral or dynamic habitat conditions. Features may also be 
expressed in terms relating to principles of conservation biology, such 
as patch size, distribution distances, and connectivity.
    Public hearing. An informal hearing to provide the public with the 
opportunity to give comments and to permit an exchange of information 
and opinion on a proposed rule.
    Special management considerations or protection. Methods or 
procedures useful in protecting the physical or biological features 
essential to the conservation of listed species.
    Species. Includes any species or subspecies of fish, wildlife, or 
plant, and any distinct population segment of any vertebrate species 
that interbreeds when mature. Excluded is any species of the Class 
Insecta determined by the Secretary to constitute a pest whose 
protection under the provisions of the Act would present an 
overwhelming and overriding risk to man.
    Wildlife or fish and wildlife. Any member of the animal kingdom, 
including without limitation, any vertebrate, mollusk, crustacean, 
arthropod, or other invertebrate, and includes any part, product, egg, 
or offspring thereof, or the dead body or parts thereof.

0
4. In Sec.  424.12, revise paragraphs (a), (b), and (d) through (h) to 
read as follows:


Sec.  424.12  Criteria for designating critical habitat.

    (a) To the maximum extent prudent and determinable, we will propose 
and finalize critical habitat designations concurrent with issuing 
proposed and final listing rules, respectively. If designation of 
critical habitat is not prudent or if critical habitat is not 
determinable, the Secretary will state the reasons for not designating 
critical habitat in the publication of proposed and final rules listing 
a species. The Secretary will make a final designation of critical 
habitat on the basis of the best scientific data available, after 
taking into consideration the probable economic, national security, and 
other relevant impacts of making such a designation in accordance with 
Sec.  424.19.
    (1) A designation of critical habitat is not prudent when any of 
the following situations exist:
    (i) The species is threatened by taking or other human activity, 
and identification of critical habitat can be expected to increase the 
degree of such threat to the species; or
    (ii) Such designation of critical habitat would not be beneficial 
to the species. In determining whether a designation would not be 
beneficial, the factors the Services may consider include but are not 
limited to: Whether the present or threatened destruction, 
modification, or curtailment of a species' habitat or range is not a 
threat to the species, or whether any areas meet the definition of 
``critical habitat.''
    (2) Designation of critical habitat is not determinable when one or 
both of the following situations exist:
    (i) Data sufficient to perform required analyses are lacking; or
    (ii) The biological needs of the species are not sufficiently well 
known to identify any area that meets the definition of ``critical 
habitat.''
    (b) Where designation of critical habitat is prudent and 
determinable, the Secretary will identify specific areas within the 
geographical area occupied by the species at the time of listing and 
any specific areas outside the geographical area occupied by the 
species to be considered for designation as critical habitat.
    (1) The Secretary will identify, at a scale determined by the 
Secretary to be appropriate, specific areas within the geographical 
area occupied by the species for consideration as critical habitat. The 
Secretary will:
    (i) Identify the geographical area occupied by the species at the 
time of listing.
    (ii) Identify physical and biological features essential to the 
conservation of the species at an appropriate level of specificity 
using the best available scientific data. This analysis will vary 
between species and may include consideration of the appropriate 
quality, quantity, and spatial and temporal arrangements of such 
features in the context of the life history, status, and conservation 
needs of the species.
    (iii) Determine the specific areas within the geographical area 
occupied by the species that contain the physical or biological 
features essential to the conservation of the species.
    (iv) Determine which of these features may require special 
management considerations or protection.
    (2) The Secretary will identify, at a scale determined by the 
Secretary to be appropriate, specific areas outside the geographical 
area occupied by the species that are essential for its conservation, 
considering the life history, status, and conservation needs of the 
species based on the best available scientific data.
* * * * *
    (d) When several habitats, each satisfying the requirements for 
designation as critical habitat, are located in proximity to one 
another, the Secretary may designate an inclusive area as critical 
habitat.
    (e) The Secretary may designate critical habitat for those species 
listed as threatened or endangered but for which no critical habitat 
has been previously designated. For species listed prior to November 
10, 1978, the designation of

[[Page 7440]]

critical habitat is at the discretion of the Secretary.
    (f) The Secretary may revise existing designations of critical 
habitat according to procedures in this section as new data become 
available.
    (g) The Secretary will not designate critical habitat within 
foreign countries or in other areas outside of the jurisdiction of the 
United States.
    (h) The Secretary will not designate as critical habitat land or 
other geographic areas owned or controlled by the Department of 
Defense, or designated for its use, that are subject to a compliant or 
operational integrated natural resources management plan (INRMP) 
prepared under section 101 of the Sikes Act (16 U.S.C. 670a) if the 
Secretary determines in writing that such plan provides a conservation 
benefit to the species for which critical habitat is being designated. 
In determining whether such a benefit is provided, the Secretary will 
consider:
    (1) The extent of the area and features present;
    (2) The type and frequency of use of the area by the species;
    (3) The relevant elements of the INRMP in terms of management 
objectives, activities covered, and best management practices, and the 
certainty that the relevant elements will be implemented; and
    (4) The degree to which the relevant elements of the INRMP will 
protect the habitat from the types of effects that would be addressed 
through a destruction-or-adverse-modification analysis.

    Dated: January 29, 2016.
 Michael J. Bean,
Principal Deputy Assistant Secretary for Fish and Wildlife and Parks.
    Dated: January 29, 2016.
Samuel D. Rauch, III,
Deputy Assistant Administrator for Regulatory Programs, National Marine 
Fisheries Service.
[FR Doc. 2016-02680 Filed 2-10-16; 8:45 am]
 BILLING CODE 4310-55-P; 3510-22-P



                                                                                                      Vol. 81                           Thursday,
                                                                                                      No. 28                            February 11, 2016




                                                                                                      Part II


                                                                                                      Department of the Interior
                                                                                                      Fish and Wildlife Service



                                                                                                      Department of Commerce
                                                                                                      National Marine Fisheries Service
                                                                                                      50 CFR Part 424
                                                                                                      Listing Endangered and Threatened Species and Designating Critical
                                                                                                      Habitat; Implementing Changes to the Regulations for Designating Critical
                                                                                                      Habitat; Final Rule
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                                                 7414             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                 DEPARTMENT OF THE INTERIOR                              inspection, by appointment, during                    homeland-security impacts and military
                                                                                                         normal business hours at: U.S. Fish and               lands, Federal lands, and economic
                                                 Fish and Wildlife Service                               Wildlife Service, Division of                         impacts in the exclusion process. This
                                                                                                         Conservation and Classification, 5275                 final policy complements the revised
                                                 DEPARTMENT OF COMMERCE                                  Leesburg Pike; Falls Church, VA 22041–                regulations at 50 CFR part 424 and
                                                                                                         0041, telephone 703/358–2171;                         clarifies expectations regarding critical
                                                 National Marine Fisheries Service                       facsimile 703/358–1735 and National                   habitat, and provides for a more
                                                                                                         Marine Fisheries Service, Office of                   predictable and transparent exclusion
                                                 50 CFR Part 424                                         Protected Resources, 1315 East-West                   process. The policy is published under
                                                 [Docket No. FWS–HQ–ES–2012–0096;                        Highway, Silver Spring, MD 20910,                     RIN 1018–AX87 and 0648–BB82 and
                                                 Docket No. 120106025–5640–03;                           telephone 301–713–1401; facsimile                     may be found on http://
                                                 4500030114]                                             301–713–0376.                                         www.regulations.gov at Docket No.
                                                                                                         FOR FURTHER INFORMATION CONTACT:                      FWS–R9–ES–2011–0104.
                                                 RIN 1018–AX86; 0648–BB79
                                                                                                         Douglas Krofta, U.S. Fish and Wildlife                Background
                                                 Listing Endangered and Threatened                       Service, Division of Conservation and
                                                                                                                                                                  The Endangered Species Act of 1973,
                                                 Species and Designating Critical                        Classification, 5275 Leesburg Pike, Falls
                                                                                                                                                               as amended (16 U.S.C. 1531 et seq.),
                                                 Habitat; Implementing Changes to the                    Church, VA 22041, telephone 703/358–
                                                                                                                                                               states that the purposes of the Act are
                                                 Regulations for Designating Critical                    2527; facsimile 703/358–1735; or Marta
                                                                                                                                                               to provide a means to conserve the
                                                 Habitat                                                 Nammack, National Marine Fisheries
                                                                                                                                                               ecosystems upon which listed species
                                                                                                         Service, Office of Protected Resources,
                                                 AGENCY:   U.S. Fish and Wildlife Service,                                                                     depend, to develop a program for the
                                                                                                         1315 East-West Highway, Silver Spring,
                                                 Interior; National Marine Fisheries                                                                           conservation of listed species, and to
                                                                                                         MD 20910, telephone 301/427–8469;                     achieve the purposes of certain treaties
                                                 Service, Commerce.                                      facsimile 301/713–0376. If you use a                  and conventions. Moreover, the Act
                                                 ACTION: Final rule.                                     telecommunications device for the deaf                states that it is the policy of Congress
                                                                                                         (TDD), call the Federal Information                   that the Federal Government will seek
                                                 SUMMARY:    We, the U.S. Fish and                       Relay Service (FIRS) at 800–877–8339.
                                                 Wildlife Service (FWS) and the National                                                                       to conserve threatened and endangered
                                                                                                         SUPPLEMENTARY INFORMATION: This                       species, and use its authorities to further
                                                 Marine Fisheries Service (NMFS)
                                                                                                         document is one of three listed below,                the purposes of the Act.
                                                 (collectively referred to as the
                                                                                                         of which two are final rules and one is                  In passing the Act, Congress viewed
                                                 ‘‘Services’’ or ‘‘we’’), amend portions of
                                                                                                         a final policy:                                       habitat loss as a significant factor
                                                 our regulations that implement the                         • A final rule that amends the
                                                 Endangered Species Act of 1973, as                                                                            contributing to species endangerment.
                                                                                                         regulations governing section 7                       Habitat destruction and degradation
                                                 amended (Act). The revised regulations                  consultation under the Endangered
                                                 clarify, interpret, and implement                                                                             have been a contributing factor causing
                                                                                                         Species Act to revise the definition of               the decline of a majority of species
                                                 portions of the Act concerning the                      ‘‘destruction or adverse modification’’ of
                                                 procedures and criteria used for adding                                                                       listed as threatened or endangered
                                                                                                         critical habitat. The previous regulatory             species under the Act (Wilcove et. al.
                                                 species to the Lists of Endangered and                  definition had been invalidated by                    1998). The present or threatened
                                                 Threatened Wildlife and Plants and                      several courts for being inconsistent                 destruction, modification, or
                                                 designating and revising critical habitat.              with the language of the Act. That final              curtailment of a species’ habitat or range
                                                 Specifically, the amendments make                       rule amends title 50 of the Code of                   is included in the Act as one of the
                                                 minor edits to the scope and purpose,                   Federal Regulations (CFR) at part 402.                factors on which to base a determination
                                                 add and remove some definitions, and                    The Regulation Identifier Numbers                     of threatened or endangered species
                                                 clarify the criteria and procedures for                 (RINs) are 1018–AX88 and 0648–BB80,                   status. One of the tools provided by the
                                                 designating critical habitat. These                     and the final rule may be found on                    Act to conserve species is the
                                                 amendments are based on the Services’                   http://www.regulations.gov at Docket                  designation of critical habitat.
                                                 review of the regulations and are                       No. FWS–R9–ES–2011–0072.                                 The purpose of critical habitat is to
                                                 intended to clarify expectations                           • A final rule that amends the                     identify the areas that are essential to
                                                 regarding critical habitat and provide for              regulations governing the designation of              the species’ recovery. Once critical
                                                 a more predictable and transparent                      critical habitat under section 4 of the               habitat is designated, it can contribute
                                                 critical habitat designation process.                   Act. A number of factors, including                   to the conservation of listed species in
                                                 Finally, the amendments are also part of                litigation and the Services’ experiences              several ways. Specifying the geographic
                                                 the Services’ response to Executive                     over the years in interpreting and                    location of critical habitat facilitates
                                                 Order 13563 (January 18, 2011), which                   applying the statutory definition of                  implementation of section 7(a)(1) of the
                                                 directs agencies to review their existing               ‘‘critical habitat,’’ highlighted the need            Act by identifying areas where Federal
                                                 regulations and, among other things,                    to clarify or revise the regulations. This            agencies can focus their conservation
                                                 modify or streamline them in                            final rule (this document) amends 50                  programs and use their authorities to
                                                 accordance with what has been learned.                  CFR part 424. It is published under RINs              further the purposes of the Act.
                                                 DATES: Effective date: This rule is                     1018–AX86 and 0648–BB79 and may be                    Designating critical habitat also helps
                                                 effective March 14, 2016. Applicability                 found on http://www.regulations.gov at                focus the conservation efforts of other
                                                 date: This rule applies to rules for                    Docket No. FWS–HQ–ES–2012–0096 or                     conservation partners, such as State and
                                                 which a proposed rule was published                     at Docket No. NOAA–NMFS–2014–                         local governments, nongovernmental
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                                                 after March 14, 2016.                                   0093.                                                 organizations, and individuals.
                                                 ADDRESSES: Public input and a list of                      • A final policy pertaining to                     Furthermore, when designation of
                                                 references cited for this final rule are                exclusions from critical habitat and how              critical habitat occurs near the time of
                                                 available on the Internet at http://                    we consider partnerships and                          listing, it provides a form of early
                                                 www.regulations.gov. Supporting                         conservation plans, conservation plans                conservation planning guidance (e.g.,
                                                 documentation used in the preparation                   permitted under section 10 of the Act,                identifying some of the areas that are
                                                 of this rule will be available for public               Tribal lands, national-security and                   needed for recovery, the physical and


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                                                                  Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations                                         7415

                                                 biological features needed for the                      Federal Register for codification in the                 Our Response: We have reviewed the
                                                 species’ life history, and special                      Code of Federal Regulations (77 FR                    edits provided and, where appropriate,
                                                 management considerations or                            25611). That final rule revised 50 CFR                we have incorporated them into this
                                                 protections) to bridge the gap until the                424.12(c) to make the process of                      final regulation. The more specific
                                                 Services can complete recovery                          designating critical habitat more user-               comments and edits are addressed
                                                 planning.                                               friendly for affected parties, the public             below.
                                                    In addition to serving as an                         as a whole, and the Services, as well as                 (2) Comment: Several comments
                                                 educational tool, the designation of                    more efficient and cost effective. Since              stated that the proposed changes to the
                                                 critical habitat also provides a                        the final rule became effective on May                regulation would vastly expand the area
                                                 significant regulatory protection—the                   31, 2012, the Services have continued                 of critical habitat designation, in direct
                                                 requirement that Federal agencies                       the publication of maps of proposed and               conflict with using the critical habitat
                                                 ensure, in consultation with the                        final critical habitat designations in the            designation as a conservation tool.
                                                 Services under section 7(a)(2) of the Act,              Federal Register, but the inclusion of                   Our Response: The proposed changes
                                                 that their actions are not likely to                    any textual description of the                        to the regulation are not likely to vastly
                                                 destroy or adversely modify critical                    designation boundaries in the Federal                 expand the areas included in any
                                                 habitat. The Federal Government,                        Register for codification in the Code of              particular critical habitat designation.
                                                 through its role in water management,                   Federal Regulations is optional. Because              Many commenters focused on the
                                                 flood control, regulation of resources                  we revised 50 CFR 424.12(c) separately,               inclusion of unoccupied areas or
                                                 extraction and other industries, Federal                we do not discuss that paragraph further              perception that the proposed changes
                                                 land management, and the funding,                       in this final rule.                                   expand the Services’ authority to
                                                 authorization, and implementation of                                                                          include such areas in a critical habitat
                                                                                                            On August 28, 2013, the Services
                                                 myriad other activities, may propose                                                                          designation. Section 3(5)(A) of the Act
                                                                                                         finalized revisions to the regulations for
                                                 actions that are likely to affect critical                                                                    expressly allows for the consideration
                                                                                                         impact analyses of critical habitat (78
                                                 habitat. The designation of critical                                                                          and inclusion of unoccupied habitat in
                                                                                                         FR 53058). These changes were made as
                                                 habitat ensures that the Federal                                                                              a critical habitat designation if such
                                                                                                         a result of the President’s February 28,
                                                 Government considers the effects of its                                                                       habitat is determined to be essential for
                                                                                                         2012, Memorandum, which directed us
                                                 actions on habitat important to species’                                                                      the conservation of the species.
                                                                                                         to take prompt steps to revise our                    However, the existing implementing
                                                 conservation and avoids or modifies
                                                                                                         regulations to provide that the economic              regulations state that such unoccupied
                                                 those actions that are likely to destroy
                                                                                                         analysis be completed and made                        habitat can be considered only if a
                                                 or adversely modify critical habitat.
                                                                                                         available for public comment at the time              determination is made that the
                                                 This benefit is especially valuable
                                                                                                         of publication of a proposed rule to                  Service(s) cannot recover the species
                                                 when, for example, species presence or
                                                                                                         designate critical habitat. These                     with the inclusion of only the
                                                 habitats are ephemeral in nature,
                                                                                                         revisions also state that the impact                  ‘‘geographical area presently occupied’’
                                                 species presence is difficult to establish
                                                                                                         analysis should focus on the                          by the species, which is generally
                                                 through surveys (e.g., when a plant’s
                                                 ‘‘presence’’ is sometimes limited to a                  incremental effects resulting from the                understood to refer to habitat occupied
                                                 seed bank), or protection of unoccupied                 designation of critical habitat. Because              at the time of listing (50 CFR 424.12(e)).
                                                 habitat is essential for the conservation               we have revised 50 CFR 424.19                         As discussed in the proposed rule, we
                                                 of the species.                                         separately, we do not discuss that                    have determined that the provision is an
                                                    The Secretaries of the Interior and                  section further in this final rule.                   unnecessary and redundant limitation
                                                 Commerce (the ‘‘Secretaries’’) share                    Summary of Comments and                               on the use of an important conservation
                                                 responsibilities for implementing most                  Recommendations                                       tool. Further, we have learned from
                                                 of the provisions of the Act. Generally,                                                                      years of implementing the critical
                                                 marine and anadromous species are                         In the proposed rule published on                   habitat provisions of the Act that a rigid
                                                 under the jurisdiction of the Secretary of              May 12, 2014 (79 FR 27066), we                        step-wise approach, i.e., first
                                                 Commerce and all other species are                      requested that all interested parties                 designating all occupied areas that meet
                                                 under the jurisdiction of the Secretary of              submit written comments on the                        the definition of ‘‘critical habitat’’
                                                 the Interior. Authority to administer the               proposal by July 11, 2014. We also                    (assuming that no unoccupied habitat is
                                                 Act has been delegated by the Secretary                 contacted appropriate Federal and State               designated) and then, only if that is not
                                                 of the Interior to the Director of FWS                  agencies, scientific experts and                      enough, designating essential
                                                 and by the Secretary of Commerce to the                 organizations, and other interested                   unoccupied habitat may not be the best
                                                 Assistant Administrator for Fisheries.                  parties, and invited them to comment                  conservation strategy for the species and
                                                    There have been no comprehensive                     on the proposal. We did not receive any               in some circumstances may result in a
                                                 amendments to the Act since 1988, and                   requests for a public hearing. We did                 designation that is geographically larger,
                                                 no comprehensive revisions to part 424                  receive several requests for an extension             but less effective as a conservation tool.
                                                 of the implementing regulations since                   of the public comment period, and on                  Our proposed change will allow us to
                                                 1984. In the years since those changes                  June 26, 2014 (79 FR 36284), we                       consider the inclusion of occupied and
                                                 took place, the Services have gained                    extended the public comment period to                 unoccupied areas in a critical habitat
                                                 considerable experience in                              October 9, 2014. All substantive                      designation following any general
                                                 implementing the critical habitat                       information provided during the                       conservation strategy that has been
                                                 requirements of the Act, and there have                 comment periods has either been                       developed for the species. In some cases
                                                 been numerous court decisions                           incorporated directly into this final                 (e.g., wide ranging species like the
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                                                 regarding the designation of critical                   determination or addressed in the more                spotted owl or lynx), we have found and
                                                 habitat.                                                specific response to comments below.                  expect that we will continue to find that
                                                    On May 1, 2012, the Services                                                                               the inclusion of all occupied habitat in
                                                                                                         General Issues
                                                 finalized the revised implementing                                                                            a designation does not support the best
                                                 regulations related to publishing textual                 (1) Comment: Several commenters,                    conservation strategy for a species. We
                                                 descriptions of proposed and final                      including several States, provided edits              expect that the concurrent evaluation of
                                                 critical habitat boundaries in the                      to the proposed regulation.                           occupied and unoccupied areas for a


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                                                 7416             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                 critical habitat designation will allow us              Act. The Services are exercising their                provide notice and comment under the
                                                 to develop more precise and deliberate                  discretion to resolve ambiguities and fill            Act and the Administrative Procedure
                                                 designations that can serve as more                     gaps in the statutory language, and the               Act (APA).
                                                 effective conservation tools, focusing                  amended regulations are a permissible                   (7) Comment: Several tribes
                                                 conservation resources where needed                     interpretation of the statute.                        commented that traditional ecological
                                                 and minimizing unnecessary regulatory                      (5) Comment: Several commenters                    knowledge should constitute the best
                                                 burdens.                                                were concerned that the changes would                 scientific data available and be used by
                                                    (3) Comment: Several commenters                      lead to extensive litigation because the              the Services.
                                                 including one State noted that recovery                 Services failed to establish clear,                     Our Response: Traditional ecological
                                                 planning and critical habitat designation               measurable, and enforceable criteria for              knowledge (TEK) is important and
                                                 are two different processes. A                          what should or should not be                          useful information that can inform us as
                                                 commenter also asked how the Services                   considered ‘‘habitat’’ for a given species,           to the status of a species, historical and
                                                 will ‘‘infer’’ that unoccupied areas will               let alone whether an area should or                   current trends, and threats that may be
                                                 eventually become necessary for                         should not be considered critical habitat             acting on it or its habitat. The Services
                                                 recovery given that recovery plans do                   under the Act.                                        have often used TEK to inform decisions
                                                 not exist at the time of listing and when                  Our Response: The amended                          under the Act regarding listings, critical
                                                 it is not appropriate to designate                      regulations do not substantially change               habitat, and recovery. The Act requires
                                                 unoccupied areas that are essential for                 the manner in which critical habitat is               that we use the best scientific and
                                                 recovery.                                               designated. Rather, the amendments                    commercial data available to inform
                                                    Our Response: While we agree that                    primarily clarify how the Services                    decisions to list a species and the best
                                                 the designation of critical habitat and                 already have been developing critical                 scientific data available to inform
                                                 the recovery planning processes are                     habitat designations. We have set forth               designation of critical habitat, and in
                                                 different and guided by two separate                    criteria in the final rule below. We will             some cases TEK may be the best data
                                                 provisions of the Act and implementing                  also refine, to the extent practicable, and           available. The Services cannot
                                                 regulations, the ultimate goal of                       articulate the specific criteria used for             determine, as a general rule, that TEK
                                                 developing effective conservation tools                 identifying which features and areas are              will be the best available data in every
                                                 and measures to recover a listed species                essential to the conservation of a species            rulemaking. However, we will consider
                                                 is the same. A general draft conservation               and the subsequent development of a                   TEK along with other available data,
                                                 strategy or criterion that informs the                  critical habitat designation for each                 weighing all data appropriately in the
                                                 construction of a critical habitat                      species (using the best scientific data               decision process. We will explain the
                                                 designation is often developed in                       available) in the proposed and final                  sources of data, the weight given to
                                                 consultation with staff working in                      critical habitat rules. Our intent is to be           various types of data, and how data are
                                                 recovery planning and implementation                    more transparent about how we define                  used to inform our decision. Further,
                                                 to ensure collaboration, consistency,                   the criteria and any generalized                      any data, including TEK, used by the
                                                 and efficiency as the Services work with                conservation strategy that may have                   Services to support a listing
                                                 the public and partners to recover a                    been used in the development of a                     determination or in the development of
                                                 listed species.                                         critical habitat designation to provide               a critical habitat designation may be
                                                    We have replaced the word ‘‘infer’’                  for a more predictable and transparent                subject to disclosure under the Freedom
                                                 with the word ‘‘determine’’ in our                      critical habitat designation process.                 of Information Act (FOIA).
                                                 preambular discussion to be clearer. We                    (6) Comment: Several commenters                      (8) Comment: One State strongly
                                                 will determine from the record and                      stated that the Services have misled                  advised the Services to withdraw the
                                                 based on any existing conservation                      stakeholders and effectively failed to                Federal Register notice and form a
                                                 strategy for the species if any                         provide adequate notice and                           Policy Advisory group on the issue. The
                                                 unoccupied areas are likely to become                   opportunity for public comment. The                   Western Governors’ Association
                                                 necessary to support the species’                       comments assert that we should                        requested that the rule be reworked in
                                                 recovery. In order to designate                         withdraw our proposal, republish it                   cooperation with Western States and
                                                 unoccupied areas, we are required by                    with a more accurate and clear summary                utilize State data to reach a more legally
                                                 section 3(5)(A) of the Act to determine                 of the changes to the regulations and                 defensible result and to foster
                                                 that such areas are essential for the                   their implications, and provide further               partnerships.
                                                 conservation of the species.                            opportunity for public comment.                         Our Response: We appreciate the
                                                    (4) Comment: Several commenters                         Our Response: The Services have not                interest by the State and Western
                                                 stated that this attempt by the Services                misled stakeholders. We initially                     Governors’ Association to form a policy
                                                 to expand their own discretion and                      provided a 60-day public comment                      advisory group and work collaboratively
                                                 authority without congressional                         period on the proposed rule.In response               with the Services. However, the
                                                 authorization is neither justified nor                  to public comments requesting an                      Services have already coordinated with
                                                 lawful.                                                 extension, we extended the comment                    States, Federal agencies, and partners to
                                                    Our Response: The amended                            period for an additional 90 days. This                develop the amended regulations, and
                                                 regulations do not expand the Services’                 followed extensive coordination and                   do not agree that a Policy Advisory
                                                 discretion. Rather, they clarify the                    discussion with potentially affected                  group is necessary. The Services have
                                                 existing process by which we designate                  Federal agencies, States, and                         relied on input from States and other
                                                 critical habitat based on lessons learned               stakeholders and partners, as well as                 entities, as well as lessons we have
                                                 over many years of implementing                         formal interagency review under                       learned from implementing the
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                                                 critical habitat and relevant case law.                 Executive Order 12866. We also held                   provisions for critical habitat under the
                                                 The amendments synchronize the                          subsequent calls and extensive webinars               Act, to make the regulations consistent
                                                 language in the implementing                            with many stakeholders to further                     with the statute, codify our existing
                                                 regulations with that in the Act to                     inform them about the proposed rule                   practices, and provide greater clarity
                                                 minimize confusion, and clarify the                     and address any questions or concerns                 and flexibility to designate critical
                                                 discretion and authority that Congress                  they may have had at the time. This                   habitat so that it can be a more effective
                                                 provided to the Secretaries under the                   satisfies the Services obligation to                  conservation tool. We will continue


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                                                                  Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations                                        7417

                                                 working collaboratively with Federal,                   Definitions                                           these is a separate category, and only
                                                 State, and private partners to ensure that                 (11) Comment: Several commenters                   recovered species have reached the
                                                 our critical habitat designations are                   including one State asked us to keep the              recovered state contemplated by the
                                                 based on the best available scientific                  definitions for ‘‘critical habitat,’’                 definition of ‘‘conserve, conserving, and
                                                 information and balance the                             ‘‘endangered species,’’ ‘‘plant,’’                    conservation.’’ (See our response to
                                                 conservation needs of the species with                  ‘‘Secretary,’’ ‘‘State Agency,’’ and                  comment 12).
                                                 the considerations permitted under                                                                               (14) Comment: Several commenters
                                                                                                         ‘‘threatened species’’ in the regulation
                                                 section 4(b)(2).                                                                                              stated that proposing to define
                                                                                                         for the purpose of transparency and
                                                                                                                                                               ‘‘geographical area occupied by the
                                                 Scope and Purpose (Section 424.01)                      clarity because they are core definitions
                                                                                                                                                               species’’ is an amendment to the
                                                                                                         in the authorizing statute and are
                                                                                                                                                               definition in the Act and is illegal.
                                                    (9) Comment: Several commenters                      important terms in the regulations.                      Our Response: The Act does not
                                                 including several States suggested that                    Our Response: These terms are                      define the phrase ‘‘geographical area
                                                 we retain the words ‘‘where                             defined in the Act itself, thus repeating             occupied by the species.’’ The Services
                                                 appropriate’’ to qualify the reference to               them verbatim in the implementing                     may develop, clarify, and revise
                                                 designation or revision of critical habitat             regulations is redundant and does not                 regulations implementing the provisions
                                                 as it is a phrase of limiting potential.                resolve any ambiguity.                                of a statute, provided that our
                                                 Some commenters suggested that we                          (12) Comment: Several commenters                   interpretations do not conflict with or
                                                 replace the words with ‘‘unless deemed                  were concerned that the addition of the               exceed the authority provided by the
                                                 imprudent’’ to better clarify the                       phrase ‘‘i.e., the species is recovered’’ to          statute. Since there has been
                                                 intention of this proposed change.                      the definition of ‘‘conserve, conserving,             considerable confusion as to the specific
                                                                                                         and conservation’’ to explain the point               area and scale the phrase refers to, we
                                                    Our Response: As discussed in our                    at which the measures provided under
                                                 proposal, the phrase ‘‘where                                                                                  find that it is important to provide a
                                                                                                         the Act are no longer necessary resulted              reasonable and practicable definition for
                                                 appropriate’’ was misleading and                        in a higher standard for conservation
                                                 implied a greater flexibility than the                                                                        this phrase based on what we have
                                                                                                         than is warranted. Others commented                   learned over the many years of
                                                 Services have regarding whether to                      that the Services are implying that                   implementing critical habitat under the
                                                 designate critical habitat. The Services                conservation of critical habitat is                   Act. Providing this definition will
                                                 have the discretion not to designate                    equated to meeting recovery goals.                    clarify how we designate critical habitat
                                                 critical habitat only for species listed                   Our Response: The use of ‘‘recovered’’             and which areas are considered
                                                 prior to 1978 for which critical habitat                in the definition of ‘‘conserve,                      occupied at the time of listing.
                                                 has not previously been designated or                   conserving, and conservation’’ does not                  (15) Comment: Several States
                                                 where an explicit determination is made                 introduce a new standard for                          commented that the definition of
                                                 that designation is not prudent. Based                  conservation. Rather, it clarifies the                ‘‘geographical area occupied by the
                                                 on our experiences with designating                     existing link between conservation and                species’’ provides no objective criteria,
                                                 critical habitat, a determination that                  recovery. Conservation is the use of all              which will only lead to further
                                                 critical habitat is not prudent is rare.                methods and procedures that are                       confusion and more litigation. One State
                                                 Removing the phrase ‘‘where                             necessary to bring any species to the                 requested that we abandon the
                                                 appropriate’’ still allows the Services to              point at which measures provided by                   definition. Several States offered revised
                                                 determine that critical habitat is not                  the Act are no longer necessary.                      language.
                                                 prudent for a species if such                           Recovery is improvement in the status                    Our Response: The Services are
                                                 determination is supported by the best                  of listed species to the point at which               defining the term ‘‘geographical area
                                                 available scientific information.                       listing is no longer appropriate. Also see            occupied by the species’’ because the
                                                 Replacing it with the phrase ‘‘unless                   our response to comment 2.                            phrase is found in the Act but is not
                                                 deemed imprudent’’ implies that not                        (13) Comment: One commenter stated                 defined in the Act’s regulations, and
                                                 prudent determinations are common,                      that if the ‘‘i.e., the species is recovered’’        because there has been considerable
                                                 which is not our intent. Deleting ‘‘where               is added to the definition of ‘‘conserve,             confusion over the proper interpretation
                                                 appropriate’’ provides the necessary                    conserving, and conservation,’’ then the              of the phrase. We have clearly stated
                                                 clarification concerning the discretion                 Services should also add the phrase ‘‘or              and explained the definition in our
                                                 the Services have in determining when                   extinct’’ since these examples describe               proposal. Further, we will specify the
                                                 to designate critical habitat.                          when the action of conservation (a set                criteria used for identifying which
                                                                                                         of methods and procedures) are not                    features and areas are essential to the
                                                    (10) Comment: Several commenters
                                                                                                         necessary anymore.                                    conservation of a species and the
                                                 suggested that we add the words ‘‘at the
                                                                                                            Our Response: ‘‘Conserve, conserving,              subsequent development of a critical
                                                 appropriate time’’ in place of the words                and conservation’’ is defined in the Act              habitat designation for each species
                                                 ‘‘where appropriate’’ to qualify the                    as to use and the use of all methods and              (using the best scientific data available)
                                                 reference to designation or revision of                 procedures which are necessary to bring               in the proposed and final rules for a
                                                 critical habitat in § 424.01(a).                        any endangered species or threatened                  particular critical habitat designation.
                                                    Our Response: The Services are                       species to the point at which the                     Our intent is to be more clear and
                                                 required under section 4(a)(3)(A) of the                measures provided pursuant to this Act                transparent about how we define the
                                                 Act to designate critical habitat, to the               are no longer necessary. Extinction does              criteria and any generalized
                                                 maximum extent prudent and                              not meet this definition because extinct              conservation strategy that may have
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                                                 determinable, at the time a species is                  species have not been brought to the                  been used in the development of a
                                                 listed. The inclusion of the phrase ‘‘at                point at which listing is no longer                   critical habitat designation to enhance
                                                 the appropriate time’’ and the                          necessary. Our regulations at § 424.11(d)             its use as a conservation tool.
                                                 implication that the Services have                      state that a species may be delisted for                 (16) Comment: One State commented
                                                 flexibility regarding the timing of the                 one or more of the following reasons: (1)             that ‘‘regular or consistent use’’ is a
                                                 designation process runs counter to the                 Extinction; (2) Recovery; (3) Original                hallmark of a finding of occupied
                                                 statutory text.                                         data for classification in error. Each of             habitat, and should be required by the


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                                                 7418             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                 ‘‘geographical area occupied by the                     which can be occupied by the                          best scientific data available to
                                                 species’’ definition, not excluded. The                 threatened or endangered species.’’                   determine whether an area is used by a
                                                 State pointed to the decision in Arizona                   Our Response: The regulatory                       species for part of its life cycle versus
                                                 Cattle Growers’ Ass’n v. Salazar, 606                   definition is intended to clarify how we              an individual vagrant’s life cycle. The
                                                 F.3d 1160 (9th Cir. 2010), in which the                 interpret the phrase, not to repeat the               basis for our determination on this point
                                                 court upheld the application of the                     language of the statute. Further,                     will be articulated in our proposed and
                                                 Service’s definition of occupied habitat                paragraph 3(5)(C) in the Act, applies to              final rules designating critical habitat
                                                 for the Mexican spotted owl as ‘‘areas                  the geographic area that can be                       for a particular species and subject to
                                                 that the owl uses with sufficient                       occupied by a species, as opposed to the              public review and comments, as well as
                                                 regularity that it is likely to be present              geographic area actually occupied by                  peer review.
                                                 during any reasonable span of time.’’                   the species.                                             (20) Comment: Several commenters
                                                 Another State similarly commented that                     (18) Comment: Several commenters                   suggested that we add the word
                                                 the use of the term ‘‘even if not used on               including several States stated that the              ‘‘regularly’’ to the sentence ‘‘Such areas
                                                 a regular basis’’ in the definition of                  definition of ‘‘geographical area                     may include those areas used regularly
                                                 geographical area occupied by the                       occupied by the species’’ provides                    throughout all or part of the species’ life
                                                 species will now enable the Services to                 unlimited discretion and authority to                 cycle’’ in the definition of ‘‘geographical
                                                 designate critical habitat within areas                 the Secretary to determine the                        area occupied by the species.’’
                                                 infrequently used by a species.                         boundaries and size of the critical                      Our Response: The suggested addition
                                                    Our Response: We respectfully                        habitat area.                                         would conflict with the second part of
                                                 disagree with the commenter that the                       Our Response: While we agree that                  the sentence, in which we state ‘‘even
                                                 definition of ‘‘geographical area                       the Secretaries are afforded significant              if not used on a regular basis (e.g.,
                                                 occupied by the species’’ should be                     discretion and authority to define and                migratory corridors, seasonal habitats,
                                                 limited to only those areas in which the                designate critical habitat, we                        and habitats used periodically, but not
                                                 use by the species is ‘‘regular or                      respectfully disagree with the                        solely by vagrant individuals).’’ If the
                                                 consistent.’’ As discussed at length in                 commenter that the discretion and                     best scientific data available indicates
                                                 our proposal, we find that the phrase                   authority is unlimited. First, critical               that these areas are used periodically
                                                 ‘‘geographical area occupied by the                     habitat is to be defined and designated               during some portion of the listed
                                                 species’’ should also include areas that                based on the best scientific data                     species’ life history, then these areas
                                                 the species uses on an infrequent basis                 available. Second, we have learned from               should be considered in the
                                                 such as ephemeral or migratory habitat                  years of implementing the critical                    development of a critical habitat
                                                 or habitat for a specific life-history                  habitat provisions of the Act that often              designation.
                                                 phase. We find that this more inclusive                 a rigid step-wise approach, i.e., first                  (21) Comment: Several commenters
                                                 interpretation is consistent with                       designating all occupied areas that meet              questioned what would happen to the
                                                 legislative history and Arizona Cattle                  the definition of ‘‘critical habitat’’                size, shape, and location of critical
                                                 Growers’ Ass’n v. Salazar, 606 F.3d                     (assuming that no unoccupied habitat is               habitat areas that were designated in
                                                 1160 (9th Cir. 2010), and congressional                 designated) and then, only if that is not             areas that were not regularly used as
                                                 intent. Additionally, based on our                      enough, designating essential                         conditions change and travel corridors
                                                 experience of implementing the                          unoccupied habitat, may not be the best               shift or breeding areas move.
                                                 provisions of critical habitat for many                 conservation strategy for the species and                Our Response: As discussed in our
                                                 years, we have found that there has been                in some circumstances may result in a                 proposal and throughout this final rule,
                                                 considerable confusion and differing                    designation that is geographically larger,            critical habitat is to be based on the best
                                                 interpretations of this phrase. Our intent              but less effective as a conservation tool.            scientific data available, and to the
                                                 through the definition provided in our                  By providing a definition of                          maximum extent prudent and
                                                 proposal was to provide greater clarity                 ‘‘geographical areas occupied by the                  determinable promulgated concurrent
                                                 regarding how we interpret the phrase                   species’’ along with the other revisions              with the listing of a species. Often at the
                                                 and the general scale at which we define                and clarifications in our proposal, we                time of listing when we are developing
                                                 occupancy. We give examples in the                      can be more precise and deliberate in                 a designation of critical habitat for a
                                                 rule of areas such as migratory                         the development of our critical habitat               species, we may have only limited data
                                                 corridors, seasonal habitats, and habitats              designations following any general                    concerning the distribution of the
                                                 used periodically (but not solely by                    conservation strategy that has been                   species, its life-history requirements,
                                                 vagrant individuals). We will use the                   developed for the species. Lastly, we are             and other factors that can inform the
                                                 best scientific data available to                       still bound by paragraph 3(5)(C) (see                 identification of features or specific
                                                 determine if such areas occur for a                     response to Comment 17 above).                        areas essential to the conservation of the
                                                 species. Each species’ life cycle is                       (19) Comment: Several commenters                   species. Such limited data may still be
                                                 different and the details of such areas,                asked, ‘‘What standards will be in place              the best scientific data available. The
                                                 if they exist, would be explained in the                to substantiate that such areas are used              Services are required in a proposed and
                                                 proposed and final rules designating                    as part of a species’ life cycle and not              final designation of critical habitat to
                                                 critical habitat for a particular species.              just an individual vagrant’s life cycle’’             clearly articulate what data are being
                                                 These areas would also have to meet the                 in the definition of ‘‘geographical area              used and the criteria for defining the
                                                 criteria for occupied areas in the                      occupied by the species.’’ Several States             specific essential features and areas. The
                                                 definition of critical habitat found in the             also commented that the vagrant animal                Services must also allow for public
                                                 Act.                                                    exception in the rule is vague and                    review and comments on the proposal
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                                                    (17) Comment: One commenter stated                   subject to varying interpretations                    to ensure public involvement in the
                                                 that the definition of ‘‘geographical area              because no definition of ‘‘vagrant’’ is               process and provide as much clarity and
                                                 occupied by the species’’ fails to include              provided.                                             transparency as possible. The
                                                 paragraph 3(5)(C) from the Act: ‘‘Except                   Our Response: As stated in our                     designation of critical habitat results in
                                                 in those circumstances determined by                    proposed rule, vagrant individuals are                a regulation in which the boundaries of
                                                 the Secretary, critical habitat shall not               species who wander far from the known                 critical habitat for a species are defined.
                                                 include the entire geographical area                    range of the species. We will use the                 These boundaries can be changed only


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                                                                  Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations                                        7419

                                                 through rulemaking. Thus, if habitat                    though a thorough review of the                       features’’ definition has too many if and
                                                 changes following a designation, such                   decision reveals the court did not hold               if/then scenarios that appear too
                                                 that those specific areas no longer meet                or find that the Act allows the Services              scientifically attenuated to serve as an
                                                 the definition of ‘‘critical habitat,’’ the             to make a post-listing determination of               appropriate basis for critical habitat
                                                 areas within the boundaries of critical                 occupancy if based on adequate data,                  designations.
                                                 habitat are still critical habitat until                simply because the court did not decide                  Our Response: In defining physical
                                                 such time as a revision to the                          that particular issue.                                and biological features, we provided
                                                 designation is promulgated. Any                            Our Response: We agree that the D.C.               examples of types of features and
                                                 interested party may file a petition with               Circuit did not hold or find that the ESA             conditions that we have found to be
                                                 the Services to request revision of a                   allows the Services to make a post-                   essential to certain species based on
                                                 critical habitat designation.                           listing determination of occupancy. Our               experience over many years of
                                                    (22) Comment: A number of                            proposed rule, however, did not assert                designating critical habitat for a wide
                                                 commenters, including several States,                   that the circuit court opinion supported              variety of species. The determination of
                                                 asserted that the proposed definition of                our interpretation. Instead, the proposed             specific features essential to the
                                                 ‘‘geographical area occupied by the                     rule correctly noted that the district                conservation of a particular species will
                                                 species’’ is so vague it could lead to                  court opinion supported our                           be based on the best scientific data
                                                 huge areas of unoccupied and                            interpretation. See 714 F. Supp. 2d at 83             available and explained in the proposal
                                                 potentially unsuitable habitat being                    (‘‘The question, therefore, is not                    to designate critical habitat for that
                                                 designated as critical habitat that would               whether FWS knew in 1997, when it                     species, which will be available for
                                                 result in the public or the regulated                   listed the San Diego fairy shrimp as                  public comment and peer review.
                                                 community having no consistency.                        endangered, that there were San Diego                    (26) Comment: Several States
                                                    Our Response: The proposed                           fairy shrimp on Plaintiffs’ property but,             commented that the new definition of
                                                 definition would not lead to more                       rather, whether FWS reasonably                        ‘‘physical or biological features’’ is
                                                 expansive critical habitat designations.                concluded, based on data from 2001,                   excessively broad and completely
                                                 We do not designate areas that are                      that the shrimp had been on the                       unnecessary. They stated that the new
                                                 occupied at the time of listing unless                  property in 1997.’’). Because that                    definition goes too far and allows the
                                                 those areas have one or more of the                     decision was reversed by the D.C.                     Services to include areas that do not
                                                 physical or biological features present                 Circuit, however, we needed to explain                currently have any essential physical or
                                                 that are essential to the conservation of               what effect that D.C. Circuit’s decision              biological features necessary for a
                                                 the species and may require special                     had on the district court opinion with                species; they asserted that the original
                                                 management considerations or                            respect to this issue. Because the D.C.               language of the Act provides enough
                                                 protection. Any unoccupied habitat at                   Circuit reversed the district court’s                 latitude to allow for ephemeral,
                                                 the time of listing could only be                       opinion on other grounds (i.e., that the              essential habitat requirements. Two
                                                 designated critical habitat under section               evidence in the record was inadequate),               States also asked the Services to more
                                                 3(5)(A)(ii) of the Act, which requires a                the D.C. Circuit did not address the                  clearly define the phrase ‘‘reasonable
                                                 determination by the Secretary that such                interpretive issue of whether later data              expectation’’ found in the preamble
                                                 areas are essential for the conservation                can support a determination of                        discussion (‘‘the Services could
                                                 of the species. Further, we will                        occupancy at the time of listing. Thus,               conclude that essential physical or
                                                 articulate the specific criteria used for               we stated, accurately, that the D.C.                  biological features exist in a specific
                                                 identifying which features and areas are                Circuit ‘‘did not disagree’’ with this                area . . . if there were documented
                                                 essential to the conservation of a species              aspect of the district court’s opinion. We            occurrences of the particular habitat
                                                 during the subsequent development of a                  did not mean to suggest that the D.C.                 type in the area and a reasonable
                                                 critical habitat designation for each                   Circuit had considered and affirmed this              expectation of that habitat occurring
                                                 species (using the best scientific data                 aspect of the district court’s opinion.               again’’).
                                                 available) in the proposed and final                       (24) Comment: One State commented                     Our Response: Because the term
                                                 rules designating critical habitat for that             that the Service’s reliance on the                    ‘‘physical or biological features’’ is not
                                                 species. Our intent is to be more clear                 decision in Arizona Cattle Growers’                   defined in the Act, the Services clarify
                                                 and transparent about how we define                     Assoc. v. Salazar, 606 F.3d 1160 (9th                 how they have been using this term. A
                                                 the criteria for designation and how in                 Cir. 2010), to expand the definition of               ‘‘reasonable expectation’’ would be
                                                 the development of a critical habitat                   ‘‘occupied’’ is misplaced because the                 based on the best scientific data
                                                 designation we use any generalized                      Services oversimplify and misstate the                available showing that the habitat has a
                                                 conservation strategy that may have                     court’s ruling. The State provided                    temporal or cyclical nature in that in
                                                 been developed for the species. The                     additional detail regarding the court’s               some years particular habitat elements
                                                 proposed rule would inform the public,                  analysis, noting a variety of factors that            may not be present, but the record
                                                 including landowners and businesses,                    the court suggested were relevant to a                indicates that, once certain conditions
                                                 of our critical habitat designation and                 case-by-case determination of                         are met, the habitat will recur and be
                                                 allow them time to review and provide                   occupancy, and the court’s emphasis on                used by the species.
                                                 comments.                                               reasonableness.                                          (27) Comment: One State contended
                                                    (23) Comment: Two States                                Our Response: None of the detail                   that the Services support the new
                                                 commented that the Services have                        provided by the State is inconsistent                 definition of ‘‘physical or biological
                                                 justified the new definition of                         with our summary of the holding: ‘‘a                  features’’ with a flawed interpretation of
                                                 ‘‘geographical area occupied by the                     determination that a species was likely               the opinion in Cape Hatteras Access
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                                                 species’’ by misrepresenting the court’s                to be temporarily present in the areas                Preservation Alliance v. DOI, 344 F.
                                                 decision in Otay Mesa Property L.P. v.                  designated as critical habitat was a                  Supp. 2d 108 (D.D.C. 2004). According
                                                 DOI, 646 F.3d 914 (D.C. Cir. 2011),                     sufficient basis for determining those                to the State: That opinion does not
                                                 reversing 714 F. Supp. 2d 73 (D.D.C.                    areas to be occupied, even if the species             justify expanding the meaning and
                                                 2010). The States contend that we                       was not continuously present.’’                       breadth of the phrase; the Services
                                                 asserted that the D.C. Circuit’s decision                  (25) Comment: One commenter                        should withdraw the definition because
                                                 supported our interpretation, even                      asserted that the ‘‘physical or biological            the Services cite no authority for making


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                                                 7420             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                 such a change and thus lack any                            Our Response: We determine whether                 presence of physical or biological
                                                 justification for doing so; the Court                   unoccupied areas are essential for the                features is not required by the statute for
                                                 explicitly rejected the Service’s attempt               conservation of the species by                        the inclusion of unoccupied areas in a
                                                 to broaden the scope of critical habitat                considering the best available scientific             designation of critical habitat.
                                                 designation; and the Services should not                data regarding the life-history, status,              Incorporating the edit suggested by the
                                                 attempt to expand their authority by                    and conservation needs of the species,                commenter would limit Secretarial
                                                 circumventing the Federal courts.                       which include considerations similar to               discretion in a way inconsistent with
                                                    Our Response: The district court                     those raised by the commenter.                        the statute by mandating the presence of
                                                 rejected the U.S. Fish and Wildlife                     However, we do not agree that the                     essential features as a prerequisite to
                                                 Service’s critical habitat designation for              specific findings suggested by the                    inclusion of unoccupied areas in a
                                                 the piping plover as including lands                    commenter either are required under the               critical habitat designation. Therefore, it
                                                 that did not currently contain the                      statute or are useful limitations for the             would be inappropriate to use the term
                                                 features defined in the rule, but noted                 Services to impose on themselves.                     ‘‘physical or biological features’’ in this
                                                 that it was not addressing whether                      Further, our rationale for why                        section.
                                                 dynamic land capable of supporting                      unoccupied areas are essential for the                   (32) Comment: Several commenters
                                                 plover habitat can itself be one of the                 conservation of the species will be                   stated that the Services’ claim that they
                                                 physical or biological features essential               articulated in the proposed rule                      may designate acres or even square
                                                 to the conservation of the plover. The                  designating critical habitat for a                    miles without evidence that those areas
                                                 court noted that the Service had not                    particular species and available for                  contain features essential to the
                                                 made that assertion in the context of the               public review and comment. Finally, we                conservation of the species is contrary
                                                 piping plover designation. To address                   decline to remove the language ‘‘at a                 to the Act. Two States commented that
                                                 this unintentional gap, we are setting                  scale determined by the Secretary to be               the scale of critical habitat should not be
                                                 out our interpretation as part of the                   appropriate because we have concluded                 left to the Secretary’s absolute discretion
                                                 framework regulations. This new                         that it is useful to clarify that different           and must be chosen and justified at a
                                                 definition clarifies that features can be               circumstances will require different                  scale that both makes sense in terms of
                                                 dynamic or ephemeral habitat                            scales of analysis, and the Secretary                 the habitat needs of the species and is
                                                 characteristics. We clearly state in the                retains the discretion to choose an                   fine enough to demonstrate that the
                                                 rule that an area within the geographical               appropriate scale.                                    physical or biological features are found
                                                 area occupied by the species, with                         (30) Comment: A commenter                          in each specific area of occupied
                                                 habitat that is not ephemeral by nature                 suggested that we add the phrase ‘‘based              habitat. One State also provided revised
                                                 but that has been degraded in some way,                 on the best scientific data available’’               language for § 424.12(b)(1) by replacing
                                                 must have one or more of the features                   after the word ‘‘appropriate’’ in ‘‘the               ‘‘at a scale determined by the Secretary
                                                 at the time of designation to be critical               Secretary will identify, at a scale                   to be appropriate’’ with ‘‘at a scale
                                                                                                         determined by the Secretary to be                     consistent with the geographical extent
                                                 habitat.
                                                                                                         appropriate’’ in § 424.12(b)(2). The                  of the physical or biological features
                                                    (28) Comment: Several commenters
                                                                                                         commenter further stated that this                    essential to the species’ conservation.’’
                                                 recommended that the Services                                                                                    Our Response: We state in the
                                                                                                         provides a reference to the scientific
                                                 separately define ‘‘physical features’’                                                                       proposed regulation that the Secretary
                                                                                                         basis on which the Secretary will
                                                 and ‘‘biological features’’ to provide                  determine this scale.                                 need not determine that each square
                                                 greater clarity.                                           Our Response: The phrase ‘‘based on                inch, yard, acre, or even mile
                                                    Our Response: The Act refers to                      the best scientific data available’’ is               independently meets the definition of
                                                 ‘‘physical or biological features,’’ so it is           captured in § 424.12(b)(1)(ii). Under                 critical habitat. However, setting out
                                                 not necessary to define them separately.                section 4(b)(2) of the statute, it also               defined guidelines for the scale of an
                                                 We find that the definition provided in                 states that the Secretary shall designate             analysis in regulations would not be
                                                 the draft proposal along with the                       critical habitat, and make revisions                  practicable for the consideration of
                                                 examples and accompanying                               thereto, under subsection (a)(3) on the               highly diverse biological systems and
                                                 explanation provides sufficient clarity                 basis of the best scientific data available.          greatly differing available data. Each
                                                 and that separately defining these terms                It would be redundant to add the phrase               critical habitat designation is different
                                                 in the final regulation would not be                    to the section the commenter has                      in terms of area proposed, the
                                                 helpful. However, the Services must                     suggested. Nevertheless, as stated above,             conservation needs of the species, the
                                                 clearly articulate, in proposed and final               the Secretary’s choice of scale will be               scope of the applicable Federal actions,
                                                 rules designating critical habitat for a                based on the best available scientific                economic activity, and the scales for
                                                 particular species, which physical or                   data.                                                 which data are available. Additionally,
                                                 biological features are essential to the                   (31) Comment: A commenter                          the scale of the analysis is very fact
                                                 conservation of the species and the basis               suggested that we replace the phrase                  specific. Therefore, the Services must
                                                 for that critical habitat.                              ‘‘conservation needs of the species’’                 have flexibility to evaluate these
                                                    (29) Comment: Several commenters                     with ‘‘physical or biological features’’ in           different areas in whatever way is most
                                                 suggested that we remove ‘‘at a scale                   § 424.12(b)(2). The commenter stated                  biologically and scientifically
                                                 determined by the Secretary to be                       that the phrase ‘‘conservation needs of               meaningful. For example, for a narrow-
                                                 appropriate’’ and add ‘‘for a specific                  the species’’ is undefined and adds                   endemic species, a critical habitat
                                                 unoccupied area to be designated as                     ambiguity to the regulation.                          proposal may cover a small area; in
                                                 critical habitat, it must be reasonably                    Our Response: Section 424.12(b)(2)                 contrast, for a wide-ranging species, a
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                                                 foreseeable that (1) such area will                     refers to the designation of critical                 critical habitat proposal may cover an
                                                 develop the physical and biological                     habitat in unoccupied areas. Under                    area that is orders of magnitude greater.
                                                 features necessary for the species and                  section 3(5)(A)(ii) of the statute,                   The appropriate scale for these two
                                                 (2) such features will be developed in an               unoccupied areas are subject only to the              species may not be the same. For the
                                                 amount and quality that the specific                    requirement that the Secretary                        narrow-endemic species, we may look at
                                                 area will serve an essential role in the                determine that such areas are essential               a very fine scale with a great level of
                                                 conservation of the species.’’                          for the conservation of the species. The              detail. In contrast, for the wide-ranging


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                                                                  Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations                                          7421

                                                 species, which may cover wide                           location where the species occurs on a                biological features are present and are
                                                 expanses of land or water, we may use                   regular or consistent basis.                          found to be essential to the conservation
                                                 a coarser scale, due to the sheer size of                  Our Response: We have indicated that               of the species and may require special
                                                 the proposed designation. Each critical                 the geographical area occupied by the                 management considerations or
                                                 habitat proposal includes a description                 species is likely to be larger than the               protection. The inclusion of periodic or
                                                 of the scope of the area being proposed,                specific areas that would then be                     temporary areas would be based on the
                                                 and uses a scale appropriate to that                    analyzed for potential designation under              best scientific data available for the
                                                 situation based on the best scientific                  section 3(5)(A)(i). We are not suggesting             species and these areas would have to
                                                 data available. The suggested language                  that the specific areas included in                   meet the criteria above.
                                                 would not allow for the Secretarial                     critical habitat should fill this area. To               (38) Comment: Several commenters
                                                 discretion that is needed to be flexible                limit the definition to specific locations            asked what constitutes being
                                                 to meet the conservation needs of the                   where the species occurs on a regular or              ‘‘temporarily present?’’ The Services
                                                 species. The proposed rule designating                  consistent basis would not allow the                  should explain that occupied areas
                                                 critical habitat for a particular species is            Secretaries to designate areas that may               require a demonstration of regular or
                                                 made available for public review and                    be important for the conservation of a                consistent use within a reasonable
                                                 comment, and interested parties may                     listed species that may only be                       period of time. One State commented
                                                 comment on the scale for a specific                     periodically used by a species, such as               that the Services should clarify the
                                                 designation.                                            breeding areas, foraging areas, and                   meaning of the terms ‘‘periodically’’ and
                                                    (33) Comment: Several commenters                     migratory corridors, thereby limiting                 ‘‘temporarily’’ to provide adequate
                                                 stated that, in reaching this                           Secretarial discretion.                               guidance and set reasonable limits for
                                                 determination, the Services appear to                      (35) Comment: One State asked if the               potential critical habitat designations.
                                                 conflate disparate terminology (specific                range in the geographical area occupied                  Our Response: We will use the best
                                                 areas versus occurrences) and rely upon                 by the species definition refers to the               scientific data available to determine
                                                 a vague term (range) that does not                      historical range or the currently                     occupied areas including those that are
                                                 adequately delineate what geographic                    occupied range.                                       used only periodically or temporarily by
                                                 areas are actually occupied by a species.                  Our Response: The term ‘‘range’’ as                a listed species during some portion of
                                                 Several commenters also requested                       indicated in our proposal refers to the               its life history. This will be determined
                                                 additional explanation of the term                      generalized area currently occupied by                on a species-by-species basis, and our
                                                 ‘‘range.’’                                              the species at the time the listing                   rationale would be explained in the
                                                    Our Response: Under section                          determination is made, not the                        proposed and final rules for these
                                                 3(5)(A)(i) of the Act, specific areas                   historical range.                                     species, which would be available for
                                                 designated as critical habitat include                     (36) Comment: One State also wanted                public review and comment.
                                                 those specific areas within the                         to know if land-use restrictions within                  (39) Comment: Several commenters,
                                                 geographical area occupied by the                       the geographical area occupied by the                 including two States, were concerned
                                                 species at the time the species is listed.              species would be put into place in                    about using ‘‘indirect or circumstantial’’
                                                 As discussed in our proposal and this                   addition to the designated critical                   evidence to determine occupancy and
                                                 final rule, the geographical area that                  habitat.                                              questioned whether this qualified as the
                                                 may generally be delineated around the                     Our Response: The revised                          best scientific data available. One of the
                                                 species’ occurrences is synonymous                      regulations would not result in any                   commenters asserted that the Services
                                                 with the species’ range. The term                       change to land-use restrictions beyond                should only designate areas as occupied
                                                 ‘‘range’’ used in our proposal refers to                the existing regulatory requirements                  based on scientific evidence (including
                                                 the general area currently occupied by                  under section 7 of the Act that Federal               traditional and local knowledge) that
                                                 the species at the time the listing                     agencies consult with the Services to                 breeding, foraging, or migratory
                                                 determination is made. These areas are                  ensure that the actions they carry out,               behaviors actually occur in that location
                                                 occupied by the species throughout all                  fund, or authorize are not likely to                  on a regular or consistent basis.
                                                 or part of the species’ life cycle, even if             destroy or adversely modify critical                     Our Response: The Services will rely
                                                 not used on a regular basis. Some                       habitat (see the final rule published                 on the best scientific data available in
                                                 examples we give are migratory                          elsewhere in today’s Federal Register).               determining which specific areas were
                                                 corridors, seasonal habitats, and habitats              The Act provides no special regulatory                occupied at the time of listing and
                                                 used periodically, but not solely by                    protections for those areas within the                which of these contain the features
                                                 vagrant individuals. This scale of                      geographic area occupied by the species               essential to the conservation of the
                                                 occupancy is different from a very                      that are not designated as critical                   species. The best available scientific
                                                 narrow or limited delineation of areas of               habitat, although the section 7                       data in some cases may only be indirect
                                                 occupancy identified through presence                   prohibition on jeopardy and the section               or circumstantial evidence. We will
                                                 and absence surveys for localized                       9 prohibitions may still be applicable.               explain in the proposed rule designating
                                                 occurrences of the species. We,                            (37) Comment: Several States disagree              critical habitat for a particular species if
                                                 therefore, disagree that we are using a                 with the Services’ interpretation of the              and how such evidence was used to
                                                 vague term in referring to range.                       definition of ‘‘occupied.’’ This                      determine occupancy and will provide
                                                    (34) Comment: Several commenters                     interpretation and inclusion of                       the public with an opportunity to
                                                 including one State stated that by                      ‘‘periodic or temporary’’ areas will lead             review and comment.
                                                 defining the geographical area occupied                 to a much larger consideration of critical               (40) Comment: Several commenters,
                                                 by the species as coextensive with the                  habitat that is largely unnecessary for               including two States, asked us to define
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                                                 ‘‘range’’ and including multiple areas of               species recovery.                                     and explain ‘‘life-history needs.’’
                                                 occurrence, the Services are expanding                     Our Response: Identifying the                         Our Response: We give a sample list
                                                 the geographic extent of occupied                       geographic area occupied at the time of               of life-history needs in the rule. This list
                                                 habitat beyond the limits of judicial                   listing is only the first step in                     includes but is not limited to water
                                                 interpretation. They suggested we                       designating critical habitat. In occupied             characteristics, soil type, geological
                                                 should define the area occupied by the                  areas, we can only designate critical                 features, sites, prey, vegetation,
                                                 species as limited to the specific                      habitat if one or more of the physical or             symbiotic species, or other features. The


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                                                 7422             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                 life-history needs are what the species                 features that are essential to the                    respectfully disagree that broadly
                                                 needs throughout its different life stages              conservation of the species.                          described features are necessarily
                                                 to survive and thrive.                                     Our Response: Our definition of                    inappropriate. The level of specificity in
                                                    (41) Comment: One State commented                    physical or biological features is the first          our description of the features is
                                                 that the term ‘‘sites’’ in the definition of            step, and we do not assume that all                   primarily determined by the state of the
                                                 ‘‘physical or biological features’’ is                  features are essential. In many                       best scientific information available for
                                                 wholly ambiguous and must be defined,                   circumstances the features that support               that species. We will provide as much
                                                 explained, or deleted.                                  life-history needs of the species are the             specificity as is appropriate in light of
                                                    Our Response: We included the term                   features that are essential to the                    what is known about the species’ habitat
                                                 ‘‘sites’’ in the definition of physical or              conservation of the species. The features             needs, while recognizing that the
                                                 biological features to keep the same                    that are essential to the conservation of             available science may still be evolving
                                                 level of specificity as currently is called             the species are those found in the                    for that species. Where the available
                                                 for in the regulations, and our current                 appropriate quality, quantity, and                    information is still evolving, it may not
                                                 regulations list ‘‘sites for breeding,                  spatial and temporal arrangements in                  be possible or necessary to provide a
                                                 reproduction, rearing of offspring,                     the context of the life history, status,              high level of specificity, and it may
                                                 germination, or seed dispersal’’ among                  and conservation needs of the species.                frustrate the conservation purposes of
                                                 the examples of primary constituent                     This varies according to the species. For             the Act to attempt to do so. See Arizona
                                                 elements that might be specified (50                    example, for a small, endemic species                 Cattle Growers’ Ass’n v. Kempthorne,
                                                 CFR 424.12(b)(4)). The term ‘‘sites’’ does              the features that support the life-history            534 F. Supp. 2d 1013, 1025 n.2 (D. Ariz.
                                                 not need to be defined or further                       needs may be essential themselves, but                2008), aff’d sub nom. Arizona Cattle
                                                 explained because we rely on a plain                    for a wide-ranging species what rises to              Growers’ Ass’n v. Salazar, 606 F.3d
                                                 dictionary meaning of ‘‘site’’: The place,              the level of essential features may rely              1160 (9th Cir. 2010).
                                                 scene, or point of an occurrence or event               more on the quality, quantity, and                       Finally, we must disagree with the
                                                 (Merriam-Webster, 2015).                                arrangement of those features.                        commenter’s suggestion that in
                                                                                                            (45) Comment: Several commenters                   identifying essential features the
                                                    (42) Comment: One State suggested
                                                                                                         sought an explanation for how the                     Services must identify what the species’
                                                 that we simplify the ‘‘physical or
                                                                                                         requisite physical and biological                     actually requires to return from ‘‘the
                                                 biological features’’ definition as
                                                                                                         features would be identified,                         brink of extinction.’’ Critical habitat is
                                                 follows: ‘‘Geographic or ecological
                                                                                                         documented, and verified during the                   generally required for threatened
                                                 elements within a species’ range that are
                                                                                                         critical-habitat-designation process.                 species as well as endangered species.
                                                 essential to its survival and                              Our Response: We use the best                      Moreover, the Services are not required
                                                 reproduction, whether single or in                      scientific data available to determine the            to have developed a recovery plan prior
                                                 combination, or necessary to support                    life-history needs of the species. The                to designating critical habitat for any
                                                 ephemeral habitats. Features may be                     essential physical or biological features             species. Home Builders Ass’n of
                                                 described in conservation biology terms,                support the life-history and                          Northern Cal. v. U.S. Fish and Wildlife
                                                 including patch size and connectivity.’’                conservation needs of the species. A                  Service, 616 F.3d 983, 989–90 (9th Cir.
                                                    Our Response: We appreciate the                      description of the essential features for             2010). Our determinations of which
                                                 State providing edits to simplify the                   each species and how they relate to its               features are ‘‘essential’’ thus depend on
                                                 phrase; however, based on our years of                  life-history and conservation needs will              an understanding of the species’ habitat
                                                 experience designating critical habitat                 be articulated in the proposed and final              needs rather than on a specific
                                                 and implementing it, we find that the                   rules designating critical habitat for a              projection of how the species could be
                                                 text in our proposal and this final rule                particular species. This description of               recovered.
                                                 will provide greater clarity.                           the essential features, as well as the                   (47) Comment: Several commenters
                                                    (43) Comment: Several commenters,                    designation that is based on them, will               stated that the plain language of the Act
                                                 including one State, indicated that we                  be available for public review and                    limits the scope of any designated area
                                                 needed a more specific delineation of                   comment during the rulemaking                         to those features essential to the species,
                                                 what features may be considered and                     process.                                              and does not authorize the designation
                                                 how they relate to the needs of the                        (46) Comment: Several commenters                   of areas that may include those
                                                 species.                                                stated that the description of the                    subsidiary characteristics that are
                                                    Our Response: We respectfully                        relevant features cannot be in broad                  essential for the development of the
                                                 disagree with the commenters that                       terms, but must be specific enough to                 features themselves.
                                                 further clarification should be added in                limit critical habitat to the most                       Our Response: We respectfully
                                                 this revised regulation. However, we do                 ‘‘essential areas’’ and help provide an               disagree and interpret the statutory
                                                 agree that we need to clearly articulate                understanding of what the species                     language not to limit ‘‘features’’ to those
                                                 in our proposed and final rules                         actually requires to return from the                  habitat characteristics that make habitat
                                                 designating critical habitat for each                   brink of extinction.                                  immediately usable by the species. In
                                                 species how the essential features relate                  Our Response: When evaluating                      other words, the physical or biological
                                                 to the life-history and conservation                    occupied habitat, we agree that the                   features referred to in the definition of
                                                 needs of the species. This type of                      statute requires us to determine which                ‘‘critical habitat’’ can include features
                                                 specificity will be in the individual                   areas contain physical or biological                  that allow for the periodic development
                                                 proposed and final rules designating                    features essential to the conservation of             of habitat characteristics immediately
                                                 critical habitat for each species. As is                the species (that may require special                 usable by the species. An interpretation
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                                                 our general practice, we will clearly lay               management considerations or                          of ‘‘features’’ that referred only to
                                                 out the features and how they relate to                 protection). In every proposed and final              immediately usable habitat would
                                                 the needs of the species in each rule.                  rule designating critical habitat for a               render many essential areas ineligible
                                                    (44) Comment: Several commenters                     particular species, we describe those                 for designation as critical habitat,
                                                 asked us to clarify the distinction, if                 features that we have determined to be                thwarting Congress’s intent that
                                                 any, between features that support the                  essential and explain the basis for our               designation of critical habitat should
                                                 life-history needs of the species and                   determination. However, we                            contribute to species’ conservation.


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                                                                  Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations                                        7423

                                                    We will use the best scientific data                 could consist of old-growth habitat or                special management considerations or
                                                 available to identify features essential to             habitat newly formed through                          protection may be required.
                                                 the conservation of the species and                     disturbance events such as fire or flood                 (50) Comment: Several States
                                                 clearly identify how they relate to the                 events. This does not constitute reliance             commented that the new interpretation
                                                 life-history and conservation needs of                  on mere hope or speculation but is                    of ‘‘special management considerations
                                                 the species. When considering what                      based on an understanding of the                      or protection’’ set out in the preamble
                                                 features are essential, it is sometimes                 relevant ecological processes. We also                appears to presume that areas covered
                                                 necessary to allow for the dynamic                      disagree with the characterization of                 by existing protection plans will
                                                 nature of the habitat, such as                          this situation as involving ‘‘potential               actually be more likely to be designated
                                                 successional stages of habitat, which                   critical habitat’’ that ‘‘will develop the            as critical habitat, and could act as a
                                                 could consist of old-growth habitat or                  physical or biological features at some               disincentive to implementing voluntary
                                                 habitat newly formed through                            point in the future.’’ Properly                       pre-designation conservation initiatives,
                                                 disturbance events such as fire or flood                understood, the essential features would              in direct contravention to recent
                                                 events. Thus, the physical or biological                currently exist in these areas, even                  Services’ policies attempting to
                                                 features essential to the conservation of               though they may not be currently                      incentivize voluntary conservation.
                                                 the species may include features that                   manifesting the shorter-term habitat                     Our Response: We respectfully
                                                 support the occurrence of ephemeral or                  conditions immediately usable by the                  disagree. We are directed by the Act to
                                                 dynamic habitat conditions. The                         species. Such areas may currently meet                identify areas that meet the definition of
                                                 example we gave in the proposed rule                    the definition of ‘‘critical habitat’’ and            ‘‘critical habitat’’ (i.e., occupied areas
                                                 was a species that may require early-                   not be merely ‘‘potential critical                    that contain the essential physical or
                                                 successional riparian vegetation in the                 habitat.’’                                            biological features that may require
                                                 Southwest to breed or feed. Such                          (49) Comment: Several commenters                    special management considerations or
                                                 vegetation may exist only 5 to 15 years                 stated that the Services’ position that               protection and unoccupied areas that
                                                 after a local flooding event. The                       ‘‘most circumstances’’ require ‘‘special              are essential for the conservation of a
                                                 necessary features, then, may include                   management’’ is inconsistent with                     species) without regard to land
                                                 not only the suitable vegetation itself,                congressional intent to narrow the                    ownership. We also make the
                                                 but also the flooding events,                           definition of ‘‘critical habitat’’ to require         determination and describe the special
                                                 topography, soil type, and flow regime,                 a very careful analysis of what is                    management considerations or
                                                 or a combination of these characteristics               actually needed for survival of the                   protections that may be needed in the
                                                 and the necessary amount of the                         species. Several commenters, including
                                                                                                                                                               proposed and final rules for each critical
                                                 characteristics that can result in the                  two States, also indicated that the
                                                                                                                                                               habitat area. The consideration of
                                                 periodic occurrence of the suitable                     Services must continue to make the
                                                                                                                                                               whether features in an area may require
                                                 vegetation. The flooding event would                    factual determination that special
                                                                                                                                                               special management considerations or
                                                 not be a subsidiary characteristic as                   management is needed as required by
                                                                                                                                                               protection occurs independent of
                                                 suggested by the commenter, but would                   the Act.
                                                                                                           Our Response: We make the                           whether any form of management or
                                                 itself be a feature necessary for the                                                                         protection occurs in the area. This does
                                                 vegetation to return. So in this case, it               determination and describe the special
                                                                                                         management considerations or                          not preclude the Services from
                                                 would be a combination of features,
                                                                                                         protections that may be needed in the                 considering the exclusion of these areas
                                                 flooding, and vegetation that would be
                                                                                                         proposed and final rules designating                  under section 4(b)(2) of the Act based on
                                                 necessary to the conservation of the
                                                                                                         critical habitat for each critical habitat            conservation programs, plans, and
                                                 species.
                                                    (48) Comment: Several commenters,                    area. However, it has been our                        partnerships prior to issuing the final
                                                 including two States, were concerned                    experience that, in most circumstances,               critical habitat rule.
                                                 that designating critical habitat based on              the physical or biological features                      (51) Comment: Several commenters
                                                 the presence of certain characteristics                 essential to the conservation of                      stated that the Services cannot designate
                                                 that may be necessary to eventually                     endangered species may require special                critical habitat based on the general
                                                 support the periodic occurrence of                      management considerations or                          assertions that the area contains the
                                                 riparian vegetation, without evidence                   protection in all areas in which they                 essential physical or biological features.
                                                 that the vegetation would actually                      occur. This is particularly true for                  Instead, the Services must demonstrate
                                                 develop, constitutes an impermissible                   species that have significant habitat-                that the relevant features are found
                                                 reliance upon hope and speculation.                     based threats, which is the case for most             within a specific area.
                                                 They further stated that the Services                   of our listed species. The statute directs               Our Response: In the first part of the
                                                 must go through a separate inquiry                      us to identify the essential physical or              definition of ‘‘critical habitat’’ in the
                                                 determining why it is reasonably                        biological features which ‘‘may require’’             Act, we are required to identify specific
                                                 foreseeable to conclude that the                        special management considerations or                  areas within the geographical area
                                                 potential critical habitat will develop                 protection, a standard that suggests we               occupied by the species at the time it is
                                                 the physical or biological features at                  should be cautious and protective. We                 listed on which are found those
                                                 some point in the future.                               do acknowledge that if in some areas the              physical or biological features essential
                                                    Our Response: We will use the best                   essential features clearly do not require             to the conservation of the species and
                                                 scientific data available to support the                special management considerations or                  which may require special management
                                                 identification of features essential to the             protection, then that area does not meet              considerations or protection. In our
                                                 conservation of the species and clearly                 this part (section 3(5)(A)(i)) of the                 proposed and final critical habitat rules,
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                                                 identify how they relate to the life-                   definition of ‘‘critical habitat.’’                   we identify which features occur in the
                                                 history and conservation needs of the                   However, we expect based on our                       area, the basis on which we are
                                                 species. When considering what                          experience with designating critical                  identifying them as essential features,
                                                 features are essential, it is sometimes                 habitat that these circumstances will be              including how they provide for the life-
                                                 necessary to allow for the dynamic                      rare. In our proposed and final critical              history and conservation needs of the
                                                 nature of the habitat, such as                          habitat rules, we will continue to make               species, and whether they may require
                                                 successional stages of habitat, which                   factual determinations as to whether                  special management considerations or


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                                                 7424             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                 protection. These rules will be available               ‘‘conserve, conserving, and                           They further stated that this was an
                                                 for public review and comment.                          conservation’’ and the words ‘‘no longer              Administrative Procedure Act violation
                                                   (52) Comment: Several commenters                      appropriate’’ in the definition of                    and that the phrase should be removed
                                                 suggested that we remove ‘‘principles of                ‘‘recovery’’ in 50 CFR 402.02. The                    in the final rule.
                                                 conservation biology’’ from the                         commenters asserted that these are two                   Our Response: The commenters are
                                                 definition of ‘‘physical and biological                 different standards and that we should                correct that we proposed to amend the
                                                 features.’’                                             pick one of them.                                     definition of ‘‘species.’’ In the preamble
                                                   Our Response: We respectfully                            Our Response: The words ‘‘no longer                we wrote, ‘‘Finally, we explain our
                                                 disagree. The sentence ‘‘Features may                   necessary’’ are used in the statutory                 interpretation of the meaning of the
                                                 also be expressed in terms of relating to               definition of ‘‘conserve, conserving, and             phrase ‘interbreeds when mature,’
                                                 principles of conservation biology, such                conservation’’ in the Act. The rule                   which is found in the definition of
                                                 as patch size, distribution distances, and              simply points out that the concept                    ‘species.’ . . . Although we are not
                                                 connectivity’’ explains more clearly                    described in the statutory language is                proposing to revise the regulations at
                                                 how we may identify the features. The                   equivalent to ‘‘recovery.’’ That term is              this time, we are using this notice to
                                                 principles of conservation biology are                  defined in § 402.02, which we are not                 inform the public of our longstanding
                                                 generally accepted among the scientific                 revising at this time.                                interpretation of this phrase.’’ Our
                                                 community and consistently used in                         (56) Comment: Several commenters                   intent was to explain how we have
                                                 species-at-risk status assessments and                  stated that the National Marine                       interpreted the phrase, but by
                                                 development of conservation measures                    Fisheries Service’s interpretation of the             inadvertently including this
                                                 and programs.                                           phrase ‘‘which interbreeds when                       interpretation in the regulatory language
                                                   (53) Comment: Several commenters                      mature’’ was upheld by the Ninth                      of the proposed rule, we in fact were
                                                 requested that we add language                          Circuit in Modesto Irr. Dist. v. Gutierrez,           proposing to change the definition of
                                                 delineating the area ‘‘around’’ the                     619 F.3d 1024 (9th Cir. 2010), and that               ‘‘species’’ to insert, ‘‘A distinct
                                                 species occurrences, either by using a                  the Act also requires that a group of                 population segment ‘interbreeds when
                                                 distance or a reference to the species’                 organisms must interbreed when mature                 mature’ when it consists of members of
                                                 natural functions in the geographic area                to qualify as a distinct population                   the same species or subspecies in the
                                                 definition.                                             segment (DPS), which is in contrast to                wild that are capable of interbreeding
                                                   Our Response: We are unable to                        the Services’ interpretation of the phrase            when mature.’’ We have removed the
                                                 determine a universal distance or a                     in the proposed rule.                                 proposed language from the definition
                                                 reference to the species’ natural                          Our Response: We respectfully                      of ‘‘species’’ in this final rule and left
                                                 functions that would be applicable to all               disagree that our interpretation of                   only the language in the preamble. The
                                                 species. This analysis and                              ‘‘interbreeds when mature’’ is at odds                Services are not amending the
                                                 determination is best left to the specific              with the ruling in Modesto Irrigation                 definition.
                                                 critical habitat rulemaking for a given                 District. In that case, the Ninth Circuit                (58) Comment: A commenter
                                                 species. In those proposed and final                    did not hold that actual interbreeding                suggested that the Services clarify the
                                                 rules, we can be specific for each                      among different populations is required               meaning of ‘‘being considered by the
                                                 species based on its life-history needs                 in order to include such populations in               Secretary’’ in the definition of the term
                                                 and more precisely define the                           a single DPS. To the contrary, the court              ‘‘candidate.’’ The commenter suggested
                                                 geographical area occupied by the                       made it clear that Congress did not                   that the final rule substitute the more
                                                 species. The rules will be available for                intend to create a ‘‘rigid limitation’’ on            narrow definition found in the FWS
                                                 public review and comment.                              the Services’ discretion to define DPSs.              candidate species fact sheet, which
                                                   (54) Comment: Several commenters,                     On the ‘‘narrow issue’’ of whether the                states: ‘‘Candidate species are plants
                                                 including one State, indicated that the                 ESA or the DPS Policy required that                   and animals for which the U.S. Fish and
                                                 proposed § 424.12(b)(2) and deletion of                 NMFS place interbreeding steelhead                    Wildlife Service has sufficient
                                                 current § 424.12(e) would relieve the                   and rainbow trout in the same DPS, the                information on their biological status
                                                 Services of any requirements that they                  court deferred to NMFS’s judgment that                and threats to propose them as
                                                 justify the designation of unoccupied                   there was no such requirement. Id. at                 endangered or threatened under the
                                                 habitat by demonstrating the                            1037. While NMFS did state in the                     Endangered Species Act, but for which
                                                 inadequacies of occupied habitat for the                challenged rule that ‘‘[t]he ESA                      development of a proposed listing
                                                 conservation of the species. They                       requirement that a group of organisms                 regulation is precluded by other higher
                                                 further stated that this was a major                    must interbreed when mature to qualify                priority listing activities.’’
                                                 departure in the law regarding                          as a DPS is a necessary but not exclusive                Our Response: We agree with the
                                                 designation of critical habitat.                        condition’’ (71 FR 834, 838 (Jan. 5,                  commenter that the statement in the
                                                   Our Response: We respectfully                         2006)), nothing in the rule suggested                 FWS candidate fact sheet is an
                                                 disagree. The proposed rule clearly                     that NMFS’s position was that actual                  appropriate meaning of the phrase
                                                 explains that the Act does not require                  interbreeding among disparate                         ‘‘being considered by the Secretary’’
                                                 the Services to first prove that the                    populations was required, and that                    found in the definition of candidate. We
                                                 occupied areas are insufficient before                  biological capacity to interbreed would               emphasize that we did not change the
                                                 considering unoccupied areas. The                       not be sufficient.                                    definition of ‘‘candidate’’ in this
                                                 regulatory provision at 424.12(e) merely                   (57) Comment: Several commenters                   regulation.
                                                 restated the requirement from the                       stated that the Services did in fact revise
                                                 statutory definition in a different way.                the regulations in our discussion of                  Criteria for Designating Critical Habitat
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                                                 We will still explain based on the best                 ‘‘interbreeds when mature’’ by inserting                (59) Comment: The Western
                                                 scientific data available, why the                      the phrase ‘‘A distinct population                    Governors’ Association requested that
                                                 unoccupied areas are essential for the                  segment ‘‘interbreeds when mature’’                   the Services provide a thorough, data-
                                                 conservation of the species.                            when it consists of members of the same               based explanation of the basis for the
                                                   (55) Comment: Several commenters                      species or subspecies in the wild that                determination that areas outside the
                                                 pointed out that we use ‘‘no longer                     are capable of interbreeding when                     range occupied at the time of listing are
                                                 necessary’’ in the new definition of                    mature’’ to the definition of a ‘‘species.’’          or will be essential habitat.


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                                                                  Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations                                        7425

                                                    Our Response: Under section                          threats to a species through the                         (64) Comment: Several commenters
                                                 3(5)(A)(ii) of the Act, to designate as                 identification of critical habitat. For               recommended adding after the word
                                                 critical habitat specific areas that are                example, if a species was highly prized               ‘‘threat’’ in the second sentence to
                                                 outside the geographical area occupied                  for collection or trade, then identifying             § 424.12(a)(1)(ii), the words ‘‘sufficient
                                                 by the species at the time the species is               specific localities of the species could              to warrant listing the species as
                                                 listed, the Services must determine that                render it more vulnerable to collection               threatened or endangered.’’
                                                 the areas are essential for the                         and, therefore, further threaten it.                     Our Response: While we agree with
                                                 conservation of the species. This                       However, in some circumstances, a                     the commenters’ intent, we find that
                                                 determination must be based on the best                 species may be listed because of factors              adding the phrase would be redundant
                                                 scientific data available concerning the                other than threats to its habitat or range,           because we would only be making a
                                                 particular species and its conservation                 such as disease, and the species may be               determination as to whether critical
                                                 needs. When the Services propose to                     a habitat generalist. In such a case, on              habitat is prudent if the species was
                                                 designate specific areas pursuant to                    the basis of the existing and revised                 either being proposed for listing
                                                 section 3(5)(A)(ii), they have under the                regulations, it is permissible to                     simultaneously or is already listed.
                                                 existing regulations and will under the                 determine that critical habitat is not                   (65) Comment: Several commenters
                                                 revised regulations explain the basis for               beneficial and, therefore, not prudent. It            thought the Services should simply
                                                 the determination, including the                        is also permissible to determine that a               delete § 424.12(a)(1)(ii) instead of
                                                 supporting data. Thus, the Services’                    designation would not be beneficial if                expanding it. They further stated that
                                                 explanation will be available for public                no areas meet the definition of ‘‘critical            the Act does not require that a species
                                                 comment.                                                habitat.’’                                            currently be threatened by habitat loss
                                                    (60) Comment: Several commenters,                       (62) Comment: Several commenters                   before critical habitat is designated and
                                                 including one State, were concerned                     inquired about whether the Services                   protected, and the spirit of the Act
                                                 that the essential areas in unoccupied                  would revise the regulations to provide               would not be served by the imposition
                                                 areas may not even be suitable for the                  greater flexibility in defining a greater             of such a requirement by regulation.
                                                 species and that this is an erroneous and               breadth of circumstances where a                         Our Response: Critical habitat is a
                                                 unreasonable interpretation of an                       determination can be made that the                    conservation tool under the Act that can
                                                 otherwise clear statutory statement and                 designation of critical habitat for a                 provide for the regulatory protection of
                                                 should be withdrawn.                                    species is not beneficial to its
                                                                                                                                                               a species’ habitat. The current
                                                    Our Response: Section 3(5)(A)(ii) of                 conservation and, therefore, not
                                                                                                                                                               regulations and the proposed revisions
                                                 the Act expressly allows for the                        prudent.
                                                 consideration and inclusion of                             Our Response: As noted above, it is                do not establish a requirement that a
                                                 unoccupied habitat in a critical habitat                permissible under the current and                     species be threatened by the
                                                 designation if such habitat is                          revised regulations to determine that                 modification, fragmentation, or
                                                 determined to be essential for the                      designating critical habitat for a species            curtailment of its range for critical
                                                 conservation of the subject species.                    is not beneficial and, therefore, not                 habitat to be beneficial and, therefore,
                                                 These areas do not have to contain the                  prudent. The text of these revised                    prudent to designate. However, the
                                                 physical or biological features and are                 regulations further clarifies the non-                regulation and revisions establish a
                                                 not subject to a finding that they may                  exclusive list of factors the Services may            framework whereby if a species is listed
                                                 require special management                              consider in evaluating whether                        under the Act and it is determined
                                                 considerations or protection. This is in                designating critical habitat is not                   through that process that its habitat is
                                                 contrast to what is required under the                  beneficial. The inclusion of ‘‘but not                not limited or threatened by destruction,
                                                 first part of the definition of ‘‘critical              limited to’’ to modify the statement ‘‘the            modification, or fragmentation, then it
                                                 habitat’’ (section 3(5)(A)(i) of the Act)               factors the Services may consider                     may not be beneficial or prudent to
                                                 for areas occupied at the time of listing.              include’’ allows for the consideration of             designate critical habitat. While this
                                                    (61) Comment: Several commenters                     alternative fact patterns where a                     provision is intended to reduce the
                                                 stated that the Services may only                       determination that critical habitat is not            burden of regulation in rare
                                                 properly make a ‘‘not prudent’’ finding                 beneficial would be appropriate. We                   circumstances in which designating
                                                 if there is specific information that                   think it is important to expressly reflect            critical habitat does not contribute to
                                                 increased poaching would result from                    this regulatory flexibility in the revised            conserving the species, the Services
                                                 designating critical habitat.                           regulations. Nonetheless, based on the                recognize the value of critical habitat as
                                                    Our Response: We respectfully                        Services’ history of implementing                     a conservation tool and expect to
                                                 disagree with the commenters’                           critical habitat, we anticipate that                  designate it in most cases.
                                                 assertion. The current regulations (49                  making a not-prudent determination on                    (66) Comment: Several commenters
                                                 FR 38900; October 1, 1984, and at 50                    any fact pattern will be rare.                        stated that § 424.12(a)(2) is not
                                                 CFR 424.12(a)(1)) allow for a                              (63) Comment: One State commented                  consistent with the plain meaning of the
                                                 determination that critical habitat is not              that the Services dropped the word                    Act and should be deleted from the final
                                                 prudent for a species if such designation               ‘‘probable’’ from the revised § 424.12(a)             rule. They stated the proposed minor
                                                 would: (1) Increase the degree of threat                when talking about economic impacts                   word changes did not improve the
                                                 to the species through the identification               and that the word should be retained in               situation.
                                                 of critical habitat, or (2) not be                      the final rule.                                          Our Response: The minor word
                                                 beneficial to the species. The                             Our Response: We agree and have                    changes to § 424.12(a)(2) are meant to
                                                 determination that critical habitat is not              retained the word ‘‘probable’’ in this                make the language more consistent with
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                                                 prudent for a listed species is                         final rule. It is consistent with the                 the language in the Act. This section is
                                                 uncommon, especially given that most                    revised final regulation in 50 CFR                    necessary to inform the public as to the
                                                 species are listed, in part, because of                 424.19 (78 FR 53058) and our draft                    circumstances in which the Services
                                                 impacts to their habitat or curtailment of              policy on exclusions under section                    will make a not-determinable finding on
                                                 their range. Most ‘‘not prudent’’ findings              4(b)(2) of the Act. We note that in this              critical habitat and thereby invoking the
                                                 have resulted from a determination that                 context the term ‘‘probable’’ means                   1-year extension of section 4(b)(6)(C)(ii)
                                                 there would be increased harm or                        reasonably likely to occur.                           of the Act. 16 U.S.C. 1533(b)(6)(C)(ii).


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                                                 7426             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                    (67) Comment: A commenter stated                     clarifications provided in our proposal                  (70) Comment: Several commenters,
                                                 that when the Services deem critical                    and this final rule do not expand the                 including two States, indicated that
                                                 habitat as not determinable due to a lack               Services’ authority. There have been                  removing references to ‘‘primary
                                                 of data for habitat analyses or lack of                 specific circumstances, as discussed in               constituent elements’’ dramatically and
                                                 knowledge on biological needs of the                    our proposal, where data have been                    unnecessarily expands the scope of
                                                 species, the Services should regularly                  available showing the shift in habitat                critical habitat and confuses instead of
                                                 check for new data and/or make efforts                  use by a species in response to the                   clarifies critical habitat designation,
                                                 to collect necessary data and move                      effects of climate change. In those cases             leading to more litigation.
                                                 forward with critical habitat                           where the best scientific data available                 Our Response: Removing references to
                                                 designations. One State also commented                  indicate that a species may be shifting               ‘‘primary constituent elements’’ from
                                                 that critical habitat designations should               habitats or habitat use, then it is                   the regulation will not result in
                                                 only be made based on the best                          permissible to include specific areas                 expansion of the scope of critical
                                                 available scientific data and                           accommodating these changes in a                      habitat. Removing this phrase is not
                                                 information, and in instances where                     designation, provided that the Services               intended to substantively alter anything
                                                 data or information is lacking, the                     can explain why the areas meet the                    about the designation of critical habitat,
                                                 Services have an obligation to delay a                  definition of ‘‘critical habitat.’’ Although          but to eliminate redundancy in how we
                                                 designation until such time that                        some such instances are based on                      describe the physical or biological
                                                 sufficient information is acquired.                     reasonable predictions of how habitat                 features. The phrase ‘‘primary
                                                    Our Response: Finding that critical                  will be used by the species in the future,            constituent element’’ is not found in the
                                                 habitat is not determinable only invokes                they are based on determinations that                 Act and the regulations have never been
                                                 a 1-year extension of the deadline for                  the areas are currently essential to the              clear as to how primary constituent
                                                 finalizing a critical habitat designation               species. In other words, we may find                  elements relate to or are distinct from
                                                 under section 4(b)(6)(C)(ii) of the Act. 16             that an unoccupied area is currently                  physical or biological features essential
                                                 U.S.C. 1533(b)(6)(C)(ii). At the                        ‘‘essential for the conservation’’ even               to the conservation of the species,
                                                 conclusion of the year, the Services                    though the functions the habitat is                   which is the phrase used in the Act. In
                                                 must move forward with the designation                  expected to provide may not be used by                fact, the removal of the phrase ‘‘primary
                                                 and have no authority under the Act to                  the species until a point in the                      constituent elements’’ will alleviate the
                                                 further delay designation (unless we                    foreseeable future. The data and                      tension caused by trying to understand
                                                 determine that designation is not                       rationale on which such a designation is              the relationship between the phrases.
                                                 prudent). We agree that critical habitat                based will be clearly articulated in our              The specificity of the primary
                                                 designations must only be made based                    proposed rule designating critical                    constituent elements that has been
                                                 on the best scientific data available as                habitat. The Services will consider                   discussed in previous designations will
                                                 required by the Act. If we initially do                 whether habitat is occupied or                        now be discussed in the descriptions of
                                                 not have enough data to make a critical                 unoccupied when determining whether                   the physical or biological features
                                                 habitat determination, then we can                      to designate it as critical habitat and use           essential to the conservation of the
                                                 invoke the 1-year extension allowed                     the best available scientific data on a               species.
                                                 under the Act. The Services use that                                                                             (71) Comment: Several commenters
                                                                                                         case-by-case basis regarding the current
                                                 time to gather additional data. At the                                                                        including several States were opposed
                                                                                                         and future suitability of such habitat for
                                                 end of the 1-year extension, the Services                                                                     to elimination of § 424.12(e) as this
                                                                                                         recovery of the species, and when
                                                 must use the best scientific data                                                                             section is necessary and intentionally
                                                                                                         developing conservation measures.
                                                 available to make the critical habitat                                                                        limiting and is an accurate
                                                 determination.                                             (69) Comment: Several commenters                   implementation of the statutory
                                                    (68) Comment: One State suggested                    requested clarification of new                        definition and Congressional intent.
                                                 that climate change is more                             § 424.12(e) with regard to the                        Several commenters also questioned
                                                 appropriately addressed during a 5-year                 differences in the way the Services                   that when the Services promulgated
                                                 status review and the critical habitat                  handle designation of critical habitat for            § 424.12(e) in 1980, that we explained in
                                                 revision process than trying to attempt                 species listed prior to the 1982                      the preamble to that rule that the
                                                 to accommodate future critical habitat                  amendments to the Act versus species                  limitation in § 424.12(e) was intended to
                                                 by predicting areas necessary to support                listed after the 1982 amendments.                     ‘‘implement the statutory requirement’’
                                                 the species’ recovery. It further asserted                 Our Response: If the Services                      that unoccupied areas may be
                                                 that the Services’ proposed authority to                designate critical habitat for species                designated ‘‘only if necessary to ensure
                                                 designate areas that are currently                      listed prior to the 1982 amendments, the              the conservation of the species.’’ The
                                                 unoccupied and which are not now                        designation is procedurally treated like              Services do not address this prior
                                                 necessary to support the species’                       a revision of existing critical habitat               interpretation at all, or explain why a
                                                 recovery, but may eventually become                     even if critical habitat was never                    rule that it once enacted as necessary to
                                                 necessary, is a vast expansion of the                   designated. Thus, the Services have                   implement a statutory requirement is
                                                 critical habitat program and contrary to                additional options at the final rule stage            now unnecessary.
                                                 the focus in the Act on current habitat                 with regard to a proposal to designate                   Our Response: We respectfully
                                                 conditions.                                             critical habitat for those species listed             disagree. Section 424.12(e) did not
                                                    Our Response: We agree that 5-year                   prior to 1982 that they do not have                   allow us to designate unoccupied areas
                                                 status reviews and the critical habitat                 when proposing to designate habitat for               unless a designation limited to its
                                                 revision process can play important                     other species. These include an option                present range (occupied) would be
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                                                 roles regarding the conservation needs                  to make a finding that the revision                   inadequate to ensure the conservation of
                                                 of a species in response to habitat                     ‘‘should not be made’’ and to extend the              the species. As we stated in the
                                                 changes resulting from climate change.                  12-month deadline by an additional                    proposed rule, there is no suggestion in
                                                 However, the statute as written allows                  period of up to 6 months if there is                  the legislative history that the Services
                                                 for sufficient flexibility to address the               substantial disagreement regarding the                were expected to exhaust occupied
                                                 effects of climate change in a critical                 sufficiency or accuracy of available data             habitat before considering whether any
                                                 habitat designation, and, therefore, the                (see 16 U.S.C. 1533(b)(6)(B)(i)).                     unoccupied areas may be essential.


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                                                                  Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations                                         7427

                                                 Further, section 3(5)(A) of the Act                     Services’ current position on this issue              species’ conservation. Designation of
                                                 expressly allows for the consideration                  is distinctly contrary to the position the            critical habitat is one important tool that
                                                 and inclusion of unoccupied habitat in                  Services took in 1984 when the existing               contributes to recovery, but a critical
                                                 a critical habitat designation if such                  regulations were adopted.                             habitat designation alone may not be
                                                 habitat is determined to be essential for                  Our Response: Under the second part                sufficient to achieve recovery. Indeed,
                                                 the conservation of the subject species.                of the definition of ‘‘critical habitat’’ in          given the limited regulatory role of a
                                                 There is no specific language in the Act                the Act (section 3(5)(A)(ii)), the Services           critical habitat designation (i.e., through
                                                 that requires the Services to first prove               are to identify specific areas outside the            section 7’s mandate that Federal
                                                 that the inclusion of all occupied areas                geographical area occupied by the                     agencies avoid destruction or adverse
                                                 in a designation are insufficient to                    species, at the time it is listed in                  modification of critical habitat, see final
                                                 conserve the species before considering                 accordance with the provisions of                     rule published elsewhere in today’s
                                                 unoccupied areas. However, the existing                 section 4 of the Act, upon a                          Federal Register), it is generally not
                                                 implementing regulations state that                     determination by the Secretary that such              possible to look to a critical habitat
                                                 such unoccupied habitat could only be                   areas are essential for the conservation              designation alone to ensure recovery.
                                                 considered if a determination was made                  of the species. In contrast to section                Also, we must designate critical habitat
                                                 that the Service(s) could not recover the               3(5)(A)(i), this provision does not                   according to mandatory timeframes,
                                                 species with the inclusion of only the                  mention physical or biological features,              very often prior to development of a
                                                 occupied habitat.                                       much less require that the specific areas             formal recovery plan. See Home
                                                    We have learned from years of                        contain the physical or biological                    Builders Ass’n of Northern Cal. v. U.S.
                                                 implementing the critical habitat                       features essential to the conservation of             Fish and Wildlife Service, 616 F.3d 983,
                                                 provisions of the Act that often a rigid                the species. These are two clearly                    989–90 (9th Cir. 2010). However,
                                                 step-wise approach, i.e., first                         distinct provisions. The unoccupied                   although a critical habitat designation
                                                 designating all occupied areas that meet                areas do not have to presently contain                will not necessarily ensure recovery, it
                                                 the definition of ‘‘critical habitat’’                  any of the physical or biological                     will further recovery because the
                                                 (assuming that no unoccupied habitat is                 features, which is not a change from the              Services base the designation on the
                                                 designated) and then, only if that is not               way we have been designating                          best available scientific information
                                                 enough, designating essential                           unoccupied critical habitat (see, e.g.,               about the species’ habitat needs at the
                                                 unoccupied habitat, does not                            Markle Interests v. USFWS, 40 F. Supp.                time of designation. The best available
                                                 necessarily serve the best conservation                 3d 744 (E.D. La. 2014)).                              information will include any
                                                 strategy for the species and in some                       (73) Comment: One State                            generalized conservation strategy or
                                                 circumstances may result in a                           recommended that the Services develop                 criteria that may have been developed
                                                 designation that is geographically larger,              a policy or metric to determine whether               for the species in consultation with staff
                                                 but less effective as a conservation tool.              a particular area should be designated as             working in recovery planning and
                                                 Our proposed change will allow us to                    critical habitat in unoccupied areas.                 implementation to ensure collaboration,
                                                 consider the inclusion of occupied and                     Our Response: This final rule explains             consistency, and efficiency as the
                                                 unoccupied areas in a critical habitat                  the Services’ general parameters for                  Services work with the public and
                                                 designation following at minimum a                      designating critical habitat. The details             partners to recover a listed species.
                                                 general conservation strategy for the                   of why a specific area is determined to                  (75) Comment: A commenter stated
                                                 species. In some cases, we have and                     be essential to the conservation of the               that the proposed rule clarifies that the
                                                 may continue to find, that the inclusion                species will in part be directed by any               Services have the discretion to designate
                                                 of all occupied habitat in a designation                generalized conservation strategy                     critical habitat for species listed before
                                                 does not support the best conservation                  developed for the species, and clearly                1978, but does not specify when that
                                                 strategy for a species. We expect that the              articulated in our proposed and final                 discretion would be used. The
                                                 concurrent evaluation of occupied and                   rules designating critical habitat. That              commenter requested that the Services
                                                 unoccupied areas for a critical habitat                 determination is a fact-specific analysis             identify guidelines or standards for
                                                 designation will allow us to develop                    and is based on the best available                    judging when to designate critical
                                                 more precise and deliberate                             scientific data for the species and its               habitat for pre-1978 species.
                                                 designations that can serve as more                     conservation needs. The proposed rule                    Our Response: Whether to exercise
                                                 effective conservation tools.                           for each critical habitat designation will            discretion to designate critical habitat
                                                 Additionally, there is no specific                      be subject to public review and                       for species listed prior to 1978 is a case-
                                                 language in the Act that requires the                   comment.                                              specific determination dependent on the
                                                 Services to first prove that the inclusion                 (74) Comment: A commenter                          conservation needs of the species,
                                                 of all occupied areas in a designation                  suggested that the Services designate                 scientific data available, and the
                                                 are insufficient to conserve the species                enough critical habitat at the time of                resources available for additional
                                                 before considering unoccupied areas.                    listing to ensure that a species can                  rulemaking. Guidelines on this point
                                                 The statutory language is sufficiently                  recover.                                              could limit Secretarial discretion and
                                                 clear that it does not need explanation                    Our Response: In evaluating which                  may not allow for sufficient flexibility
                                                 in the revised regulation, and, moreover,               areas qualify as critical habitat and                 in furthering the conservation of a
                                                 to the extent that the 1980 regulation                  specific areas finalized (subject to                  species.
                                                 language differs from the statutory                     section 4(b)(2) exclusions, see final                    (76) Comment: Several commenters
                                                 language, it does not add any clarity.                  policy published elsewhere in today’s                 were concerned that the Services must
                                                    (72) Comment: Several commenters,                    Federal Register), we follow the                      commit to using the best scientific data
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                                                 including one State, disagreed that                     statutory requirements to identify those              available when designating unoccupied
                                                 unoccupied areas need not have the                      occupied areas that contain the physical              areas as critical habitat.
                                                 features essential to the conservation of               or biological features essential to the                  Our Response: We are mandated by
                                                 the species and that the Services                       species’ conservation that may require                the Act to use (and are committed to
                                                 propose to unlawfully write this                        special management considerations or                  using) the best scientific data available
                                                 statutory requirement out of the Act.                   protection and any unoccupied areas                   in determining any specific areas as
                                                 The State also pointed out that the                     that we determine to be essential for the             critical habitat, regardless of occupancy.


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                                                 7428             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                    (77) Comment: Several Tribes stated                  State, shall encourage—(1) foreign                    county or equivalent jurisdiction in
                                                 that while the Services readily                         countries to provide for the                          which the species is believed to occur,
                                                 acknowledge in the proposal their                       conservation of fish or wildlife and                  and invite the comment of such agency,
                                                 responsibility to communicate                           plants including endangered species                   and each such jurisdiction. Further,
                                                 meaningfully with recognized Federal                    and threatened species listed pursuant                section 4(i) of the Act requires the
                                                 Tribes on a government-to-government                    to section 4.’’ It is clear that Congress             Secretary to provide a written
                                                 basis, the proposed revision does                       understood the distinction between                    justification for adopting regulations in
                                                 nothing to clarify how the Services will                implementing the ESA within the                       conflict with the agency’s comments or
                                                 carry out this responsibility.                          jurisdiction of the United States and                 for failing to adopt a regulation as
                                                    Our Response: These revised                          implementing the ESA within the                       requested in a State petition. In addition
                                                 regulations set forth our general practice              jurisdiction of foreign countries. It then            to these requirements, the Services are
                                                 for designating critical habitat, clarify               follows that since Congress did not                   committed to continuing to work with
                                                 definitions and phrases, and in general                 explicitly state that critical habitat shall          the States early in the process to ensure
                                                 align the regulations with the statute.                 be designated in foreign countries or                 that we are using the best scientific data
                                                 The revised regulations are not intended                that the Secretary consult, as                        available.
                                                 to be prescriptive in how the Services                  appropriate, with foreign countries on a                 (80) Comment: One State requested
                                                 will implement the provisions or                        designation of critical habitat, then the             clarification on the application of this
                                                 coordinate with federally recognized                    designation of critical habitat is limited            regulation to critical habitat
                                                 Tribes that are potentially affected.                   to lands within the jurisdiction of the               designations that are currently under
                                                 However, the Services are committed to                  United States.                                        way, but not yet finalized.
                                                 communicate and coordinate                                Justice Stevens approved of the                        Our Response: As indicated in DATES
                                                 meaningfully and effectively with                       Services’ conclusion in his concurrence               above, although effective 30 days from
                                                 federally recognized Tribes concerning                  in Lujan v. Defenders of Wildlife, 504                the date of publication, the revised
                                                 actions under the ESA, including the                    U.S. 555 (1992). There, he favorably                  version of § 424.12 will apply only to
                                                 development and implementation of                       noted the Service’s longstanding                      rulemakings for which the proposed
                                                 critical habitat for species that may                   interpretation of the limitation of                   rule is published after that date. Thus,
                                                 occur on their lands. We rely on the                    critical habitat designations to areas                the prior version of § 424.12 will
                                                 requirements of S.O. 3206 to provide the                within the jurisdiction of the United                 continue to apply to any rulemakings
                                                 guidance on how the Services will carry                 States:                                               for which a proposed rule was
                                                 out this responsibility. We have often                                                                        published before that date. However,
                                                 found that the best and most meaningful                   The Secretary of the Interior and the               because many of the revisions merely
                                                                                                         Secretary of Commerce have consistently               codify or explain our existing practices
                                                 coordination and collaboration,
                                                                                                         taken the position that they need not
                                                 including fulfilling our responsibilities                                                                     and interpretations, we may
                                                                                                         designate critical habitat in foreign countries.
                                                 under S.O. 3206, occurs between our                     See 42 FR 4869 (1977) (initial regulations of         immediately refer to and act consistent
                                                 Regional and field offices and a specific               the Fish and Wildlife Service and the                 with the amended language of § 424.12
                                                 Tribe on a particular species.                          National Marine Fisheries Service on behalf           in final rules to which the prior version
                                                    (78) Comment: Several commenters                     of the Secretary of the Interior and the              applies.
                                                 were opposed to the inclusion of the                    Secretary of Commerce). Consequently,                    (81) Comment: Several commenters
                                                 proposed § 424.12(g), saying the Act                    neither Secretary interprets § 7(a)(2) to             objected to the Services’ determination
                                                 makes no distinction between foreign                    require federal agencies to engage in                 that a regulatory flexibility analysis is
                                                 and domestic species and requires that                  consultations to ensure that their actions in         not required for this regulation, stating
                                                 all listed species receive critical habitat             foreign countries will not adversely affect the       the regulated community is affected by
                                                                                                         critical habitat of endangered or threatened          this regulation.
                                                 unless doing so is not prudent or
                                                                                                         species.                                                 Our Response: We respectfully
                                                 determinable.                                             That interpretation is sound. . . .
                                                    Our Response: We respectfully                                                                              disagree. We interpret the Regulatory
                                                 disagree. Subsection (g) is a                           Id. at 587 (Stevens, J., concurring).                 Flexibility Act, as amended, to require
                                                 continuation of existing subsection (h),                   (79) Comment: One State requested                  that Federal agencies evaluate the
                                                 which has long codified the Services’                   that the Services include a new                       potential incremental impacts of
                                                 understanding that critical habitat                     § 424.12(e) that requires that designation            rulemaking only on those entities
                                                 should not be designated outside of                     will be made after consultation with the              directly regulated by the rulemaking
                                                 areas under United States jurisdiction.                 affected States. It would read, ‘‘In                  itself and, therefore, not on indirectly
                                                 This interpretation is well supported.                  designating any area as critical habitat,             regulated entities. Recent case law
                                                 The Act makes a distinction between                     the Secretary shall consult with affected             supports this interpretation (https://
                                                 coordination with and implementation                    States (those in which the proposed                   www.sba.gov/sites/default/files/
                                                 of the provisions of the ESA between                    critical habitat is located or those that             rfaguide_0512_0.pdf, pages 22–23).
                                                 States and local jurisdictions within the               may be affected by the designation of                 NMFS and FWS are the only entities
                                                 United States versus with foreign                       the habitat) prior to completing the                  that are directly affected by this rule
                                                 countries. Section 4(b)(1)(A), which                    designation, and the fact of and finding              because we are the only entities that
                                                 deals with listing species, provides that               of such consultation shall be addressed               designate critical habitat, and this rule
                                                 the Secretary shall consult, as                         in the final rulemaking for the                       pertains to the procedures for carrying
                                                 appropriate, not only with affected                     designation.’’                                        out those designations. No external
                                                 States, but also, in cooperation with the                  Our Response: The suggested new                    entities, including any small businesses,
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                                                 Secretary of State, with the country or                 § 424.12(e) is not necessary because                  small organizations, or small
                                                 countries in which the species is                       section 4(b)(5)(A)(ii) of the Act requires            governments, will experience any direct
                                                 normally found. In contrast, section 7 of               the Secretary to give actual notice of the            economic impacts from this rule.
                                                 the ESA does not include a requirement                  proposed regulation (including the                       We understand that there is
                                                 to consult with foreign governments.                    complete text of the regulation) to the               considerable confusion as to how these
                                                 Further, section 8(b)(1) states that ‘‘the              State agency in each State in which the               revisions to the regulation will change
                                                 Secretary, through the Secretary of                     species is believed to occur, and to each             the process for designating critical


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                                                                  Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations                                           7429

                                                 habitat, with many thinking it will                     applies. Nothing in these final revised               kingdoms from these two. Any species
                                                 greatly expand our designations and                     regulations is intended to require that               that was considered to be a member of
                                                 provide less clarity to the process. We                 any previously completed critical                     the Animal or Plant Kingdoms in 1973
                                                 went to great effort in our proposal and                habitat designation must be reevaluated               will continue to be treated as such for
                                                 further in this final rule to explain that              on this basis.                                        purposes of the administration of the
                                                 revised regulations will not result in any                                                                    Act regardless of any subsequent
                                                                                                         Section 424.01 Scope and Purpose
                                                 significant deviation from how the two                                                                        changes in taxonomy. We may address
                                                 agencies have been designating critical                   We are making minor revisions to this               this issue in a future rulemaking relating
                                                 habitat. Our intent is to codify what we                section to update language and                        to making listing determinations (as
                                                 have been doing for many years and                      terminology. The first sentence in                    opposed to designating critical habitat).
                                                 provide common-sense revisions based                    § 424.01(a) is being revised to remove                In the meantime, the republication of
                                                 on lessons learned and relevant case                    reference to critical habitat being                   these definitions here should not be
                                                 law. It is our expectation that these                   designated or revised only ‘‘where                    viewed as an agency determination that
                                                 revisions will allow us to develop more                 appropriate.’’ This wording implied a                 these definitions reflect the scope of the
                                                 precise and deliberate designations that                greater flexibility regarding whether to              Act in light of our current
                                                 can serve as more effective conservation                designate critical habitat than is correct.           understanding of taxonomy.
                                                 tools, focusing conservation resources                  Circumstances in which we determine                      The current regulations include a
                                                 where needed and minimizing                             critical habitat designation is not                   definition for ‘‘Conservation, conserve,
                                                 regulatory burdens where not necessary.                 prudent are rare. Therefore, the new                  and conserving.’’ We are revising the
                                                 As a consequence, we find, as iterated                  language removes the phrase ‘‘where                   title of this entry to ‘‘Conserve,
                                                 above, that NMFS and FWS are the only                   appropriate.’’ Other revisions to this                conserving, and conservation,’’
                                                 entities directly regulated by these                    section are minor word changes to use                 changing the order of the words to
                                                 revisions and that an RFA analysis is                   more plain language or track the                      conform to the statute. Additionally, we
                                                 not required.                                           statutory language.                                   are revising the first sentence of the
                                                   (82) Comment: We received several                     Section 424.02 Definitions                            definition to include the phrase ‘‘i.e.,
                                                 comments that the proposed revised                                                                            the species is recovered’’ to clarify the
                                                 regulations constituted a major Federal                    This section of the regulations defines            link between conservation and recovery
                                                 action because they will result in                      terms used in the context of section 4 of             of the species. The statutory definition
                                                 significant socioeconomic consequences                  the Act. We are making revisions to                   of ‘‘conserve, conserving, and
                                                 and these impacts must be analyzed                      § 424.02 to update it to current                      conservation’’ is ‘‘to use and the use of
                                                 under the National Environmental                        formatting guidelines, to revise several              all methods and procedures that are
                                                 Policy Act of 1969 (NEPA).                              definitions related to critical habitat, to           necessary to bring any endangered or
                                                   Our Response: As detailed in the                      delete definitions that are redundant                 threatened species to the point at which
                                                 REQUIRED DETERMINATIONS section                         with statutory definitions, and to add                measures provided pursuant to the Act
                                                 below, we have determined that this                     two newly defined terms. Section                      are no longer necessary.’’ This is the
                                                 action qualifies for a categorical                      424.02 is currently organized with                    same concept as the definition of
                                                 exclusion under both DOI and NOAA                       letters as paragraph designation for each             ‘‘recovery’’ found in § 402.02:
                                                 governing procedures.                                   term (e.g., § 424.02(b) Candidate). The               ‘‘improvement in the status of listed
                                                                                                         Office of the Federal Register now                    species to the point at which listing is
                                                 Final Amendments to Regulations                         recommends setting out definitions in
                                                 Discussion of Changes to Part 424                                                                             no longer appropriate.’’ The Services,
                                                                                                         the CFR without paragraph                             therefore, view ‘‘conserve, conserving,
                                                    This final rule revises 50 CFR 424.01,               designations. We propose to revise the                and conservation’’ as a process
                                                 424.02, and 424.12 (except for                          formatting of the entire section                      culminating at the point at which a
                                                 paragraph (c)) to clarify the procedures                accordingly. Discussion of the revised                species is recovered.
                                                 and criteria used for designating critical              definitions and newly defined terms                      We are deleting definitions for
                                                 habitat, addressing in particular several               follows. We note where these final                    ‘‘critical habitat,’’ ‘‘endangered species,’’
                                                 key issues that have been subject to                    revisions differ from those set out in the            ‘‘plant,’’ ‘‘Secretary,’’ ‘‘State Agency,’’
                                                 frequent litigation.                                    proposed rule.                                        and ‘‘threatened species’’ because these
                                                    In finalizing the specific changes to                   We note that, although revising the                terms are defined in the Act and the
                                                 the regulations that follow, and setting                formatting of the section requires that               existing regulatory definitions do not
                                                 out the accompanying clarifying                         the entirety of the section be restated in            add meaning to the terms.
                                                 discussion in this preamble, the                        the final-amended-regulation section,                    We also define the previously
                                                 Services are establishing prospective                   we are not at this time revisiting the text           undefined term ‘‘geographical area
                                                 standards only. As indicated in DATES                   of those existing definitions that we are             occupied by the species’’ as: ‘‘the
                                                 above, although effective 30 days from                  not specifically revising, including                  geographical area which may generally
                                                 the date of publication, the revised                    those that do not directly relate to                  be delineated around the species’
                                                 version of § 424.12 will apply only to                  designating critical habitat. In                      occurrences, as determined by the
                                                 rulemakings for which the proposed                      particular, we are not in this rulemaking             Secretary (i.e., range). Such areas may
                                                 rule is published after that date. Thus,                amending the definitions of ‘‘plant,’’                include those areas used throughout all
                                                 the prior version of § 424.12 will                      ‘‘wildlife,’’ or ‘‘fish and wildlife’’ to             or part of the species’ life cycle, even if
                                                 continue to apply to any rulemakings                    reflect changes in taxonomy since the                 not used on a regular basis (e.g.,
                                                 for which a proposed rule was                           ESA was enacted in 1973. In 1973, only                migratory corridors, seasonal habitats,
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                                                 published before that date. However,                    the Animal and Plant Kingdoms of life                 and habitats used periodically, but not
                                                 because many of the revisions merely                    were universally recognized by science,               solely by vagrant individuals).’’ This
                                                 codify or explain our existing practices                and all living things were considered to              term appears in the definition of
                                                 and interpretations, we may                             be members of one of these kingdoms.                  ‘‘critical habitat’’ found in section
                                                 immediately refer to and act consistent                 Thus, at enactment, the ESA applied to                3(5)(A)(i) and (ii) of the Act, but is not
                                                 with the amended language of § 424.12                   all living things. Advances in taxonomy               defined in the Act or in our current
                                                 in final rules to which the prior version               have subsequently split additional                    regulations. The inclusion of this new


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                                                 7430             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                 regulatory definition reflects the                      not detail all areas occupied by the                  range of the species. Occupancy by the
                                                 Services’ efforts to clarify the critical-              species at that time.                                 listed species must be based on
                                                 habitat-designation process.                               Thus, while some of these changes in               evidence of regular periodic use by the
                                                    The definition of ‘‘critical habitat’’ in            a species’ known distribution reflect                 listed species during some portion of
                                                 the Act has two parts, section 3(5)(A)(i)               changes in the actual distribution of the             the listed species’ life history. However,
                                                 and (ii), which establish two distinct                  species, some reflect only changes in the             because some species are difficult to
                                                 categories of critical habitat, based on                quality of our information concerning                 survey or we may otherwise have
                                                 species occupancy in an area at the time                distribution. In these circumstances, the             incomplete survey information, the
                                                 of listing. Therefore, to identify specific             determination of which geographic                     Services will rely on the best available
                                                 areas to designate as critical habitat, we              areas were occupied at the time of                    scientific data, which may in some cases
                                                 must first determine what area                          listing may include data developed                    include indirect or circumstantial
                                                 constitutes the ‘‘geographical area                     since the species was listed. This                    evidence, to determine occupancy. We
                                                 occupied by the species at the time of                  interpretation was supported by a recent              further note that occupancy does not
                                                 listing,’’ which is the language used in                court decision, Otay Mesa Property L.P.               depend on identifiable presence of adult
                                                 the Act. The scale of this area is likely               v. DOI, 714 F. Supp. 2d 73 (D.D.C.                    organisms. For example, periodical
                                                 to be larger than the specific areas that               2010), rev’d on other grounds, 646 F.3d               cicadas occupy their range even though
                                                 would then be analyzed for potential                    914 (D.C. Cir. 2011) (San Diego fairy                 adults are only present for 1 month
                                                 designation under section 3(5)(A)(i).                   shrimp). In that decision, the judge                  every 13 or 17 years. Similarly, the
                                                 This is because the first part of the                   noted that the clause ‘‘occupied at the               presence (or reasonably determined
                                                 critical habitat definition in the Act                  time of listing’’ allows FWS to make a                presence) of eggs or cysts of fairy shrimp
                                                 directs the Services to identify ‘‘specific             post-listing determination of occupancy               or seed banks of plants constitute
                                                 areas within’’ the geographical area                    based on the currently known                          occupancy even when mature
                                                 occupied by the species at time of                      distribution of the species in some                   individuals are not present.
                                                 listing. This intentional choice to use                 circumstances. Although the D.C.                         We also finalize a definition for the
                                                 more narrow terminology alongside                       Circuit disagreed with the district court             term ‘‘physical or biological features.’’
                                                 broader terminology suggests that the                   that the record contained sufficient data             This phrase is used in the statutory
                                                 ‘‘geographical area’’ was expected most                 to support the FWS’ determination of                  definition of ‘‘critical habitat’’ to assist
                                                 often to be a larger area that could                    occupancy in that case, the D.C. Circuit              in identifying the specific areas within
                                                                                                         did not express disagreement with (or                 the entire geographical area occupied by
                                                 encompass multiple ‘‘specific areas.’’
                                                                                                         otherwise address) the district court’s               the species that can be considered for
                                                 Thus, we find the statutory language
                                                                                                         underlying conclusion that the Act                    designation as critical habitat. We
                                                 supports the interpretation of equating
                                                                                                         allows FWS to make a post-listing                     define ‘‘physical or biological features’’
                                                 the geographical area occupied by the
                                                                                                         determination of occupancy if based on                as ‘‘the features that support the life-
                                                 species to the wider area around the
                                                                                                         adequate data. The FWS acknowledges                   history needs of the species, including
                                                 species’ occurrences at the time of
                                                                                                         that to make a post-listing determination             but not limited to water characteristics,
                                                 listing. A species’ occurrence is a
                                                                                                         of occupancy we must distinguish                      soil type, geological features, sites, prey,
                                                 particular location in which members of
                                                                                                         between actual changes to species                     vegetation, symbiotic species, or other
                                                 the species are found throughout all or
                                                                                                         occupancy and changes in available                    features. A feature may be a single
                                                 part of their life cycle. The geographic                information. For succinctness, herein                 habitat characteristic, or a more
                                                 area occupied by the species is thus the                and elsewhere we refer to areas as                    complex combination of habitat
                                                 broader, coarser-scale area that                        ‘‘occupied’’ when we mean ‘‘occupied                  characteristics. Features may include
                                                 encompasses the occurrences, and is                     at the time of listing.’’                             habitat characteristics that support
                                                 what is often referred to as the ‘‘range’’                 The second sentence of the definition              ephemeral or dynamic habitat
                                                 of the species.                                         for ‘‘geographical area occupied by the               conditions. Features may also be
                                                    In the Act, the term ‘‘geographical                  species’’ clarifies that the meaning of               expressed in terms relating to principles
                                                 area occupied by the species’’ is further               the term ‘‘occupied’’ includes specific               of conservation biology, such as patch
                                                 modified by the clause ‘‘at the time it is              areas that are used only periodically or              size, distribution distances, and
                                                 listed.’’ However, if critical habitat is               temporarily by a listed species during                connectivity.’’
                                                 being designated or revised several                     some portion of its life history, and is                 The definition clarifies that physical
                                                 years after the species was listed, it can              not limited to those areas where the                  and biological features can be the
                                                 be difficult to discern what was                        listed species may be found more or less              features that support the occurrence of
                                                 occupied at the time of listing. The                    continuously. Areas of periodic use may               ephemeral or dynamic habitat
                                                 known distribution of a species can                     include, for example, breeding areas,                 conditions. For example, a species may
                                                 change after listing for many reasons,                  foraging areas, and migratory corridors.              require early-successional riparian
                                                 such as discovery of additional                         The Ninth Circuit recently supported                  vegetation in the Southwest to breed or
                                                 localities, extirpation of populations, or              this interpretation by FWS, holding that              feed. Such vegetation may exist only 5
                                                 emigration of individuals to new areas.                 a determination that a species was likely             to 15 years after a local flooding event.
                                                 In many cases, information concerning                   to be temporarily present in the areas                The necessary features, then, may
                                                 a species’ distribution, particularly on                designated as critical habitat was a                  include not only the suitable vegetation
                                                 private lands, is limited as surveys are                sufficient basis for determining those                itself, but also the flooding events,
                                                 not routinely carried out on private                    areas to be occupied, even if the species             topography, soil type, and flow regime,
                                                 lands unless performed as part of an                    was not continuously present. Arizona                 or a combination of these characteristics
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                                                 environmental analysis for a particular                 Cattle Growers’ Assoc. v. Salazar, 606                and the necessary amount of the
                                                 development proposal. Even then, such                   F.3d 1160 (9th Cir. 2010) (Mexican                    characteristics that can result in the
                                                 surveys typically focus on listed rather                spotted owl).                                         periodic occurrence of the suitable
                                                 than unlisted species, so our knowledge                    Nonetheless, periodic use of an area               vegetation. Thus, the Services could
                                                 of a species’ distribution at the time of               does not include use of habitat in that               conclude that essential physical or
                                                 listing in these areas is often limited and             area by vagrant individuals of the                    biological features exist in a specific
                                                 the information in our listing rule may                 species who wander far from the known                 area even in the temporary absence of


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                                                                  Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations                                          7431

                                                 suitable vegetation, and could designate                conclusion of the court on this point—                when in the wild would be biologically
                                                 such an area as critical habitat if all of              it is incorrect to read the statute as                capable of interbreeding if given the
                                                 the other applicable requirements were                  asking whether additional special                     opportunity, but all members need not
                                                 met and if there were documented                        management considerations or                          actually interbreed with each other. A
                                                 occurrences of the particular habitat                   protection may be required. The                       DPS is a subset of a species or
                                                 type in the area and a reasonable                       evaluation of whether features in an                  subspecies, and cannot consist of
                                                 expectation of that habitat occurring                   area may require special management                   members of different species or
                                                 again.                                                  considerations or protection occurs                   subspecies. The ‘‘biological species’’
                                                    In Cape Hatteras Access Preservation                 independent of whether any form of                    concept, which defines species
                                                 Alliance v. DOI, 344 F. Supp. 2d 108,                   management or protection occurs in the                according to a group of organisms’
                                                 123 n.4 (D.D.C. 2004), the court rejected               area.                                                 actual or potential ability to interbreed,
                                                 FWS’ designation for the piping plover                     We expect that, in most                            and their relative reproductive isolation
                                                 as including lands that did not currently               circumstances, the physical or                        from other organisms, is one widely
                                                 contain the features defined by FWS,                    biological features essential to the                  accepted approach to defining species.
                                                 but noted that it was not addressing                    conservation of endangered species may                We interpret the phrase ‘‘interbreeds
                                                 ‘‘whether dynamic land capable of                       require special management in all areas               when mature’’ to reflect this
                                                 supporting plover habitat can itself be                 in which they occur, particularly for                 understanding and to signify only that
                                                 one of the ‘physical or biological                      species that have significant habitat-                a DPS must be composed solely of
                                                 features’ essential to conservation.’’ The              based threats. However, if in some areas              members of the same species or
                                                 new definition for ‘‘physical or                        the essential features do not require                 subspecies. As long as this requirement
                                                 biological features’’ clarifies that                    special management consideration or                   is met, a DPS may include multiple
                                                 features can be dynamic or ephemeral                    protection because there are no                       groups of vertebrate organisms that do
                                                 habitat characteristics. However, an area               applicable threats to the features that               not actually interbreed with each other.
                                                 within the geographical area occupied                   have to be managed or protected for the               For example, a DPS may consist of
                                                 by the species, containing habitat that is              conservation of the species, then that                multiple groups of a fish species
                                                 not ephemeral by nature but that has                    area does not meet this part (section                 separated into different drainages.
                                                 been degraded in some way, must have                    3(5)(A)(i)) of the definition of ‘‘critical           While it is possible that the members of
                                                 one or more of the physical or biological               habitat.’’ Nevertheless, we expect such               these groups do not actually interbreed
                                                 features at the time of designation.                    circumstances to be rare.                             with each other, their members are
                                                    Having defined ‘‘physical or                            Furthermore, it is not necessary that              biologically capable of interbreeding.
                                                 biological features,’’ we are also                      a feature currently requires special                     Our intent was to explain how we
                                                 removing the term ‘‘primary constituent                 management considerations or                          have interpreted the phrase, but by
                                                 element’’ and all references to it from                 protection, only that it may require                  inadvertently including this
                                                 the regulations in § 424.12. As with all                special management to meet the                        interpretation in the regulatory language
                                                 other aspects of these revisions, this will             definition of ‘‘critical habitat.’’ 16 U.S.C.         of the proposed rule, we in fact were
                                                 apply only to future critical habitat                   1532(5)(A)(i) (emphasis added). Two                   proposing to change the definition of
                                                 designations and is further explained                   district court decisions have                         ‘‘species’’ to insert, ‘‘A distinct
                                                 below in the discussion of the changes                  emphasized this point. CBD v. Norton                  population segment ‘interbreeds when
                                                 to § 424.12, where the term is currently                (Mexican spotted owl); Cape Hatteras                  mature’ when it consists of members of
                                                 used.                                                   Access Preservation Alliance v. DOI,                  the same species or subspecies in the
                                                    We are also revising the definition of               344 F. Supp. 2d 108 (D.D.C. 2004)                     wild that are capable of interbreeding
                                                 ‘‘special management considerations or                  (piping plover). The legislative history              when mature.’’ We have removed the
                                                 protection’’ which is found in § 424.02.                supports the view that Congress                       proposed language from the definition
                                                 Here we remove the phrase ‘‘of the                      purposely set the standard as ‘‘may                   of ‘‘species’’ in this final rule and left
                                                 environment’’ from the current                          require.’’ Earlier versions of the bills              only the language in this preamble. We
                                                 regulation. This phrase is not used in                  that led to the statutory definition of               also noticed that we inadvertently left
                                                 this context elsewhere in the regulations               ‘‘critical habitat’’ used the word                    out the word ‘‘Includes’’ from the
                                                 or the Act and, therefore, may create                   ‘‘requires,’’ but ‘‘may require’’ was                 definition of ‘‘species’’ in our proposed
                                                 ambiguity. We also insert the words                     substituted prior to final passage. In any            regulation. We have restored the word
                                                 ‘‘essential to’’ to conform to the                      case, an interpretation of a statute                  ‘‘Includes’’ in this final regulation to
                                                 language of the Act.                                    should give meaning to each word                      match the definition of ‘‘species’’ found
                                                    In determining whether an area has                   Congress chose to use, and our                        in our 1984 regulation. The Services are
                                                 essential features that may require                     interpretation gives the word ‘‘may’’                 not substantively amending the
                                                 special management considerations or                    meaning.                                              definition at this time.
                                                 protection, the Services do not base                       Finally, we explain our interpretation
                                                 their decision on whether management                    of the meaning of the phrase                          Section 424.12 Criteria for Designating
                                                 is currently in place or whether that                   ‘interbreeds when mature,’ which is                   Critical Habitat
                                                 management is adequate. FWS formerly                    found in the definition of ‘species.’ The                We are revising the first sentence of
                                                 took the position that special                          ‘‘interbreeds when mature’’ language is               paragraph (a) to clarify that critical
                                                 management considerations or                            ambiguous (Modesto Irrigation Dist. v.                habitat shall be proposed and finalized
                                                 protection was required only if                         Gutierrez, 619 F.3d 1024, 1032 (9th Cir.              ‘‘to the maximum extent prudent and
                                                 whatever management was in place was                    2010)). Although we are not revising the              determinable . . . concurrent with
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                                                 inadequate and that additional special                  regulatory definition of ‘‘species’’ at this          issuing proposed and final listing rules,
                                                 management was needed. This position                    time, we are using this notice to inform              respectively.’’ The language of the
                                                 was rejected by the court in Center for                 the public of our interpretation of this              existing regulation is ‘‘shall be specified
                                                 Biological Diversity v. Norton, 240 F.                  phrase.’’ We have always understood                   to the maximum extent prudent and
                                                 Supp. 2d 1090 (D. Ariz. 2003) (Mexican                  the phrase ‘‘interbreeds when mature’’                determinable at the time a species is
                                                 spotted owl), the only court to address                 to mean that a DPS consists of members                proposed for listing.’’ We added the
                                                 this issue. The Services agree with the                 of the same species or subspecies that                words ‘‘proposed and finalized’’ to be


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                                                 7432             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                 consistent with the Act, which requires                 or physical constituent elements’’ and                independently meets the definition of
                                                 that critical habitat be finalized                      ‘‘primary constituent elements’’ from                 ‘‘critical habitat.’’ Nor will the Secretary
                                                 concurrent with listing to the maximum                  this section. These concepts are                      necessarily consider legal property lines
                                                 extent prudent and determinable. The                    replaced by the statutory term ‘‘physical             in making a scientific judgment about
                                                 existing language could be interpreted                  or biological features,’’ which we define             what areas meet the definition of
                                                 to mean proposing critical habitat                      as described above.                                   ‘‘critical habitat.’’ Instead, the Secretary
                                                 concurrent with listing was the only                       The first part of the statutory                    has discretion to determine at what
                                                 requirement. Additionally, the existing                 definition of ‘‘critical habitat’’ (section           scale to do the analysis. In making this
                                                 phrase ‘‘shall be specified’’ is vague and              3(5)(A)(i)) contains terms necessary for              determination, the Secretary may
                                                 not consistent with the requirement of                  (1) identifying specific areas within the             consider, among other things, the life
                                                 the Act, which is to propose and finalize               geographical area occupied by the                     history of the species, the scales at
                                                 a designation of critical habitat. The last             species that may be considered for                    which data are available, and biological
                                                 two sentences in paragraph (a) contain                  designation as critical habitat and (2)               or geophysical boundaries (such as
                                                 minor language changes to use the                       describing which features on those areas              watersheds), and any draft conservation
                                                 active voice.                                           are essential to the conservation of                  strategy that may have been developed
                                                    Paragraphs (a)(1) and (a)(1)(i) are not              species. In addition, current § 424.12(b)             for the species.
                                                 changed.                                                introduced the phrase ‘‘primary                          Under the first part of the statutory
                                                    The first sentence of paragraph                      constituent elements.’’ However, the                  definition, in identifying specific areas
                                                 (a)(1)(ii) remains the same. However, we                regulations are not clear as to how                   for consideration, the Secretary must
                                                 add a second sentence to paragraph                      primary constituent elements relate to                first identify the geographical area
                                                 (a)(1)(ii) to provide examples of factors               or are distinct from physical or                      occupied by the species at the time of
                                                 that we may consider in determining                     biological features, which is the term                listing. Within the geographical area
                                                 whether a designation would not be                      used in the statute. Adding a term not                occupied by the species, the Secretary
                                                 beneficial to the species. A designation                found in the statute that is at least in              must identify the specific areas on
                                                 may not be beneficial and, therefore, not               part redundant with the term ‘‘physical               which are found those physical or
                                                 prudent, under certain circumstances,                   or biological features’’ has proven                   biological features (1) essential to the
                                                 including but not limited to: Whether                   confusing. Trying to parse features into              conservation of the species, and (2)
                                                 the present or threatened destruction,                  elements and give them meaning                        which may require special management
                                                 modification, or curtailment of a                       distinct from one another has added an                considerations or protection.
                                                 species’ habitat or range is not a threat               unnecessary layer of complication and                    Under § 424.12(b)(1)(i), the Secretary
                                                 to the species, or whether no areas meet                confusion during the designation                      will identify the geographical area
                                                 the definition of ‘‘critical habitat.’’ For             process.                                              occupied by the species using the new
                                                 example, this provision may apply to a                     The definition of ‘‘physical or                    regulatory definition of this term. Under
                                                 species that is threatened primarily by                 biological features,’’ described above,               § 424.12(b)(1)(ii), the Secretary will then
                                                 disease but the habitat that it relies                  encompasses similar habitat                           identify those physical and biological
                                                 upon continues to exist unaltered                       characteristics as currently described in             features essential to the conservation of
                                                 throughout an appropriate distribution                  § 424.12(b), such as roost sites, nesting             the species. These physical or biological
                                                 that, absent the impact of the disease,                 grounds, spawning sites, feeding sites,               features are to be described at an
                                                 would support conservation of the                       seasonal wetland or dryland, water                    appropriate level of specificity, based on
                                                 species. Another example is a species                   quality or quantity, host species or plant            the best scientific data available at the
                                                 that occurs in portions of the United                   pollinator, geological formation,                     time of designation. For example,
                                                 States and a foreign nation. In the                     vegetation type, tide, and specific soil              physical features might include gravel
                                                 foreign nation, there are multiple areas                types. Our proposal is intended to                    of a particular size required for
                                                 that have the features essential to the                 simplify and clarify the process, and to              spawning, alkali soil for germination,
                                                 conservation of the species; however, in                remove redundancy, without                            protective cover for migration, or
                                                 the United States there are no such                     substantially changing the manner in                  susceptibility to flooding or fire that
                                                 areas. Consequently, there are no areas                 which critical habitat is designated. The             maintains early-successional habitat
                                                 within the United States that meet the                  Services still expect to provide a                    characteristics. Biological features might
                                                 definition of ‘‘critical habitat’’ for the              comparable level of detail and                        include prey species, forage grasses,
                                                 species. Therefore, there is no benefit to              specificity in defining and describing                specific kinds or ages of trees for
                                                 designation of critical habitat, and                    physical or biological features essential             roosting or nesting, symbiotic fungi, or
                                                 designation is not prudent.                             to the conservation of a species.                     a maximum level of nonnative species
                                                    While this provision is intended to                     Section 424.12(b) describes the                    consistent with conservation needs of
                                                 reduce the burden of regulation in rare                 process to be used to identify the                    the listed species. The features may also
                                                 circumstances in which designation of                   specific areas to be considered for                   be combinations of habitat
                                                 critical habitat does not contribute to                 designation as critical habitat, based on             characteristics and may encompass the
                                                 the conservation of the species, the                    the statutory definition of ‘‘critical                relationship between characteristics or
                                                 Services recognize the value of critical                habitat.’’ With respect to both parts of              the necessary amount of a characteristic
                                                 habitat as a conservation tool and expect               the definition, the revised regulations               needed to support the life history of the
                                                 to designate it in most cases.                          emphasize that the Secretary will                     species. For example, a feature may be
                                                    Section 424.12(a)(2) remains                         identify areas that meet the definition               a specific type of forage grass that is in
                                                 unchanged from the current regulation,                  ‘‘at a scale determined by the Secretary              close proximity to a certain type of
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                                                 and subparagraphs (i) and (ii) contain                  to be appropriate.’’ The purpose of this              shrub for cover. Because the species
                                                 minor language changes to be consistent                 language is to clarify that the Secretary             would not consume the grass if there
                                                 with the language in the Act.                           cannot and need not make                              were not the nearby shrubs in which to
                                                    The Services are completely revising                 determinations at an infinitely fine                  hide from predators, one of these
                                                 § 424.12(b) of the current regulations.                 scale. Thus, the Secretary need not                   characteristics in isolation would not be
                                                 For the reason explained below, we also                 determine that each square inch, square               an essential feature; the feature that
                                                 remove the terms ‘‘principal biological                 yard, acre, or even square mile                       supports the life-history needs of the


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                                                                  Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations                                         7433

                                                 species would consist of the                            However, there may be multiple                        critical habitat (in whole or in part).
                                                 combination of these two characteristics                pathways in the consideration of the                  Alternatively, the Services have the
                                                 in close proximity to each other.                       elements of the first part of the                     option to pursue a succinct and
                                                    In considering whether features are                  definition of ‘‘critical habitat.’’ For               streamlined notice of proposed
                                                 essential to the conservation of the                    instance, one may first identify specific             rulemaking to carry forward the existing
                                                 species, the Services may consider an                   areas occupied by the species, then                   critical habitat (in whole or in part),
                                                 appropriate quality, quantity, and                      identify all features needed by a species             which draws, as appropriate, from the
                                                 spatial and temporal arrangement of                     to carry out life-history functions in                existing designation.
                                                 habitat characteristics in the context of               those areas through consideration of the                 More broadly, when applying
                                                 the life-history needs, condition, and                  conservation needs of the species, and                § 424.12(b)(1) to the facts relating to a
                                                 status of the species. For example, a                   then determine which of those specific                particular species, the Services will
                                                 small patch of meadow may have the                      areas contain the features essential to               usually have more than one option
                                                 native flowers, full sun, and a                         the conservation of the species. The                  available for determining what specific
                                                 biologically insignificant level of                     determination of which features are                   areas constitute the critical habitat for
                                                 invasive ants that have been determined                 essential to the conservation of the                  that species. In keeping with the
                                                 to be important habitat characteristics                 species may consider the spatial                      conservation-based purpose of critical
                                                 that support the life-history needs of an               arrangement and quantity of such                      habitat, the relevant Service may find it
                                                 endangered butterfly. However, that                     features in the context of the life history,          best to first consider broadly what it
                                                 small patch may be too far away from                    status, and conservation needs of the                 knows about the biology and life history
                                                 other patches to allow for mixing of the                species. In some circumstances, not                   of the species, the threats it faces, the
                                                 populations, or the meadow may be too                   every location that contains one or more              species’ status and condition, and,
                                                 small for the population to persist over                of the habitat characteristics that a                 therefore, the likely conservation needs
                                                 time. So the area could have important                  species needs will be designated as                   of the species with respect to habitat. If
                                                 characteristics, but those characteristics              critical habitat. Some locations may                  there already is a recovery plan for that
                                                 may not contribute to the conservation                  have important habitat characteristics,               species (which is not always the case
                                                 of the species because they lack the                    but are too small to support a                        and not a prerequisite for designating
                                                 appropriate size and proximity to other                 population of the species, or are located             critical habitat), then that plan would be
                                                 meadows with similar characteristics.                   too far away from other locations to                  useful for this analysis.
                                                 Conversely, the exact same                              allow for genetic exchange. Considered                   Using principles of conservation
                                                 characteristics (native flowers, full sun,              in context of any generalized                         biology such as the need for appropriate
                                                 and a biologically insignificant level of               conservation strategy that might be                   patch size, connectivity of habitat,
                                                 invasive ants), when combined with the                                                                        dispersal ability of the species, or
                                                                                                         developed for the species,
                                                 additional characteristics of larger size                                                                     representation of populations across the
                                                                                                         § 424.12(b)(1)(i) through (iv) will allow
                                                 and short dispersal distance to other                                                                         range of the species, the Services may
                                                                                                         for sufficient flexibility to determine
                                                 meadows, may in total constitute a                                                                            evaluate areas needed for the
                                                                                                         what areas within the geographical area
                                                 physical or biological feature essential                                                                      conservation of the species. The
                                                                                                         occupied by the species are needed to
                                                 to the conservation of the species.                                                                           Services must identify the physical and
                                                                                                         provide for the conservation of the
                                                    Under § 424.12(b)(1)(iii), the Secretary                                                                   biological features essential to the
                                                                                                         species.
                                                 will then determine the specific areas                                                                        conservation of the species and
                                                 within the geographical area occupied                      Occasionally, new taxonomic                        unoccupied areas that are essential for
                                                 by the species on which are found those                 information may result in a                           the conservation of the species. When
                                                 physical or biological features essential               determination that a previously listed                using this methodology to identify areas
                                                 to the conservation of the species.                     species or subspecies is actually two or              within the geographical area occupied
                                                    Section 424.12(b)(1)(iv) provides for                more separate entities. In such an                    by the species at the time of listing, the
                                                 the consideration of whether those                      instance, the Services must have                      Services will expressly translate the
                                                 physical or biological features may                     flexibility, when warranted, to continue              application of the relevant principles of
                                                 require special management                              to apply the protections of the Act to                conservation biology into the
                                                 considerations or protection. In this                   preserve the conservation value of                    articulation of the features. Aligning the
                                                 portion of the analysis, the Secretary                  critical habitat that has been designated             physical and biological features
                                                 must determine whether there are any                    for a species listed as one listable entity           identified as essential with the
                                                 ‘‘methods or procedures useful in                       (i.e., species, subspecies, or distinct               conservation needs of the species and
                                                 protecting physical and biological                      population segment (DPS)), and which                  any conservation strategy that may have
                                                 features for the conservation of listed                 is being reproposed for listing as one or             been developed for the species allows
                                                 species.’’ Only those physical or                       more different listable entities (e.g.,               us to develop more precise designations
                                                 biological features that may be in need                 when the Services propose to list two or              that can serve as more effective
                                                 of special management considerations                    more species, subspecies, or DPSs that                conservation tools, focusing
                                                 or protection are considered further.                   had previously been listed as a single                conservation resources where needed
                                                 The Services may conduct this analysis                  entity). Where appropriate (such as                   and minimizing regulatory burdens
                                                 for the need of special management                      where the range of an entity proposed                 where not necessary.
                                                 considerations or protection at the scale               for listing and a previously designated                  We note that designation of critical
                                                 of all specific areas, but they may also                area of critical habitat align), the                  habitat relies on the best available
                                                 do so within each specific area.                        Services have the option to find,                     scientific data at the time of designation.
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                                                    The ‘‘steps’’ outlined in                            simultaneously with the proposed                      The Services may not know of, or be
                                                 subparagraphs (i) through (iv) above are                listing of the proposed entity or entities,           able to identify, all of the areas on
                                                 not necessarily intended to be applied                  that the relevant geographic area(s) of               which are found the features essential to
                                                 strictly in a stepwise fashion. The                     the existing designation continues to                 the conservation of a species. After
                                                 instructions in each subparagraph must                  apply as critical habitat for the new                 designation of final critical habitat for a
                                                 be considered, as each relates to the                   entity or entities. Such a finding                    particular species, the Services may
                                                 statutory definition of ‘‘critical habitat.’’           essentially carries forward the existing              become aware of or identify other


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                                                 7434             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                 features or areas essential to the                      legislative history that the Services were            and minimizing regulatory burdens
                                                 conservation of the species, such as                    expected to exhaust occupied habitat                  where not necessary.
                                                 through 5-year reviews and recovery                     before considering whether any                           In addition, the existing regulatory
                                                 planning. Newly identified features that                unoccupied area may be essential. In                  provision is unnecessary because the
                                                 are useful for characterizing the                       addition, although section 3(5)(C) of the             Secretary in any case must find that the
                                                 conservation value of designated critical               Act reflects Congressional intent that a              unoccupied area is ‘‘essential.’’ In many
                                                 habitat can be considered in                            designation generally should not                      cases the Secretary may conclude that
                                                 consultations conducted under section                   include every area that the species can               an integral part of analyzing whether
                                                 7(a)(2) of the Act as part of the best                  occupy, this does not necessarily                     unoccupied areas are essential is to
                                                 available scientific and commercial                     translate into a mandate to avoid                     begin with the occupied areas, but the
                                                 data. We also note that if there is                     designation of any unoccupied areas                   Act does not require the Services to first
                                                 uncertainty as to whether an area was                   unless relying on occupied areas alone                prove that the occupied areas are
                                                 ‘‘within the geographical area occupied                 would be insufficient. Indeed, there may              insufficient before considering
                                                 by the species, at the time it is listed,’’             be instances in which particular                      unoccupied areas. Therefore, we
                                                 the Services may in the alternative                     unoccupied habitat is more important to               conclude that deleting existing
                                                 designate the area under the second part                the conservation of the species than                  § 424.12(e) restores the two parts of the
                                                 of the definition if the relevant Service               some occupied habitat.                                statutory definition (for occupied and
                                                 determines that the area is essential for                  For example, a species may occupy at               unoccupied areas) to the relationship
                                                 the conservation of the species.                        low densities a large amount of habitat               envisioned by Congress.
                                                    The second part of the statutory                     that is marginal habitat for the species.                As it is currently written, the
                                                 definition of ‘‘critical habitat’’ (section             That marginal habitat may nonetheless                 provision in § 424.12(e) also confusingly
                                                 3(5)(A)(ii)) provides that areas outside                meet the definition of ‘‘critical habitat’’           references present range, while the two
                                                 the geographical area occupied by the                   because the species has been extirpated               parts of the statutory definition refer to
                                                 species at the time of listing should be                from what historically was superior                   the area occupied at the time of listing.
                                                 designated as critical habitat if they are              habitat, and it is possible to recover the            In practice, these concepts may be
                                                 determined to be ‘‘essential for the                    species if all of the marginal habitat is             largely the same, given that critical
                                                 conservation of the species.’’ Section                  thoroughly protected. However, a more                 habitat ideally should be designated at
                                                 424.12(b)(2) further describes the factors              certain and efficient path to recovery                or near the time of listing. Nevertheless,
                                                 the Services will consider in identifying               may involve the protection of a                       the Services find that it will reduce
                                                 any areas outside the geographical area                 relatively small subset of the marginal               confusion to change the regulations to
                                                 occupied by the species at the time of                  habitat combined with protection of                   track the statutory distinction. In
                                                 listing that may meet this aspect of the                some of the superior habitat (allowing                addition, because critical habitat may be
                                                 definition of ‘‘critical habitat.’’ Under               for natural expansion or artificial                   revised at any time, the statutory
                                                 § 424.12(b)(2), the Services will                       reintroduction). A variation of this                  distinction may be important during a
                                                 determine whether unoccupied areas                      scenario would involve habitat that may               revision, which could occur several
                                                 are essential for the conservation of the               currently be of high quality, but is                  years after the listing of the species.
                                                 species by considering ‘‘the life-history,              unlikely to remain that way due to the                   However, we note that unoccupied
                                                 status, and conservation needs of the                   effects of climate change. Given these                areas must be essential for the
                                                 species.’’ This will be further informed                scenarios, it will be useful for the                  conservation of the species, but need
                                                 by any generalized conservation                         Services to retain the flexibility to                 not have the features essential to the
                                                 strategy, criteria, or outline that may                 consider various paths to recovery in                 conservation of the species: This follows
                                                 have been developed for the species to                  considering what areas to designate as                directly from the inclusion of the
                                                 provide a substantive foundation for                    critical habitat.                                     ‘‘features essential’’ language in section
                                                 identifying which features and specific                    We conclude that a rigid step-wise                 3(5)(A)(i) but not in section 3(5)(A)(ii).
                                                 areas are essential to the conservation of              approach, i.e., first designating all                 Thus, even keeping in mind that
                                                 the species and, as a result, the                       occupied areas that meet the definition               ‘‘features’’ may include features that
                                                 development of the critical habitat                     of ‘‘critical habitat’’ (assuming that no             support the occurrence of ephemeral or
                                                 designation.                                            unoccupied habitat is designated) and                 dynamic habitat conditions, the
                                                    Section 424.12(b)(2) subsumes and                    then, only if that is not enough,                     Services may identify as areas essential
                                                 supersedes § 424.12(e) of the existing                  designating essential unoccupied                      to the conservation of the species areas
                                                 regulations. Existing section 424.12(e)                 habitat, does not necessarily serve the               that do not yet have the features, or
                                                 provides that the Secretary shall                       best conservation strategy for the                    degraded or successional areas that once
                                                 designate areas outside the                             species and, in some circumstances,                   had the features, or areas that contain
                                                 ‘‘geographical area presently occupied                  may result in a designation that is                   sources of or provide the processes that
                                                 by a species’’ only when ‘‘a designation                geographically larger but less effective              maintain essential features in other
                                                 limited to its present range would be                   as a conservation tool. Deleting current              areas. Areas may develop features over
                                                 inadequate to ensure the conservation of                § 424.12(e) will allow us to consider                 time, or, through special management
                                                 the species.’’ Although the existing                    including occupied and unoccupied                     considerations or protection. The
                                                 provision represents one reasonable                     areas in a critical habitat designation               conservation value may be influenced
                                                 approach to giving meaning to the term                  and to follow any general conservation                by the level of effort needed to manage
                                                 ‘‘essential’’ as it relates to unoccupied               strategy, criteria, or outline for the                degraded habitat to the point where it
                                                 areas, the Services find, based on years                species that may be developed. We                     could support the listed species. Under
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                                                 of applying the existing regulations, that              expect that the concurrent evaluation of              § 424.12(b)(2), the Services will identify
                                                 this provision is both unnecessary and                  occupied and unoccupied areas for a                   unoccupied areas, either with the
                                                 unintentionally limiting. While                         critical habitat designation will allow us            features or not, that are essential for the
                                                 Congress supplied two different                         to develop more precise designations                  conservation of a species. This section
                                                 standards to govern the Secretary’s                     that can serve as more effective                      is intended to provide a flexible, rather
                                                 designation of these two types of                       conservation tools, focusing                          than prescriptive, standard to allow the
                                                 habitat, there is no suggestion in the                  conservation resources where needed                   Services to tailor the inquiry about what


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                                                                  Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations                                         7435

                                                 is essential to the specific characteristics            example as it is not necessary for the                species is nuanced and has proven
                                                 and circumstances of the particular                     text of the regulation.                               confusing in other respects as well. For
                                                 species.                                                   We are removing current § 424.12(e),               species listed before passage of the 1982
                                                    The Services anticipate that critical                as this concept—designating specific                  amendments to the Act (October 13,
                                                 habitat designations in the future will                 areas outside the geographical area                   1982), any proposed regulations issued
                                                 likely increasingly use the authority to                occupied by the species at the time it is             by the Secretary to designate critical
                                                 designate specific areas outside the                    listed upon a determination by the                    habitat are governed by the provisions
                                                 geographical area occupied by the                       Secretary that such areas are essential               in section 4 of the Act applicable to
                                                 species at the time of listing following                for the conservation of the species—is                proposals to revise critical habitat
                                                 any generalized conservation strategy                   captured in revised § 424.12(b)(2).                   designations. This is specified in an
                                                 that might be developed for the species.                   We are redesignating the current                   uncodified provision of the 1982
                                                 As the effects of global climate change                 § 424.12(f) as § 424.12(e) and adding a               amendments. See Public Law 97–304,
                                                 continue to influence distribution and                  second sentence to emphasize that                     96 Stat. 1411, 1416, 2(b)(2), 16 U.S.C.
                                                 migration patterns of species, the ability              designation of critical habitat for species           1533 (note) (‘‘Any regulation proposed
                                                 to designate areas that a species has not               that were listed prior to 1978 is at the              after, or pending on, the date of the
                                                 historically occupied is expected to                    discretion of the Secretaries. The first              enactment of this Act to designate
                                                 become increasingly important. For                      sentence of § 424.12(e) provides that the             critical habitat for a species that was
                                                 example, such areas may provide                         Secretary ‘‘may designate critical habitat            determined before such date of
                                                 important connectivity between                          for those species listed as threatened or             enactment to be endangered or
                                                 habitats, serve as movement corridors,                  endangered species but for which no                   threatened shall be subject to the
                                                 or constitute emerging habitat for a                    critical habitat has been previously                  procedures set forth in section 4 of such
                                                 species experiencing range shifts in                    designated.’’ This is substantially the               Act of 1973 . . . for regulations
                                                 latitude or altitude (such as to follow                 same as current § 424.12(f) in the                    proposing revisions to critical habitat
                                                 available prey or host plants). Where the               existing regulations, although the                    instead of those for regulations
                                                 best available scientific data suggest that             Services have changed the passive voice               proposing the designation of critical
                                                 specific unoccupied areas are, or it is                 to the active voice.                                  habitat.’’); see also Center for Biological
                                                                                                            The new second sentence codifies in                Diversity v. FWS, 450 F.3d 930, 934–35
                                                 reasonable to determine from the record
                                                                                                         the regulations the principle that the                (9th Cir. 2006) (unarmored three-spine
                                                 that they will eventually become,
                                                                                                         decision whether to designate critical                stickleback). While the Services do not
                                                 necessary to support the species’
                                                                                                         habitat for species listed prior to the               propose to add regulatory text to
                                                 recovery, it may be appropriate to find                 effective date of the 1978 Amendments
                                                 that such areas are essential for the                                                                         address this narrow issue, we explain
                                                                                                         to the Act (November 10, 1978) is at the              below how these provisions must be
                                                 conservation of the species and thus                    discretion of the Secretary. This
                                                 meet the definition of ‘‘critical habitat.’’                                                                  understood within the general scheme
                                                                                                         principle is clearly reflected in the text            for designating critical habitat.
                                                    An example may clarify this situation:               of the statute and firmly grounded in the                As a result of the above-referenced
                                                 A butterfly depends on a particular host                legislative history. The definition of                provision of the 1982 amendments, final
                                                 plant. The host plant is currently found                ‘‘critical habitat’’ added to the Act in              regulations to designate critical habitat
                                                 in a particular area. The data show the                 1978 provided that the Secretary ‘‘may,’’             for species that were listed prior to
                                                 host plant’s range has been moving up                   but was not required to, establish                    October 13, 1982, are governed by
                                                 slope in response to warming                            critical habitat for species already listed           section 4(b)(6)(A)(i) of the Act. By
                                                 temperatures (following the cooler                      by the effective date of the 1978                     contrast, for species listed after October
                                                 temperatures) resulting from the effects                amendments. See Public Law 95–632,                    13, 1982, final regulations are governed
                                                 of climate change. Other butterfly                      92 Stat. 3751 (Nov. 10, 1978) (codified               by section 4(b)(6)(A)(ii). Proposed rules
                                                 species have been documented to have                    at 16 U.S.C. 1532(5)(B)); see also                    for species listed both pre- and post-
                                                 shifted from their historical ranges in                 Conservancy of Southwest Florida v.                   1982 are governed by section 4(b)(5).
                                                 response to changes in the range of host                United States Fish & Wildlife Service,                Thus, the Services have additional
                                                 plants. Therefore, we rationally                        No. 2:10–cv–106–FtM–SPC, 2011 WL                      options at the final rule stage with
                                                 conclude that the butterfly’s range will                1326805, *9 (M.D. Fla. April 6, 2011)                 regard to a proposal to designate critical
                                                 likely move up slope, and we would                      (Florida panther) (plain language of                  habitat for those species listed prior to
                                                 designate specific areas outside the                    statute renders designation of habitat for            1982 that they do not have when
                                                 geographical area occupied by the                       species listed prior to the 1978                      proposing to designate habitat for other
                                                 butterfly at the time it was listed if we               Amendments discretionary), aff’d, 677                 species. These include an option to
                                                 concluded this area was essential based                 F.3d 1073 (11th Cir. 2012); Fund for                  make a finding that the revision ‘‘should
                                                 on this information.                                    Animals v. Babbitt, 903 F. Supp. 96, 115              not be made’’ and to extend the 12-
                                                    Adherence to the process described                   n.8 (D.D.C. 1995) (grizzly bear) (same).              month deadline by an additional period
                                                 above will ensure compliance with the                   Similarly, the 1982 amendments                        of up to 6 months if there is substantial
                                                 requirement in section 3(5)(C) of the                   expressly exempted species listed prior               disagreement regarding the sufficiency
                                                 Act, which states that, except in those                 to the 1978 amendments from the                       or accuracy of available data. See 16
                                                 circumstances determined by the                         requirement that critical habitat be                  U.S.C. 1533(b)(6)(B)(i); see also Center
                                                 Secretary, critical habitat shall not                   designated concurrently with listing.                 for Biological Diversity, 450 F.3d at 936–
                                                 include the entire geographical area                    See Public Law 97–304, 96 Stat. 1411,                 37.
                                                 which can be occupied by the                            sec, 2(b)(4) (Oct. 13, 1982). To reduce                  These provisions, however, do not
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                                                 threatened or endangered species.                       potential confusion, the revised                      affect the handling or consideration of
                                                    Existing § 424.12(c) resulted from a                 regulations reflect the discretionary                 petitions seeking designation of critical
                                                 recent separate rulemaking (77 FR                       nature of designations for such species.              habitat for species listed prior to 1982.
                                                 25611; May 1, 2012); it is not addressed                   As recent litigation has highlighted,              The term ‘‘petition’’ is not used in
                                                 in this rulemaking.                                     the statutory history regarding the                   section 2(b)(2) of the 1982 amendments
                                                    Section 424.12(d) includes minor                     procedures for undertaking proposals to               to the Act (compare to section 2(b)(1) of
                                                 language changes and removes the                        designate critical habitat for certain                the same amendments, which mentions


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                                                 7436             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                 ‘‘[a]ny petition’’ and ‘‘any regulation’’).             which critical habitat would otherwise                As part of this process, FWS will also
                                                 Thus, the special procedures for                        be proposed.’’ We, therefore, conclude                conduct consultation under section
                                                 finalizing proposals to designate critical              that Congress intended ‘‘benefit’’ to                 7(a)(2) of the Act, if listed species or
                                                 habitat for species listed prior to 1982                mean ‘‘conservation benefit.’’ In                     designated critical habitat may be
                                                 come into play only upon a decision by                  addition, because a finding of benefit                affected by the actions included in the
                                                 the Secretary to actually propose to                    results in an exemption from critical                 INRMP. Section 7(a)(2) of the Act will
                                                 designate critical habitat for such                     habitat designation, and given the                    continue to apply to any Federal actions
                                                 species. Petitions seeking such                         specific mention of ‘‘habitat protection,             affecting the species once an INRMP is
                                                 designations are managed just like any                  maintenance, and improvement’’ in the                 compliant or operation. However, if the
                                                 other petition seeking designation,                     conference report, we infer that                      area is ineligible for critical habitat
                                                 which are governed by the provisions of                 Congress intended that an INRMP                       designation under section 4(a)(3)(B)(i),
                                                 the Administrative Procedure Act rather                 provide a conservation benefit to the                 then those consultations would address
                                                 than section 4 of the Endangered                        habitat (e.g., essential features) of the
                                                                                                                                                               only effects to the species and the
                                                 Species Act. See 50 CFR 424.14(d);                      species, in addition to the species.
                                                                                                                                                               likelihood of the Federal action to
                                                 Conservancy of Southwest Florida, 2011                  Examples of actions that provide
                                                 WL 1326805, at *9 (‘‘It is the Secretary’s              habitat-based conservation benefit to the             jeopardize the continued existence of
                                                 proposal to designate critical habitat                  species include: Reducing fragmentation               the species.
                                                 that triggers the statutory and regulatory              of habitat; maintaining or increasing                    New § 424.12(h) specifies that an
                                                 obligations, not plaintiffs’ requests that              populations in the wild; planning for                 INRMP must be compliant or
                                                 the Secretary do so.’’); Fund for Animals               catastrophic events; protecting,                      operational to make an area ineligible
                                                 v. Babbitt, 903 F. Supp. at 115 (petitions              enhancing, or restoring habitats;                     for designation under section
                                                 to designate critical habitat are governed              buffering protected areas; and testing                4(a)(3)(B)(i). When the Department of
                                                 by the APA, not the ESA).                               and implementing new habitat-based                    Defense provides a draft INRMP for the
                                                    We are redesignating current                         conservation strategies.                              Services’ consideration during
                                                 § 424.12(g) as § 424.12(f) with minor                      In the conference report, Congress                 development of a critical habitat
                                                 language changes.                                       further instructed the Secretary to                   designation, the Services may evaluate
                                                    We are redesignating current                         ‘‘establish criteria that would be used to            it following the guidelines set forth in
                                                 § 424.12(h) as § 424.12(g) with minor                   determine if an INRMP benefits the                    our Policy on Exclusions from Critical
                                                 language changes.                                       listed species.’’ The Services, therefore,
                                                    We are adding new § 424.12(h). This                                                                        Habitat under Section 4(b)(2) of the Act.
                                                                                                         describe in § 424.12(h) some factors that
                                                 paragraph reflects the amendment to                     will help us determine whether an                        Existing § 424.19 results from a
                                                 section 4(a)(3)(B)(i) of the Act in the                 INRMP provides a conservation benefit:                recent, separate rulemaking (78 FR
                                                 National Defense Authorization Act for                  (1) The extent of area and features                   53058), and is not addressed in this
                                                 Fiscal Year 2004 (Pub. L. 108–136).                     present; (2) the type and frequency of                rulemaking.
                                                 Section 424.12(h) codifies the                          use of the area by the species; (3) the
                                                 amendments to the Act that prohibit the                                                                       Required Determinations
                                                                                                         relevant elements of the INRMP in terms
                                                 Services from designating as critical                   of management objectives, activities                  Regulatory Planning and Review—
                                                 habitat lands or other geographic areas                 covered, and best management                          Executive Orders 12866 and 13563
                                                 owned or controlled by the Department                   practices, and the certainty that the
                                                 of Defense, or designated for its use, if               relevant elements will be implemented;                  Executive Order 12866 provides that
                                                 those lands are subject to an integrated                and (4) the degree to which the relevant              the Office of Information and Regulatory
                                                 natural resources management plan                       elements of the INRMP will protect the                Affairs (OIRA) in the Office of
                                                 (INRMP) prepared under section 101 of                   habitat from the types of effects that                Management and Budget will review all
                                                 the Sikes Act (16 U.S.C. 670a), and if the              would be addressed through a                          significant rules. The Office of
                                                 Secretary determines in writing that                    destruction-or-adverse-modification                   Information and Regulatory Affairs has
                                                 such plan provides a benefit to the                     analysis. FWS will defer to our                       determined that this rule is significant.
                                                 species for which critical habitat is                   Guidelines for Coordination on                          Executive Order 13563 reaffirms the
                                                 being designated. In other words, if the                Integrated Natural Resource                           principles of E.O. 12866 while calling
                                                 Services conclude that an INRMP                         Management Plans in evaluating these                  for improvements in the nation’s
                                                 ‘‘benefits’’ the species, the area covered              plans.                                                regulatory system to promote
                                                 is ineligible for designation. Unlike the                  Under the Sikes Act, the Department
                                                 Secretary’s decision on exclusions                                                                            predictability, to reduce uncertainty,
                                                                                                         of Defense is also instructed to prepare
                                                 under section 4(b)(2) of the Act, this                                                                        and to use the best, most innovative,
                                                                                                         INRMPs in cooperation with FWS and
                                                 resulting exemption is not subject to the               each appropriate State fish and wildlife              and least burdensome tools for
                                                 discretion of the Secretary (once a                     agency. The compliant or operational                  achieving regulatory ends. The
                                                 benefit has been found).                                INRMP must reflect the mutual                         executive order directs agencies to
                                                    Neither the Act nor the National                     agreement of the involved agencies on                 consider regulatory approaches that
                                                 Defense Authorization Act for Fiscal                    the conservation, protection, and                     reduce burdens and maintain flexibility
                                                 Year 2004 defines the term ‘‘benefit.’’                 management of fish and wildlife                       and freedom of choice for the public
                                                 However, the conference report on the                   resources. In other words, FWS must                   where these approaches are relevant,
                                                 2004 National Defense Authorization                     agree with an INRMP (reflected by                     feasible, and consistent with regulatory
                                                 Act (Report 108–354) instructed the                     signature of the plan or letter of                    objectives. E.O. 13563 emphasizes
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                                                 Secretary to ‘‘assess an INRMP’s                        concurrence pursuant to the Sikes Act                 further that regulations must be based
                                                 potential contribution to species                       (not to be confused with a letter of                  on the best available science and that
                                                 conservation, giving due regard to those                concurrence issued in relation to                     the rulemaking process must allow for
                                                 habitat protection, maintenance, and                    consultation under section 7(a)(2) of the             public participation and an open
                                                 improvement projects . . . that address                 Act)) before an INRMP can be relied                   exchange of ideas. We have developed
                                                 the particular conservation and                         upon for making an area ineligible for                this rule in a manner consistent with
                                                 protection needs of the species for                     designation under section 4(a)(3)(B)(i).              these requirements.


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                                                                  Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations                                        7437

                                                 Regulatory Flexibility Act                              Government Agency Plan is not                         Department of the Interior’s manual at
                                                    Under the Regulatory Flexibility Act                 required. As explained above, small                   512 DM 2, and the Department of
                                                 (as amended by the Small Business                       governments will not be affected                      Commerce (DOC) Tribal Consultation
                                                 Regulatory Enforcement Fairness Act                     because the regulations will not place                and Coordination Policy’’/(May 21,
                                                 (SBREFA) of 1996; 5 U.S.C. 601 et seq.),                additional requirements on any city,                  2013), DOC Departmental
                                                 whenever a Federal agency is required                   county, or other local municipalities.                Administrative Order (DAO) 218–8, and
                                                 to publish a notice of rulemaking for                      (b) These regulations will not produce             NOAA Administrative Order (NAO)
                                                 any proposed or final rule, it must                     a Federal mandate on State, local, or                 218–8 (April 2012), we have considered
                                                 prepare, and make available for public                  tribal governments or the private sector              possible effects of this final rule on
                                                                                                         of $100 million or greater in any year;               federally recognized Indian Tribes.
                                                 comment, a regulatory flexibility
                                                                                                         that is, this rule is not a ‘‘significant             Following an exchange of information
                                                 analysis that describes the effect of the
                                                                                                         regulatory action’’ under the Unfunded                with tribal representatives, we have
                                                 rule on small entities (i.e., small
                                                                                                         Mandates Reform Act. These regulations                determined that this rule, which
                                                 businesses, small organizations, and
                                                                                                         will impose no obligations on State,                  modifies the general framework for
                                                 small government jurisdictions).
                                                                                                         local, or tribal governments.                         designating critical habitat under the
                                                 However, no regulatory flexibility
                                                                                                                                                               ESA, does not have tribal implications
                                                 analysis is required if the head of an                  Takings (E.O. 12630)                                  as defined in Executive Order 13175.
                                                 agency, or his designee, certifies that the               In accordance with Executive Order                  We will continue to collaborate/
                                                 rule will not have a significant                        12630, these regulations will not have                coordinate with tribes on issues related
                                                 economic impact on a substantial                        significant takings implications. These               to federally listed species and their
                                                 number of small entities. SBREFA                        regulations will not pertain to ‘‘taking’’            habitats and work with them as
                                                 amended the Regulatory Flexibility Act                  of private property interests, nor will               appropriate as we develop particular
                                                 to require Federal agencies to provide a                they directly affect private property. A              critical habitat designations, including
                                                 statement of the factual basis for                      takings implication assessment is not                 consideration of potential exclusion on
                                                 certifying that a rule will not have a                  required because these regulations (1)                the basis of tribal interests. See Joint
                                                 significant economic impact on a                        will not effectively compel a property                Secretarial Order 3206 (‘‘American
                                                 substantial number of small entities. We                owner to suffer a physical invasion of                Indian Tribal Rights, Federal-Tribal
                                                 certified that the proposed rule to                     property and (2) will not deny all                    Trust Responsibilities, and the
                                                 implement these changes to the 50 CFR                   economically beneficial or productive                 Endangered Species Act’’, June 5, 1997).
                                                 part 424 regulations would not have a                   use of the land or aquatic resources.
                                                 significant economic impact on a                                                                              Paperwork Reduction Act
                                                                                                         These regulations will substantially
                                                 substantial number of small entities (79                advance a legitimate government                         This rule does not contain any new
                                                 FR 27066, at 27075). Several                            interest (conservation and recovery of                collections of information that require
                                                 commenters objected to the Services’                    endangered and threatened species) and                approval by the OMB under the
                                                 determination that a regulatory                         will not present a barrier to all                     Paperwork Reduction Act. This rule will
                                                 flexibility analysis is not required for                reasonable and expected beneficial use                not impose recordkeeping or reporting
                                                 this regulation, stating the regulated                  of private property.                                  requirements on State or local
                                                 community is affected by this                                                                                 governments, individuals, businesses, or
                                                 regulation. We explained that NMFS                      Federalism (E.O. 13132)                               organizations. An agency may not
                                                 and FWS are the only entities that are                    In accordance with Executive Order                  conduct or sponsor, and a person is not
                                                 directly affected by this rule because we               13132, we have considered whether                     required to respond to, a collection of
                                                 are the only entities that designate                    these regulations will have significant               information unless it displays a
                                                 critical habitat, and this rule pertains to             Federalism effects and have determined                currently valid OMB control number.
                                                 the procedures for carrying out those                   that a Federalism assessment is not
                                                 designations (See our response to                                                                             National Environmental Policy Act
                                                                                                         required. These regulations pertain only
                                                 Comment 81). No external entities,                      to determinations to designate critical                 We have analyzed these regulations in
                                                 including any small businesses, small                   habitat under section 4 of the Act, and               accordance with the criteria of the
                                                 organizations, or small governments,                    will not have substantial direct effects              National Environmental Policy Act
                                                 will experience any direct economic                     on the States, on the relationship                    (NEPA), the Department of the Interior
                                                 impacts from this rule. No information                  between the Federal Government and                    regulations on Implementation of the
                                                 received during the public comment                      the States, or on the distribution of                 National Environmental Policy Act (43
                                                 period leads us to change our analysis.                 power and responsibilities among the                  CFR 46.10–46.450), the Department of
                                                                                                         various levels of government.                         the Interior Manual (516 DM 1–6 and
                                                 Unfunded Mandates Reform Act (2                                                                               8)), and National Oceanic and
                                                 U.S.C. 1501 et seq.)                                    Civil Justice Reform (E.O. 12988)                     Atmospheric Administration (NOAA)
                                                    In accordance with the Unfunded                        These regulations do not unduly                     Administrative Order 216–6. Our
                                                 Mandates Reform Act (2 U.S.C. 1501 et                   burden the judicial system and meet the               analysis includes evaluating whether
                                                 seq.):                                                  applicable standards provided in                      this action is procedural, administrative,
                                                    (a) On the basis of information                      sections 3(a) and 3(b)(2) of Executive                or legal in nature and, therefore, a
                                                 contained in the ‘‘Regulatory Flexibility               Order 12988. These regulations will                   categorical exclusion applies.
                                                 Act’’ section above, these regulations                  clarify how the Services will make                      Following a review of the changes to
                                                 will not ‘‘significantly or uniquely’’                  designations of critical habitat under                the regulations at 50 CFR 424.01,
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                                                 affect small governments. We have                       section 4 of the Act.                                 424.02, and 424.12 and our
                                                 determined and certify pursuant to the                                                                        requirements under NEPA, we find that
                                                 Unfunded Mandates Reform Act, 2                         Government-to-Government                              the categorical exclusion found at 43
                                                 U.S.C. 1502, that these regulations will                Relationship With Tribes                              CFR 46.210(i) applies to these regulation
                                                 not impose a cost of $100 million or                      In accordance with Executive Order                  changes. At 43 CFR 46.210(i), the
                                                 more in any given year on local or State                13175 ‘‘Consultation and Coordination                 Department of the Interior has found
                                                 governments or private entities. A Small                with Indian Tribal Governments,’’ the                 that the following category of actions


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                                                 7438             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                 would not individually or cumulatively                  to reflect plain language standards. The              Energy Supply, Distribution or Use (E.O.
                                                 have a significant effect on the human                  regulation revision as a whole carries                13211)
                                                 environment and are, therefore,                         out the requirements of Executive Order                 Executive Order 13211 requires
                                                 categorically excluded from the                         13563 because, in this rule, the Services             agencies to prepare Statements of
                                                 requirement for completion of an                        have analyzed existing rules                          Energy Effects when undertaking certain
                                                 environmental assessment or                             retrospectively ‘‘to make the agencies’               actions. These regulations are not
                                                 environmental impact statement:                         regulatory program more effective or                  expected to affect energy supplies,
                                                    ‘‘Policies, directives, regulations, and             less burdensome in achieving the                      distribution, and use. Therefore, this
                                                 guidelines: that are of an administrative,
                                                                                                         regulatory objectives.’’ None of the                  action is a not a significant energy
                                                 financial, legal, technical, or procedural
                                                                                                         changes to the text of the regulation will            action, and no Statement of Energy
                                                 nature.’’
                                                    NOAA Administrative Order 216–6                      result in changes to the opportunity for              Effects is required.
                                                 contains a substantively identical                      public involvement in any critical                    References Cited
                                                 exclusion for ‘‘policy directives,                      habitat designations.
                                                                                                                                                                 A complete list of all references cited
                                                 regulations and guidelines of an                           We also considered whether any                     in this document is available on the
                                                 administrative, financial, legal,                       ‘‘extraordinary circumstances’’ apply to              Internet at http://www.regulations.gov
                                                 technical or procedural nature.’’                       this situation, such that the DOI                     or upon request from the U.S. Fish and
                                                 § 6.03c.3(i).                                           categorical exclusion would not apply.                Wildlife Service (see FOR FURTHER
                                                    At the time DOI’s categorical                        See 43 CFR 46.215 (‘‘Categorical                      INFORMATION CONTACT).
                                                 exclusion was promulgated, there was                    Exclusions: Extraordinary
                                                 no preamble language that would assist                                                                        Authority
                                                                                                         Circumstances’’). We determined that
                                                 in interpreting what kinds of actions fall                                                                      We are taking this action under the
                                                                                                         no extraordinary circumstances apply.
                                                 within the categorical exclusion.                                                                             authority of the Endangered Species Act
                                                 However, in 2008, the preamble for a                    Although the final regulations would
                                                                                                         revise the implementing regulations for               of 1973, as amended (16 U.S.C. 1531 et
                                                 language correction to this categorical                                                                       seq.).
                                                 exclusion gave as an example of an                      section 4 of the Act, the effects of these
                                                 action that would fall within the                       proposed changes would not ‘‘have                     List of Subjects in 50 CFR Part 424
                                                 exclusion the issuance of guidance to                   significant impacts on species listed, or
                                                                                                                                                                 Administrative practice and
                                                 applicants for transferring funds                       proposed to be listed, on the List of                 procedure, Endangered and threatened
                                                 electronically to the Federal                           Endangered or Threatened Species or                   species.
                                                 Government. In addition, examples of                    have significant impacts on designated
                                                 recent Federal Register notices invoking                Critical Habitat for these species,’’ as              Regulation Promulgation
                                                 this categorical exclusion include a final              nothing in the revised regulations is                   Accordingly, we are amending part
                                                 rule that established the timing                        intended to require that any previously               424, subchapter A of chapter IV, title 50
                                                 requirements for the submission of a                    listed species or completed critical                  of the Code of Federal Regulations, as
                                                 Site Assessment Plan or General                         habitat designation be reevaluated on                 set forth below:
                                                 Activities Plan for a renewable energy                  this basis. Furthermore, the revised
                                                 project on the Outer Continental Shelf                  regulations do not ‘‘[e]stablish a                    PART 424—[AMENDED]
                                                 (78 FR 12676; February 26, 2013), a final               precedent for future action or represent
                                                 rule that established limited liability for                                                                   ■ 1. The authority citation for part 424
                                                                                                         a decision in principle about future                  continues to read as follows:
                                                 Noncoal Reclamation by Certified States                 actions with potentially significant
                                                 and Indian Tribes (78 FR 8822; February                                                                           Authority: 16 U.S.C. 1531 et seq.
                                                                                                         environmental effects’’ (43 CFR
                                                 6, 2013), and a final rule changing the                                                                       ■   2. Revise § 424.01 to read as follows:
                                                                                                         46.215(e)). None of the extraordinary
                                                 tenure of eagle permits (77 FR 22267;
                                                 April 13, 2012). These regulations fell                 circumstances in 43 CFR 46.215(a)                     § 424.01    Scope and purpose.
                                                 within the categorical exclusion because                through (l) apply to the revised
                                                                                                                                                                  (a) Part 424 provides regulations for
                                                 they did not result in any substantive                  regulations in 50 CFR 424.01, 424.02, or              revising the Lists of Endangered and
                                                 change. In no way did they alter the                    424.12.                                               Threatened Wildlife and Plants and
                                                 standards for, or outcome of, any                          Nor would the final regulations trigger            designating or revising the critical
                                                 physical or regulatory Federal actions.                 any of the extraordinary circumstances                habitats of listed species. Part 424
                                                    The changes to the critical habitat                  of NAO 216–6. This rule does not                      provides criteria for determining
                                                 designation criteria are similar to these               involve a geographic area with unique                 whether species are endangered or
                                                 examples of actions that are                            characteristics, is not the subject of                threatened species and for designating
                                                 fundamentally administrative,                           public controversy based on potential                 critical habitats. Part 424 also
                                                 technical, and procedural in nature. The                environmental consequences, will not                  establishes procedures for receiving and
                                                 changes to the regulations at 50 CFR                    result in uncertain environmental                     considering petitions to revise the lists
                                                 424.01, 424.02, and 424.12 (except for                  impacts or unique or unknown risks,                   and for conducting periodic reviews of
                                                 paragraph (c)) clarify the procedures                   does not establish a precedent or                     listed species.
                                                 and criteria used for designating critical                                                                       (b) The purpose of the regulations in
                                                                                                         decision in principle about future
                                                 habitat, addressing in particular several                                                                     part 424 is to interpret and implement
                                                                                                         proposals, will not have significant
                                                 key issues that have been subject to                                                                          those portions of the Act that pertain to
                                                                                                         cumulative impacts, and will not have
                                                 frequent litigation. In addition, the                                                                         the listing of species as threatened or
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                                                                                                         any adverse effects upon endangered or
                                                 regulation revisions to 50 CFR 424.01,                                                                        endangered species and the designation
                                                 424.02, and 424.12 better track the                     threatened species or their habitats.
                                                                                                         § 5.05c.                                              of critical habitat.
                                                 statutory language of the Act and make                                                                        ■ 3. Revise § 424.02 to read as follows:
                                                 transparent practices the Services follow                  We completed an Environmental
                                                 as a result of case law. The Services also              Action Statement for the Categorical                  § 424.02    Definitions.
                                                 make minor wording and formatting                       Exclusion for the revised regulations in                The definitions contained in the Act
                                                 revisions throughout the three sections                 50 CFR 424.01, 424.02, and 424.12.                    and parts 17, 222, and 402 of this title


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                                                                  Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations                                          7439

                                                 apply to this part, unless specifically                 permit an exchange of information and                    (2) Designation of critical habitat is
                                                 modified by one of the following                        opinion on a proposed rule.                           not determinable when one or both of
                                                 definitions. Definitions contained in                     Special management considerations                   the following situations exist:
                                                 part 17 of this title apply only to species             or protection. Methods or procedures                     (i) Data sufficient to perform required
                                                 under the jurisdiction of the U.S. Fish                 useful in protecting the physical or                  analyses are lacking; or
                                                 and Wildlife Service. Definitions                       biological features essential to the                     (ii) The biological needs of the species
                                                 contained in part 222 of this title apply               conservation of listed species.                       are not sufficiently well known to
                                                 only to species under the jurisdiction of                 Species. Includes any species or                    identify any area that meets the
                                                 the National Marine Fisheries Service.                  subspecies of fish, wildlife, or plant,               definition of ‘‘critical habitat.’’
                                                    Candidate. Any species being                         and any distinct population segment of                   (b) Where designation of critical
                                                 considered by the Secretary for listing as              any vertebrate species that interbreeds               habitat is prudent and determinable, the
                                                 an endangered or threatened species,                    when mature. Excluded is any species                  Secretary will identify specific areas
                                                 but not yet the subject of a proposed                   of the Class Insecta determined by the                within the geographical area occupied
                                                 rule.                                                   Secretary to constitute a pest whose                  by the species at the time of listing and
                                                    Conserve, conserving, and                            protection under the provisions of the                any specific areas outside the
                                                 conservation. To use and the use of all                 Act would present an overwhelming                     geographical area occupied by the
                                                 methods and procedures that are                         and overriding risk to man.                           species to be considered for designation
                                                 necessary to bring any endangered or                      Wildlife or fish and wildlife. Any                  as critical habitat.
                                                 threatened species to the point at which                member of the animal kingdom,                            (1) The Secretary will identify, at a
                                                 the measures provided pursuant to the                   including without limitation, any                     scale determined by the Secretary to be
                                                 Act are no longer necessary, i.e., the                  vertebrate, mollusk, crustacean,                      appropriate, specific areas within the
                                                 species is recovered in accordance with                 arthropod, or other invertebrate, and                 geographical area occupied by the
                                                 § 402.02 of this chapter. Such methods                  includes any part, product, egg, or                   species for consideration as critical
                                                 and procedures include, but are not                     offspring thereof, or the dead body or                habitat. The Secretary will:
                                                 limited to, all activities associated with              parts thereof.                                           (i) Identify the geographical area
                                                 scientific resources management such as                 ■ 4. In § 424.12, revise paragraphs (a),
                                                                                                                                                               occupied by the species at the time of
                                                 research, census, law enforcement,                      (b), and (d) through (h) to read as                   listing.
                                                 habitat acquisition and maintenance,                    follows:                                                 (ii) Identify physical and biological
                                                 propagation, live trapping, and                                                                               features essential to the conservation of
                                                 transplantation, and, in the                            § 424.12    Criteria for designating critical         the species at an appropriate level of
                                                 extraordinary case where population                     habitat.                                              specificity using the best available
                                                 pressures within a given ecosystem                         (a) To the maximum extent prudent                  scientific data. This analysis will vary
                                                 cannot be otherwise relieved, may                       and determinable, we will propose and                 between species and may include
                                                 include regulated taking.                               finalize critical habitat designations                consideration of the appropriate quality,
                                                    Geographical area occupied by the                    concurrent with issuing proposed and                  quantity, and spatial and temporal
                                                 species. An area that may generally be                  final listing rules, respectively. If                 arrangements of such features in the
                                                 delineated around species’ occurrences,                 designation of critical habitat is not                context of the life history, status, and
                                                 as determined by the Secretary (i.e.,                   prudent or if critical habitat is not                 conservation needs of the species.
                                                 range). Such areas may include those                    determinable, the Secretary will state                   (iii) Determine the specific areas
                                                 areas used throughout all or part of the                the reasons for not designating critical              within the geographical area occupied
                                                 species’ life cycle, even if not used on                habitat in the publication of proposed                by the species that contain the physical
                                                 a regular basis (e.g., migratory corridors,             and final rules listing a species. The                or biological features essential to the
                                                 seasonal habitats, and habitats used                    Secretary will make a final designation               conservation of the species.
                                                 periodically, but not solely by vagrant                 of critical habitat on the basis of the best             (iv) Determine which of these features
                                                 individuals).                                           scientific data available, after taking into          may require special management
                                                    List or lists. The Lists of Endangered               consideration the probable economic,                  considerations or protection.
                                                 and Threatened Wildlife and Plants                      national security, and other relevant                    (2) The Secretary will identify, at a
                                                 found at 50 CFR 17.11(h) or 17.12(h).                   impacts of making such a designation in               scale determined by the Secretary to be
                                                    Physical or biological features. The                 accordance with § 424.19.                             appropriate, specific areas outside the
                                                 features that support the life-history                     (1) A designation of critical habitat is           geographical area occupied by the
                                                 needs of the species, including but not                 not prudent when any of the following                 species that are essential for its
                                                 limited to, water characteristics, soil                 situations exist:                                     conservation, considering the life
                                                 type, geological features, sites, prey,                    (i) The species is threatened by taking            history, status, and conservation needs
                                                 vegetation, symbiotic species, or other                 or other human activity, and                          of the species based on the best
                                                 features. A feature may be a single                     identification of critical habitat can be             available scientific data.
                                                 habitat characteristic, or a more                       expected to increase the degree of such               *       *    *     *     *
                                                 complex combination of habitat                          threat to the species; or                                (d) When several habitats, each
                                                 characteristics. Features may include                      (ii) Such designation of critical habitat          satisfying the requirements for
                                                 habitat characteristics that support                    would not be beneficial to the species.               designation as critical habitat, are
                                                 ephemeral or dynamic habitat                            In determining whether a designation                  located in proximity to one another, the
                                                 conditions. Features may also be                        would not be beneficial, the factors the              Secretary may designate an inclusive
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                                                 expressed in terms relating to principles               Services may consider include but are                 area as critical habitat.
                                                 of conservation biology, such as patch                  not limited to: Whether the present or                   (e) The Secretary may designate
                                                 size, distribution distances, and                       threatened destruction, modification, or              critical habitat for those species listed as
                                                 connectivity.                                           curtailment of a species’ habitat or range            threatened or endangered but for which
                                                    Public hearing. An informal hearing                  is not a threat to the species, or whether            no critical habitat has been previously
                                                 to provide the public with the                          any areas meet the definition of ‘‘critical           designated. For species listed prior to
                                                 opportunity to give comments and to                     habitat.’’                                            November 10, 1978, the designation of


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                                                 7440             Federal Register / Vol. 81, No. 28 / Thursday, February 11, 2016 / Rules and Regulations

                                                 critical habitat is at the discretion of the            the Sikes Act (16 U.S.C. 670a) if the                   (4) The degree to which the relevant
                                                 Secretary.                                              Secretary determines in writing that                  elements of the INRMP will protect the
                                                   (f) The Secretary may revise existing                 such plan provides a conservation                     habitat from the types of effects that
                                                 designations of critical habitat according              benefit to the species for which critical             would be addressed through a
                                                 to procedures in this section as new                    habitat is being designated. In                       destruction-or-adverse-modification
                                                 data become available.                                  determining whether such a benefit is                 analysis.
                                                   (g) The Secretary will not designate                  provided, the Secretary will consider:                  Dated: January 29, 2016.
                                                 critical habitat within foreign countries                 (1) The extent of the area and features
                                                 or in other areas outside of the                                                                              Michael J. Bean,
                                                                                                         present;                                              Principal Deputy Assistant Secretary for Fish
                                                 jurisdiction of the United States.
                                                   (h) The Secretary will not designate as                 (2) The type and frequency of use of                and Wildlife and Parks.
                                                 critical habitat land or other geographic               the area by the species;                                Dated: January 29, 2016.
                                                 areas owned or controlled by the                          (3) The relevant elements of the                    Samuel D. Rauch, III,
                                                 Department of Defense, or designated                    INRMP in terms of management                          Deputy Assistant Administrator for
                                                 for its use, that are subject to a                      objectives, activities covered, and best              Regulatory Programs, National Marine
                                                 compliant or operational integrated                     management practices, and the certainty               Fisheries Service.
                                                 natural resources management plan                       that the relevant elements will be                    [FR Doc. 2016–02680 Filed 2–10–16; 8:45 am]
                                                 (INRMP) prepared under section 101 of                   implemented; and                                      BILLING CODE 4310–55–P; 3510–22–P
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Document Created: 2016-02-11 00:03:38
Document Modified: 2016-02-11 00:03:38
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
ContactDouglas Krofta, U.S. Fish and Wildlife Service, Division of Conservation and Classification, 5275 Leesburg Pike, Falls Church, VA 22041, telephone 703/358-2527; facsimile 703/ 358-1735; or Marta Nammack, National Marine Fisheries Service, Office of Protected Resources, 1315 East-West Highway, Silver Spring, MD 20910, telephone 301/427-8469; facsimile 301/713-0376. If you use a telecommunications device for the deaf (TDD), call the Federal Information Relay Service (FIRS) at 800-877-8339.
FR Citation81 FR 7413 
RIN Number1018-AX86 and 0648-BB79
CFR AssociatedAdministrative Practice and Procedure and Endangered and Threatened Species

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