81_FR_36952 81 FR 36842 - Air Plan Approval; South Carolina; Prong 4-2008 Ozone, 2010 NO2,

81 FR 36842 - Air Plan Approval; South Carolina; Prong 4-2008 Ozone, 2010 NO2,

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 81, Issue 110 (June 8, 2016)

Page Range36842-36848
FR Document2016-13606

The Environmental Protection Agency (EPA) is proposing to conditionally approve the portions of revisions to the South Carolina State Implementation Plan (SIP), submitted by the South Carolina Department of Health and Environmental Control (SC DHEC), addressing the Clean Air Act (CAA or Act) visibility transport (prong 4) infrastructure SIP requirements for the 2008 8-hour Ozone, 2010 1-hour Nitrogen Dioxide (NO<INF>2</INF>), 2010 1-hour Sulfur Dioxide (SO<INF>2</INF>), and 2012 annual Fine Particulate Matter (PM<INF>2.5</INF>) National Ambient Air Quality Standards (NAAQS). The CAA requires that each state adopt and submit a SIP for the implementation, maintenance, and enforcement of each NAAQS promulgated by EPA, commonly referred to as an ``infrastructure SIP.'' Specifically, EPA is proposing to conditionally approve the prong 4 portions of South Carolina's July 17, 2008, 8-hour Ozone infrastructure SIP submission; April 30, 2014, 2010 1-hour NO<INF>2</INF> infrastructure SIP submission; May 8, 2014, 2010 1-hour SO<INF>2</INF> infrastructure SIP submission; and December 18, 2015, 2012 annual PM<INF>2.5</INF> infrastructure SIP submission. All other applicable infrastructure requirements for these SIP submissions have been or will be addressed in separate rulemakings.

Federal Register, Volume 81 Issue 110 (Wednesday, June 8, 2016)
[Federal Register Volume 81, Number 110 (Wednesday, June 8, 2016)]
[Proposed Rules]
[Pages 36842-36848]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-13606]


=======================================================================
-----------------------------------------------------------------------

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R04-OAR-2016-0247; FRL-9947-40-Region 4]


Air Plan Approval; South Carolina; Prong 4--2008 Ozone, 2010 NO2, 
SO2, and 2012 PM2.5

AGENCY: Environmental Protection Agency.

ACTION: Proposed rule.

-----------------------------------------------------------------------

SUMMARY: The Environmental Protection Agency (EPA) is proposing to 
conditionally approve the portions of revisions to the South Carolina 
State Implementation Plan (SIP), submitted by the South Carolina 
Department of Health and Environmental Control (SC DHEC), addressing 
the Clean Air Act (CAA or Act) visibility transport (prong 4) 
infrastructure SIP requirements for the 2008 8-hour Ozone, 2010 1-hour 
Nitrogen Dioxide (NO2), 2010 1-hour Sulfur Dioxide 
(SO2), and 2012 annual Fine Particulate Matter 
(PM2.5) National Ambient Air Quality Standards (NAAQS). The 
CAA requires that each state adopt and submit a SIP for the 
implementation, maintenance, and enforcement of each NAAQS promulgated 
by EPA, commonly referred to as an ``infrastructure SIP.'' 
Specifically, EPA is proposing to conditionally approve the prong 4 
portions of South Carolina's July 17, 2008, 8-hour Ozone infrastructure 
SIP submission; April 30, 2014, 2010 1-hour NO2 
infrastructure SIP submission; May 8, 2014, 2010 1-hour SO2 
infrastructure SIP submission; and December 18, 2015, 2012 annual 
PM2.5 infrastructure SIP submission. All other applicable 
infrastructure requirements for these SIP submissions have been or will 
be addressed in separate rulemakings.

DATES: Comments must be received on or before July 8, 2016.

ADDRESSES: Submit your comments, identified by Docket ID No EPA-R04-
OAR-2016-0247 at http://www.regulations.gov. Follow the online 
instructions for submitting comments. Once submitted, comments cannot 
be edited or removed from Regulations.gov. EPA may publish any comment 
received to its public docket. Do not submit electronically any 
information you consider to be Confidential Business Information (CBI) 
or other information whose disclosure is restricted by statute. 
Multimedia submissions (audio, video, etc.) must be accompanied by a 
written comment. The written comment is considered the official comment 
and should include discussion of all points you wish to make. EPA will 
generally not consider comments or comment contents located outside of 
the primary submission (i.e. on the web, cloud, or other file sharing 
system). For additional submission methods, the full EPA public comment 
policy, information about CBI or multimedia submissions, and general 
guidance on making effective comments, please visit http://www2.epa.gov/dockets/commenting-epa-dockets.

FOR FURTHER INFORMATION CONTACT: Sean Lakeman of the Air Regulatory 
Management Section, Air Planning and Implementation Branch, Air, 
Pesticides and Toxics Management Division, U.S. Environmental 
Protection Agency, Region 4, 61 Forsyth Street SW., Atlanta, Georgia 
30303-8960. Mr. Lakeman can be reached by telephone at (404) 562-9043 
or via electronic mail at [email protected].

SUPPLEMENTARY INFORMATION:

I. Background

    By statute, SIPs meeting the requirements of sections 110(a)(1) and 
(2) of the CAA are to be submitted by states within three years after 
promulgation of a new or revised NAAQS to provide for the 
implementation, maintenance, and enforcement of the new or revised 
NAAQS. EPA has historically referred to these SIP submissions made for 
the purpose of satisfying the requirements of sections 110(a)(1) and 
110(a)(2) as ``infrastructure SIP'' submissions. Sections 110(a)(1) and 
(2) require states to address basic SIP elements such as the 
requirements for monitoring, basic program requirements, and legal

[[Page 36843]]

authority that are designed to assure attainment and maintenance of the 
newly established or revised NAAQS. More specifically, section 
110(a)(1) provides the procedural and timing requirements for 
infrastructure SIPs. Section 110(a)(2) lists specific elements that 
states must meet for the infrastructure SIP requirements related to a 
newly established or revised NAAQS. The contents of an infrastructure 
SIP submission may vary depending upon the data and analytical tools 
available to the state, as well as the provisions already contained in 
the state's implementation plan at the time in which the state develops 
and submits the submission for a new or revised NAAQS.
    Section 110(a)(2)(D) has two components: 110(a)(2)(D)(i) and 
110(a)(2)(D)(ii). Section 110(a)(2)(D)(i) includes four distinct 
components, commonly referred to as ``prongs,'' that must be addressed 
in infrastructure SIP submissions. The first two prongs, which are 
codified in section 110(a)(2)(D)(i)(I), are provisions that prohibit 
any source or other type of emissions activity in one state from 
contributing significantly to nonattainment of the NAAQS in another 
state (prong 1) and from interfering with maintenance of the NAAQS in 
another state (prong 2). The third and fourth prongs, which are 
codified in section 110(a)(2)(D)(i)(II), are provisions that prohibit 
emissions activity in one state from interfering with measures required 
to prevent significant deterioration of air quality in another state 
(prong 3) or from interfering with measures to protect visibility in 
another state (prong 4). Section 110(a)(2)(D)(ii) requires SIPs to 
include provisions ensuring compliance with sections 115 and 126 of the 
Act, relating to interstate and international pollution abatement.
    Through this action, EPA is proposing to conditionally approve the 
prong 4 portions of South Carolina's infrastructure SIP submissions for 
the 2008 8-hour Ozone, 2010 1-hour NO2, 2010 1-hour 
SO2, and 2012 annual PM2.5 NAAQS as discussed in 
section IV of this document.\1\ All other applicable infrastructure SIP 
requirements for these SIP submissions have been or will be addressed 
in separate rulemakings. A brief background regarding the NAAQS 
relevant to this proposal is provided below. For comprehensive 
information on these NAAQS, please refer to the Federal Register 
notices cited in the following subsections.
---------------------------------------------------------------------------

    \1\ Under CAA section 110(k)(4), EPA may conditionally approve a 
SIP revision based on a commitment from a state to adopt specific 
enforceable measures by a date certain, but not later than one year 
from the date of approval. If the state fails to meet the commitment 
within one year of the final conditional approval, the conditional 
approval automatically becomes a disapproval on that date and EPA 
will issue a finding of disapproval.
---------------------------------------------------------------------------

a. 2008 8-Hour Ozone NAAQS

    On March 12, 2008, EPA revised the 8-hour Ozone NAAQS to 0.075 
parts per million. See 73 FR 16436 (March 27, 2008). States were 
required to submit infrastructure SIP submissions for the 2008 8-hour 
Ozone NAAQS to EPA no later than March 12, 2011. South Carolina 
submitted its infrastructure SIP submission on July 17, 2012, for the 
2008 8-hour Ozone NAAQS.

b. 2010 1-Hour NO2 NAAQS

    On January 22, 2010, EPA established a new 1-hour primary NAAQS for 
NO2 at a level of 100 parts per billion, based on a 3-year 
average of the 98th percentile of the yearly distribution of 1-hour 
daily maximum concentrations. See 75 FR 6474 (February 9, 2010). States 
were required to submit infrastructure SIP submissions for the 2010 1-
hour NO2 NAAQS to EPA no later than January 22, 2013. South 
Carolina submitted its infrastructure SIP submission on April 30, 2014, 
for the 2010 1-hour NO2 NAAQS.

c. 2010 1-Hour SO2 NAAQS

    On June 2, 2010, EPA revised the primary SO2 NAAQS to an 
hourly standard of 75 parts per billion based on a 3-year average of 
the annual 99th percentile of 1-hour daily maximum concentrations. See 
75 FR 35520 (June 22, 2010). States were required to submit 
infrastructure SIP submissions for the 2010 1-hour SO2 NAAQS 
to EPA no later than June 2, 2013. South Carolina submitted its 
infrastructure SIP submission on May 8, 2014, for the 2010 1-hour 
SO2 NAAQS.

d. 2012 Annual PM2.5 NAAQS

    On December 14, 2012, EPA revised the primary annual 
PM2.5 NAAQS to 12 micrograms per cubic meter ([mu]g/m\3\). 
See 78 FR 3086 (January 15, 2013). States were required to submit 
infrastructure SIP submissions for the 2012 PM2.5 NAAQS to 
EPA no later than December 14, 2015. South Carolina submitted its 
infrastructure SIP submission on December 18, 2015, for the 2012 
PM2.5 NAAQS.

II. What is EPA's approach to the review of infrastructure SIP 
submissions?

    The requirement for states to make a SIP submission of this type 
arises out of section 110(a)(1). Pursuant to section 110(a)(1), states 
must make SIP submissions ``within 3 years (or such shorter period as 
the Administrator may prescribe) after the promulgation of a national 
primary ambient air quality standard (or any revision thereof),'' and 
these SIP submissions are to provide for the ``implementation, 
maintenance, and enforcement'' of such NAAQS. The statute directly 
imposes on states the duty to make these SIP submissions, and the 
requirement to make the submissions is not conditioned upon EPA's 
taking any action other than promulgating a new or revised NAAQS. 
Section 110(a)(2) includes a list of specific elements that ``each such 
plan'' submission must address.
    EPA has historically referred to these SIP submissions made for the 
purpose of satisfying the requirements of section 110(a)(1) and (2) as 
``infrastructure SIP'' submissions. Although the term ``infrastructure 
SIP'' does not appear in the CAA, EPA uses the term to distinguish this 
particular type of SIP submission from submissions that are intended to 
satisfy other SIP requirements under the CAA, such as ``nonattainment 
SIP'' or ``attainment plan SIP'' submissions to address the 
nonattainment planning requirements of part D of Title I of the CAA, 
``regional haze SIP'' submissions required by EPA rule to address the 
visibility protection requirements of section 169A of the CAA, and 
nonattainment new source review permit program submissions to address 
the permit requirements of CAA, Title I, part D.
    Section 110(a)(1) addresses the timing and general requirements for 
infrastructure SIP submissions and section 110(a)(2) provides more 
details concerning the required contents of these submissions. The list 
of required elements provided in section 110(a)(2) contains a wide 
variety of disparate provisions, some of which pertain to required 
legal authority, some of which pertain to required substantive program 
provisions, and some of which pertain to requirements for both 
authority and substantive program provisions.\2\ EPA therefore believes 
that while the timing requirement in section 110(a)(1) is unambiguous, 
some of the other statutory provisions are ambiguous. In particular, 
EPA believes that the list of required elements for infrastructure SIP 
submissions provided in section

[[Page 36844]]

110(a)(2) contains ambiguities concerning what is required for 
inclusion in an infrastructure SIP submission.
---------------------------------------------------------------------------

    \2\ For example: Section 110(a)(2)(E)(i) provides that states 
must provide assurances that they have adequate legal authority 
under state and local law to carry out the SIP; Section 110(a)(2)(C) 
provides that states must have a SIP-approved program to address 
certain sources as required by part C of Title I of the CAA; and 
section 110(a)(2)(G) provides that states must have legal authority 
to address emergencies as well as contingency plans that are 
triggered in the event of such emergencies.
---------------------------------------------------------------------------

    The following examples of ambiguities illustrate the need for EPA 
to interpret some section 110(a)(1) and section 110(a)(2) requirements 
with respect to infrastructure SIP submissions for a given new or 
revised NAAQS. One example of ambiguity is that section 110(a)(2) 
requires that ``each'' SIP submission must meet the list of 
requirements therein, while EPA has long noted that this literal 
reading of the statute is internally inconsistent and would create a 
conflict with the nonattainment provisions in part D of Title I of the 
CAA, which specifically address nonattainment SIP requirements.\3\ 
Section 110(a)(2)(I) pertains to nonattainment SIP requirements and 
part D addresses when attainment plan SIP submissions to address 
nonattainment area requirements are due. For example, section 172(b) 
requires EPA to establish a schedule for submission of such plans for 
certain pollutants when the Administrator promulgates the designation 
of an area as nonattainment, and section 107(d)(1)(B) allows up to two 
years or in some cases three years, for such designations to be 
promulgated.\4\ This ambiguity illustrates that rather than apply all 
the stated requirements of section 110(a)(2) in a strict literal sense, 
EPA must determine which provisions of section 110(a)(2) are applicable 
for a particular infrastructure SIP submission.
---------------------------------------------------------------------------

    \3\ See, e.g., ``Rule To Reduce Interstate Transport of Fine 
Particulate Matter and Ozone (Clean Air Interstate Rule); Revisions 
to Acid Rain Program; Revisions to the NOX SIP Call; 
Final Rule,'' 70 FR 25162, at 25163-65 (May 12, 2005) (explaining 
relationship between timing requirement of section 110(a)(2)(D) 
versus section 110(a)(2)(I)).
    \4\ EPA notes that this ambiguity within section 110(a)(2) is 
heightened by the fact that various subparts of part D set specific 
dates for submission of certain types of SIP submissions in 
designated nonattainment areas for various pollutants. Note, e.g., 
that section 182(a)(1) provides specific dates for submission of 
emissions inventories for the ozone NAAQS. Some of these specific 
dates are necessarily later than three years after promulgation of 
the new or revised NAAQS.
---------------------------------------------------------------------------

    Another example of ambiguity within section 110(a)(1) and (2) with 
respect to infrastructure SIPs pertains to whether states must meet all 
of the infrastructure SIP requirements in a single SIP submission, and 
whether EPA must act upon such SIP submission in a single action. 
Although section 110(a)(1) directs states to submit ``a plan'' to meet 
these requirements, EPA interprets the CAA to allow states to make 
multiple SIP submissions separately addressing infrastructure SIP 
elements for the same NAAQS. If states elect to make such multiple SIP 
submissions to meet the infrastructure SIP requirements, EPA can elect 
to act on such submissions either individually or in a larger combined 
action.\5\ Similarly, EPA interprets the CAA to allow it to take action 
on the individual parts of one larger, comprehensive infrastructure SIP 
submission for a given NAAQS without concurrent action on the entire 
submission. For example, EPA has sometimes elected to act at different 
times on various elements and sub-elements of the same infrastructure 
SIP submission.\6\
---------------------------------------------------------------------------

    \5\ See, e.g., ``Approval and Promulgation of Implementation 
Plans; New Mexico; Revisions to the New Source Review (NSR) State 
Implementation Plan (SIP); Prevention of Significant Deterioration 
(PSD) and Nonattainment New Source Review (NNSR) Permitting,'' 78 FR 
4339 (January 22, 2013) (EPA's final action approving the structural 
PSD elements of the New Mexico SIP submitted by the State separately 
to meet the requirements of EPA's 2008 PM2.5 NSR rule), 
and ``Approval and Promulgation of Air Quality Implementation Plans; 
New Mexico; Infrastructure and Interstate Transport Requirements for 
the 2006 PM2.5 NAAQS,'' 78 FR 4337 (January 22, 2013) 
(EPA's final action on the infrastructure SIP for the 2006 
PM2.5 NAAQS).
    \6\ On December 14, 2007, the State of Tennessee, through the 
Tennessee Department of Environment and Conservation, made a SIP 
revision to EPA demonstrating that the State meets the requirements 
of sections 110(a)(1) and (2). EPA proposed action for 
infrastructure SIP elements (C) and (J) on January 23, 2012 (77 FR 
3213) and took final action on March 14, 2012 (77 FR 14976). On 
April 16, 2012 (77 FR 22533) and July 23, 2012 (77 FR 42997), EPA 
took separate proposed and final actions on all other section 
110(a)(2) infrastructure SIP elements of Tennessee's December 14, 
2007 submittal.
---------------------------------------------------------------------------

    Ambiguities within section 110(a)(1) and (2) may also arise with 
respect to infrastructure SIP submission requirements for different 
NAAQS. Thus, EPA notes that not every element of section 110(a)(2) 
would be relevant, or as relevant, or relevant in the same way, for 
each new or revised NAAQS. The states' attendant infrastructure SIP 
submissions for each NAAQS therefore could be different. For example, 
the monitoring requirements that a state might need to meet in its 
infrastructure SIP submission for purposes of section 110(a)(2)(B) 
could be very different for different pollutants, because the content 
and scope of a state's infrastructure SIP submission to meet this 
element might be very different for an entirely new NAAQS than for a 
minor revision to an existing NAAQS.\7\
---------------------------------------------------------------------------

    \7\ For example, implementation of the 1997 PM2.5 
NAAQS required the deployment of a system of new monitors to measure 
ambient levels of that new indicator species for the new NAAQS.
---------------------------------------------------------------------------

    EPA notes that interpretation of section 110(a)(2) is also 
necessary when EPA reviews other types of SIP submissions required 
under the CAA. Therefore, as with infrastructure SIP submissions, EPA 
also has to identify and interpret the relevant elements of section 
110(a)(2) that logically apply to these other types of SIP submissions. 
For example, section 172(c)(7) requires attainment plan SIP submissions 
required by part D to meet the ``applicable requirements'' of section 
110(a)(2); thus, attainment plan SIP submissions must meet the 
requirements of section 110(a)(2)(A) regarding enforceable emission 
limits and control measures and section 110(a)(2)(E)(i) regarding air 
agency resources and authority. By contrast, it is clear that 
attainment plan SIP submissions required by part D would not need to 
meet the portion of section 110(a)(2)(C) that pertains to the PSD 
program required in part C of Title I of the CAA, because PSD does not 
apply to a pollutant for which an area is designated nonattainment and 
thus subject to part D planning requirements. As this example 
illustrates, each type of SIP submission may implicate some elements of 
section 110(a)(2) but not others.
    Given the potential for ambiguity in some of the statutory language 
of section 110(a)(1) and section 110(a)(2), EPA believes that it is 
appropriate to interpret the ambiguous portions of section 110(a)(1) 
and section 110(a)(2) in the context of acting on a particular SIP 
submission. In other words, EPA assumes that Congress could not have 
intended that each and every SIP submission, regardless of the NAAQS in 
question or the history of SIP development for the relevant pollutant, 
would meet each of the requirements, or meet each of them in the same 
way. Therefore, EPA has adopted an approach under which it reviews 
infrastructure SIP submissions against the list of elements in section 
110(a)(2), but only to the extent each element applies for that 
particular NAAQS.
    Historically, EPA has elected to use guidance documents to make 
recommendations to states for infrastructure SIPs, in some cases 
conveying needed interpretations on newly arising issues and in some 
cases conveying interpretations that have already been developed and 
applied to individual SIP submissions for particular elements.\8\ EPA 
most recently

[[Page 36845]]

issued guidance for infrastructure SIPs on September 13, 2013 (2013 
Guidance).\9\ EPA developed this document to provide states with up-to-
date guidance for infrastructure SIPs for any new or revised NAAQS. 
Within this guidance, EPA describes the duty of states to make 
infrastructure SIP submissions to meet basic structural SIP 
requirements within three years of promulgation of a new or revised 
NAAQS. EPA also made recommendations about many specific subsections of 
section 110(a)(2) that are relevant in the context of infrastructure 
SIP submissions.\10\ The guidance also discusses the substantively 
important issues that are germane to certain subsections of section 
110(a)(2). EPA interprets section 110(a)(1) and (2) such that 
infrastructure SIP submissions need to address certain issues and need 
not address others. Accordingly, EPA reviews each infrastructure SIP 
submission for compliance with the applicable statutory provisions of 
section 110(a)(2), as appropriate.
---------------------------------------------------------------------------

    \8\ EPA notes, however, that nothing in the CAA requires EPA to 
provide guidance or to promulgate regulations for infrastructure SIP 
submissions. The CAA directly applies to states and requires the 
submission of infrastructure SIP submissions, regardless of whether 
or not EPA provides guidance or regulations pertaining to such 
submissions. EPA elects to issue such guidance in order to assist 
states, as appropriate.
    \9\ ``Guidance on Infrastructure State Implementation Plan (SIP) 
Elements under Clean Air Act Sections 110(a)(1) and 110(a)(2),'' 
Memorandum from Stephen D. Page, September 13, 2013.
    \10\ EPA's September 13, 2013, guidance did not make 
recommendations with respect to infrastructure SIP submissions to 
address section 110(a)(2)(D)(i)(I). EPA issued the guidance shortly 
after the U.S. Supreme Court agreed to review the D.C. Circuit 
decision in EME Homer City, 696 F.3d 7 (D.C. Cir. 2012) which had 
interpreted the requirements of section 110(a)(2)(D)(i)(I). In light 
of the uncertainty created by ongoing litigation, EPA elected not to 
provide additional guidance on the requirements of section 
110(a)(2)(D)(i)(I) at that time. As the guidance is neither binding 
nor required by statute, whether EPA elects to provide guidance on a 
particular section has no impact on a state's CAA obligations.
---------------------------------------------------------------------------

    As an example, section 110(a)(2)(E)(ii) is a required element of 
section 110(a)(2) for infrastructure SIP submissions. Under this 
element, a state must meet the substantive requirements of section 128, 
which pertain to state boards that approve permits or enforcement 
orders and heads of executive agencies with similar powers. Thus, EPA 
reviews infrastructure SIP submissions to ensure that the state's 
implementation plan appropriately addresses the requirements of section 
110(a)(2)(E)(ii) and section 128. The 2013 Guidance explains EPA's 
interpretation that there may be a variety of ways by which states can 
appropriately address these substantive statutory requirements, 
depending on the structure of an individual state's permitting or 
enforcement program (e.g., whether permits and enforcement orders are 
approved by a multi-member board or by a head of an executive agency). 
However they are addressed by the state, the substantive requirements 
of Section 128 are necessarily included in EPA's evaluation of 
infrastructure SIP submissions because section 110(a)(2)(E)(ii) 
explicitly requires that the state satisfy the provisions of section 
128.
    As another example, EPA's review of infrastructure SIP submissions 
with respect to the PSD program requirements in section 110(a)(2)(C), 
(D)(i)(II), and (J) focuses upon the structural PSD program 
requirements contained in part C and EPA's PSD regulations. Structural 
PSD program requirements include provisions necessary for the PSD 
program to address all regulated sources and NSR pollutants, including 
Greenhouse Gases. By contrast, structural PSD program requirements do 
not include provisions that are not required under EPA's regulations at 
40 CFR 51.166 but are merely available as an option for the state, such 
as the option to provide grandfathering of complete permit applications 
with respect to the PM2.5 NAAQS. Accordingly, the latter 
optional provisions are types of provisions EPA considers irrelevant in 
the context of an infrastructure SIP action.
    For other section 110(a)(2) elements, however, EPA's review of a 
state's infrastructure SIP submission focuses on assuring that the 
state's implementation plan meets basic structural requirements. For 
example, section 110(a)(2)(C) includes, inter alia, the requirement 
that states have a program to regulate minor new sources. Thus, EPA 
evaluates whether the state has an EPA-approved minor new source review 
program and whether the program addresses the pollutants relevant to 
that NAAQS. In the context of acting on an infrastructure SIP 
submission, however, EPA does not think it is necessary to conduct a 
review of each and every provision of a state's existing minor source 
program (i.e., already in the existing SIP) for compliance with the 
requirements of the CAA and EPA's regulations that pertain to such 
programs.
    With respect to certain other issues, EPA does not believe that an 
action on a state's infrastructure SIP submission is necessarily the 
appropriate type of action in which to address possible deficiencies in 
a state's existing SIP. These issues include: (i) Existing provisions 
related to excess emissions from sources during periods of startup, 
shutdown, or malfunction (SSM) that may be contrary to the CAA and 
EPA's policies addressing such excess emissions; \11\ (ii) existing 
provisions related to ``director's variance'' or ``director's 
discretion'' that may be contrary to the CAA because they purport to 
allow revisions to SIP-approved emissions limits while limiting public 
process or not requiring further approval by EPA; and (iii) existing 
provisions for PSD programs that may be inconsistent with current 
requirements of EPA's ``Final NSR Improvement Rule,'' 67 FR 80186 
(December 31, 2002), as amended by 72 FR 32526 (June 13, 2007) (NSR 
Reform). Thus, EPA believes that it may approve an infrastructure SIP 
submission without scrutinizing the totality of the existing SIP for 
such potentially deficient provisions and may approve the submission 
even if it is aware of such existing provisions.\12\ It is important to 
note that EPA's approval of a state's infrastructure SIP submission 
should not be construed as explicit or implicit re-approval of any 
existing potentially deficient provisions that relate to the three 
specific issues just described.
---------------------------------------------------------------------------

    \11\ Subsequent to issuing the 2013 Guidance, EPA's 
interpretation of the CAA with respect to the approvability of 
affirmative defense provisions in SIPs has changed. See ``State 
Implementation Plans: Response to Petition for Rulemaking; 
Restatement and Update of EPA's SSM Policy Applicable to SIPs; 
Findings of Substantial Inadequacy; and SIP Calls To Amend 
Provisions Applying to Excess Emissions During Periods of Startup, 
Shutdown and Malfunction,'' 80 FR 33839 (June 12, 2015). As a 
result, EPA's 2013 Guidance (p. 21 & n.30) no longer represents the 
EPA's view concerning the validity of affirmative defense 
provisions, in light of the requirements of section 113 and section 
304.
    \12\ By contrast, EPA notes that if a state were to include a 
new provision in an infrastructure SIP submission that contained a 
legal deficiency, such as a new exemption or affirmative defense for 
excess emissions during SSM events, then EPA would need to evaluate 
that provision for compliance against the rubric of applicable CAA 
requirements in the context of the action on the infrastructure SIP.
---------------------------------------------------------------------------

    EPA's approach to review of infrastructure SIP submissions is to 
identify the CAA requirements that are logically applicable to that 
submission. EPA believes that this approach to the review of a 
particular infrastructure SIP submission is appropriate, because it 
would not be reasonable to read the general requirements of section 
110(a)(1) and the list of elements in section 110(a)(2) as requiring 
review of each and every provision of a state's existing SIP against 
all requirements in the CAA and EPA regulations merely for purposes of 
assuring that the state in question has the basic structural elements 
for a functioning SIP for a new or revised NAAQS. Because SIPs have 
grown by accretion over the decades as statutory and regulatory 
requirements under the CAA have evolved, they may

[[Page 36846]]

include some outmoded provisions and historical artifacts. These 
provisions, while not fully up to date, nevertheless may not pose a 
significant problem for the purposes of ``implementation, maintenance, 
and enforcement'' of a new or revised NAAQS when EPA evaluates adequacy 
of the infrastructure SIP submission. EPA believes that a better 
approach is for states and EPA to focus attention on those elements of 
section 110(a)(2) of the CAA most likely to warrant a specific SIP 
revision due to the promulgation of a new or revised NAAQS or other 
factors.
    For example, EPA's 2013 Guidance gives simpler recommendations with 
respect to carbon monoxide than other NAAQS pollutants to meet the 
visibility requirements of section 110(a)(2)(D)(i)(II), because carbon 
monoxide does not affect visibility. As a result, an infrastructure SIP 
submission for any future new or revised NAAQS for carbon monoxide need 
only state this fact in order to address the visibility prong of 
section 110(a)(2)(D)(i)(II).
    Finally, EPA believes that its approach with respect to 
infrastructure SIP requirements is based on a reasonable reading of 
section 110(a)(1) and (2) because the CAA provides other avenues and 
mechanisms to address specific substantive deficiencies in existing 
SIPs. These other statutory tools allow EPA to take appropriately 
tailored action, depending upon the nature and severity of the alleged 
SIP deficiency. Section 110(k)(5) authorizes EPA to issue a ``SIP 
call'' whenever the Agency determines that a state's SIP is 
substantially inadequate to attain or maintain the NAAQS, to mitigate 
interstate transport, or to otherwise comply with the CAA.\13\ Section 
110(k)(6) authorizes EPA to correct errors in past actions, such as 
past approvals of SIP submissions.\14\ Significantly, EPA's 
determination that an action on a state's infrastructure SIP submission 
is not the appropriate time and place to address all potential existing 
SIP deficiencies does not preclude EPA's subsequent reliance on 
provisions in section 110(a)(2) as part of the basis for action to 
correct those deficiencies at a later time. For example, although it 
may not be appropriate to require a state to eliminate all existing 
inappropriate director's discretion provisions in the course of acting 
on an infrastructure SIP submission, EPA believes that section 
110(a)(2)(A) may be among the statutory bases that EPA relies upon in 
the course of addressing such deficiency in a subsequent action.\15\
---------------------------------------------------------------------------

    \13\ For example, EPA issued a SIP call to Utah to address 
specific existing SIP deficiencies related to the treatment of 
excess emissions during SSM events. See ``Finding of Substantial 
Inadequacy of Implementation Plan; Call for Utah State 
Implementation Plan Revisions,'' 74 FR 21639 (April 18, 2011).
    \14\ EPA has used this authority to correct errors in past 
actions on SIP submissions related to PSD programs. See ``Limitation 
of Approval of Prevention of Significant Deterioration Provisions 
Concerning Greenhouse Gas Emitting-Sources in State Implementation 
Plans; Final Rule,'' 75 FR 82536 (December 30, 2010). EPA has 
previously used its authority under section 110(k)(6) of the CAA to 
remove numerous other SIP provisions that the Agency determined it 
had approved in error. See, e.g., 61 FR 38664 (July 25, 1996) and 62 
FR 34641 (June 27, 1997) (corrections to American Samoa, Arizona, 
California, Hawaii, and Nevada SIPs); 69 FR 67062, November 16, 2004 
(corrections to California SIP); and 74 FR 57051 (November 3, 2009) 
(corrections to Arizona and Nevada SIPs).
    \15\ See, e.g., EPA's disapproval of a SIP submission from 
Colorado on the grounds that it would have included a director's 
discretion provision inconsistent with CAA requirements, including 
section 110(a)(2)(A). See, e.g., 75 FR 42342 at 42344 (July 21, 
2010) (proposed disapproval of director's discretion provisions); 76 
FR 4540 (January 26, 2011) (final disapproval of such provisions).
---------------------------------------------------------------------------

III. What are the Prong 4 requirements?

    Section 110(a)(2)(D)(i)(II) includes a requirement that a state's 
implementation plan contain provisions prohibiting sources in that 
state from emitting pollutants in amounts that interfere with any other 
state's efforts to protect visibility under part C of Title I of the 
CAA (which includes sections 169A and 169B). The 2013 Guidance states 
that these prong 4 requirements can be satisfied by approved SIP 
provisions that EPA has found to adequately address any contribution of 
that state's sources to impacts on visibility program requirements in 
other states. The 2013 Guidance also states that EPA interprets this 
prong to be pollutant-specific, such that the infrastructure SIP 
submission need only address the potential for interference with 
protection of visibility caused by the pollutant (including precursors) 
to which the new or revised NAAQS applies.
    The 2013 Guidance delineates two ways in which a state's 
infrastructure SIP may satisfy prong 4. The first way is through an air 
agency's confirmation in its infrastructure SIP submission that it has 
an EPA-approved regional haze SIP that fully meets the requirements of 
40 CFR 51.308 or 51.309. 40 CFR 51.308 and 51.309 specifically require 
that a state participating in a regional planning process include all 
measures needed to achieve its apportionment of emission reduction 
obligations agreed upon through that process. A fully approved regional 
haze SIP will ensure that emissions from sources under an air agency's 
jurisdiction are not interfering with measures required to be included 
in other air agencies' plans to protect visibility.
    Alternatively, in the absence of a fully approved regional haze 
SIP, a state may meet the requirements of prong 4 through a 
demonstration in its infrastructure SIP submission that emissions 
within its jurisdiction do not interfere with other air agencies' plans 
to protect visibility. Such an infrastructure SIP submission would need 
to include measures to limit visibility-impairing pollutants and ensure 
that the reductions conform with any mutually agreed regional haze 
reasonable progress goals for mandatory Class I areas in other states.

IV. What is EPA's analysis of how South Carolina addressed Prong 4?

    South Carolina's July 17, 2012, 2008 8-hour Ozone submission; April 
30, 2014, 2010 1-hour NO2 submission; May 8, 2014, 2010 1-
hour SO2 submission; and December 18, 2015, 2012 annual 
PM2.5 submission cite to the State's regional haze SIP as 
satisfying prong 4 requirements.\16\ However, as explained below, EPA 
has not yet fully approved South Carolina's regional haze SIP because 
the SIP relies on the Clean Air Interstate Rule (CAIR) to satisfy the 
nitrogen oxides (NOX) and SO2 Best Available 
Retrofit Technology (BART) requirements for the CAIR-subject electric 
generating units (EGUs) in the State and the requirement for a long-
term strategy sufficient to achieve the state-adopted reasonable 
progress goals.\17\
---------------------------------------------------------------------------

    \16\ The April 30, 2014, 2010 1-hour NO2 submission; 
May 8, 2014, 2010 1-hour SO2 submission; and December 18, 
2015 also cite to the State's December 2012 regional haze progress 
report.
    \17\ CAIR, promulgated in 2005, required 27 states and the 
District of Columbia to reduce emissions of NOX and 
SO2 that significantly contribute to, or interfere with 
maintenance of, the 1997 NAAQS for fine particulates and/or ozone in 
any downwind state. CAIR imposed specified emissions reduction 
requirements on each affected State, and established several EPA-
administered cap and trade programs for EGUs that States could join 
as a means to meet these requirements.
---------------------------------------------------------------------------

    EPA demonstrated that CAIR achieved greater reasonable progress 
toward the national visibility goal than BART for NOX and 
SO2 at BART-eligible EGUs in CAIR affected states, and 
revised the regional haze rule to provide that states participating in 
CAIR's cap-and-trade programs need not require affected BART-eligible 
EGUs to install, operate, and maintain BART for emissions of 
SO2 and NOX. See 70 FR 39104 (July 6, 2005). As a 
result, a number of states in the CAIR region designed their regional 
haze SIPs to rely

[[Page 36847]]

on CAIR as an alternative to NOX and SO2 BART for 
CAIR-subject EGUs. These states also relied on CAIR as an element of a 
long-term strategy for achieving their reasonable progress goals.
    The United States Court of Appeals for the District of Columbia 
Circuit (D.C. Circuit) initially vacated CAIR in 2008,\18\ but 
ultimately remanded the rule to EPA without vacatur to preserve the 
environmental benefits provided by CAIR.\19\ On August 8, 2011 (76 FR 
48208), acting on the D.C. Circuit's remand, EPA promulgated the Cross-
State Air Pollution Rule (CSAPR) to replace CAIR and thus to address 
the interstate transport of emissions contributing to nonattainment and 
interfering with maintenance of the two air quality standards covered 
by CAIR as well as the 2006 PM2.5 NAAQS.
---------------------------------------------------------------------------

    \18\ North Carolina v. EPA, 531 F.3d 896 (D.C. Cir. 2008).
    \19\ North Carolina v. EPA, 550 F.3d 1176 (D.C. Cir. 2008).
---------------------------------------------------------------------------

    Due to CAIR's status as a temporary measure following the D.C. 
Circuit's 2008 ruling, EPA could not fully approve regional haze SIP 
revisions to the extent that they relied on CAIR to satisfy the BART 
requirement and the requirement for a long-term strategy sufficient to 
achieve the state-adopted reasonable progress goals. On these grounds, 
EPA finalized a limited disapproval of South Carolina's regional haze 
SIP on June 7, 2012 (77 FR 33642), triggering the requirement for EPA 
to promulgate a Federal Implementation Plan (FIP) unless South Carolina 
submitted and EPA approved a SIP revision that corrected the 
deficiencies. EPA finalized a limited approval of South Carolina's 
regional haze SIP on June 28, 2012 (77 FR 38509), as meeting the 
remaining applicable regional haze requirements set forth in the CAA 
and the regional haze rule.
    Numerous parties filed petitions for review of CSAPR in the D.C. 
Circuit, and on August 21, 2012, the court issued its ruling, vacating 
and remanding CSAPR to EPA and ordering continued implementation of 
CAIR. EME Homer City Generation, L.P. v. EPA, 696 F.3d 7, 38 (D.C. Cir. 
2012). The D.C. Circuit's vacatur of CSAPR was reversed by the United 
States Supreme Court on April 29, 2014, and the case was remanded to 
the D.C. Circuit to resolve remaining issues in accordance with the 
high court's ruling. EPA v. EME Homer City Generation, L.P., 134 S. Ct. 
1584 (2014). On remand, the D.C. Circuit affirmed CSAPR in most 
respects, but invalidated without vacating some of the CSAPR budgets as 
to a number of states. EME Homer City Generation, L.P. v. EPA, 795 F.3d 
118 (D.C. Cir. 2015). The remanded budgets include the Phase 2 
SO2 emissions budget for South Carolina.\20\
---------------------------------------------------------------------------

    \20\ The D.C. Circuit also invalidated the Phase 2 ozone season 
NOX budget for South Carolina. EPA has proposed to 
address the court's remand of the Phase 2 ozone season 
NOX budgets in a notice of proposed rulemaking published 
on December 3, 2015 (80 FR 75706).
---------------------------------------------------------------------------

    Although South Carolina's infrastructure SIP revisions cite to the 
regional haze program as satisfying the requirements of Prong 4, the 
State may not currently rely on its regional haze SIP to satisfy these 
requirements because the regional haze SIP is not fully approved. In 
addition, these revisions do not otherwise demonstrate that emissions 
within the State's jurisdiction do not interfere with other states' 
plans to protect visibility. Therefore, on April 19, 2016, South 
Carolina submitted a commitment letter to EPA requesting conditional 
approval of the prong 4 portions of the aforementioned infrastructure 
SIP revisions.\21\ In this letter, South Carolina commits to satisfy 
the prong 4 requirements for the 2008 8-hour ozone NAAQS, 2010 1-hour 
NO2 NAAQS, 2010 1-hour SO2 NAAQS, and 2012 
PM2.5 NAAQS by providing a SIP revision that adopts 
provisions for participation in the CSAPR annual NOX and 
annual SO2 trading programs, including annual NOX 
and annual SO2 budgets that are at least as stringent as the 
budgets codified for South Carolina at 40 CFR 97.710(a) (SO2 
Group 2 trading budgets) and 40 CFR 97.410(a) (NOX Annual 
trading budgets). South Carolina will rely on this SIP revision 
adopting such budgets to submit a concurrent SIP revision specifically 
addressing the visibility requirements of prong 4. In its commitment 
letter, South Carolina commits to providing these two concurrent SIP 
revisions within one year of EPA's final conditional approval of the 
prong 4 portions of the infrastructure SIP revisions and provides an 
anticipated schedule for these revisions. If the revised infrastructure 
SIP revision relies on a fully approvable regional haze SIP, South 
Carolina also commits to providing the necessary regional haze SIP 
revision to EPA within one year of EPA's final conditional approval.
---------------------------------------------------------------------------

    \21\ South Carolina's April 19, 2016, commitment letter is 
available in the docket for today's proposed action.
---------------------------------------------------------------------------

    If South Carolina meets its commitment within one year of final 
conditional approval, the prong 4 portions of the conditionally 
approved infrastructure SIP submissions will remain a part of the SIP 
until EPA takes final action approving or disapproving the new SIP 
revision(s). However, if the State fails to submit these revisions 
within the one-year timeframe, the conditional approval will 
automatically become a disapproval one year from EPA's final 
conditional approval and EPA will issue a finding of disapproval. EPA 
is not required to propose the finding of disapproval. If the 
conditional approval is converted to a disapproval, the final 
disapproval triggers the FIP requirement under CAA section 110(c).

V. Proposed Action

    As described above, EPA is proposing to conditionally approve the 
prong 4 portions of South Carolina's July 17, 2008 8-hour Ozone 
infrastructure SIP submission; April 30, 2014, 2010 1-hour 
NO2 infrastructure SIP submission; May 8, 2014, 2010 1-hour 
SO2 infrastructure SIP submission; and December 18, 2015, 
2012 annual PM2.5 infrastructure SIP submission. All other 
applicable infrastructure requirements for these SIP submissions have 
been or will be addressed in separate rulemakings.

VI. Statutory and Executive Order Reviews

    Under the CAA, the Administrator is required to approve a SIP 
submission that complies with the provisions of the Act and applicable 
federal regulations. See 42 U.S.C. 7410(k); 40 CFR 52.02(a). Thus, in 
reviewing SIP submissions, EPA's role is to approve state choices, 
provided that they meet the criteria of the CAA. Accordingly, this 
proposed action merely approves state law as meeting federal 
requirements and does not impose additional requirements beyond those 
imposed by state law. For that reason, this proposed action:
     Is not a ``significant regulatory action'' subject to 
review by the Office of Management and Budget under Executive Orders 
12866 (58 FR 51735, October 4, 1993) and 13563 (76 FR 3821, January 21, 
2011);
     does not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
     is certified as not having a significant economic impact 
on a substantial number of small entities under the Regulatory 
Flexibility Act (5 U.S.C. 601 et seq.);
     does not contain any unfunded mandate or significantly or 
uniquely affect small governments, as described in the Unfunded 
Mandates Reform Act of 1995 (Pub. L. 104-4);
     does not have Federalism implications as specified in 
Executive

[[Page 36848]]

Order 13132 (64 FR 43255, August 10, 1999);
     is not an economically significant regulatory action based 
on health or safety risks subject to Executive Order 13045 (62 FR 
19885, April 23, 1997);
     is not a significant regulatory action subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001);
     is not subject to requirements of Section 12(d) of the 
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 
note) because application of those requirements would be inconsistent 
with the CAA; and
     does not provide EPA with the discretionary authority to 
address, as appropriate, disproportionate human health or environmental 
effects, using practicable and legally permissible methods, under 
Executive Order 12898 (59 FR 7629, February 16, 1994).
    In addition, this proposed action for the state of South Carolina 
does not have Tribal implications as specified by Executive Order 13175 
(65 FR 67249, November 9, 2000). The Catawba Indian Nation Reservation 
is located within the State of South Carolina. Pursuant to the Catawba 
Indian Claims Settlement Act, South Carolina statute 27-16-120, ``all 
state and local environmental laws and regulations apply to the 
[Catawba Indian Nation] and Reservation and are fully enforceable by 
all relevant state and local agencies and authorities.'' However, EPA 
has determined that because this proposed rule does not have 
substantial direct effects on an Indian Tribe because, as noted above, 
this action is not approving any specific rule, but rather proposing 
that South Carolina's already approved SIP meets certain CAA 
requirements. EPA notes this action will not impose substantial direct 
costs on Tribal governments or preempt Tribal law.

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Incorporation by 
reference, Intergovernmental relations, Nitrogen dioxide, Ozone, 
Particulate matter, Reporting and recordkeeping requirements, Volatile 
organic compounds.

    Authority:  42 U.S.C. 7401 et seq.

    Dated: May 26, 2016.
Heather McTeer Toney,
Regional Administrator, Region 4.
[FR Doc. 2016-13606 Filed 6-7-16; 8:45 am]
 BILLING CODE 6560-50-P



                                               36842                  Federal Register / Vol. 81, No. 110 / Wednesday, June 8, 2016 / Proposed Rules

                                               adjacent islets and rocks not connected                 to the place of the beginning (Approx.                 2012 annual PM2.5 infrastructure SIP
                                               to the main shore and not covered at                    Long. 131°11′00″ W. Lat. 55°05′55″ N.).                submission. All other applicable
                                               low water (Approx. Long. 132°12′ W.                        (Y) Tree Point starts a point of a low-             infrastructure requirements for these SIP
                                               Lat. 55°36′ N.).                                        water mark. The aforementioned point                   submissions have been or will be
                                                  (S) Spire Island Reef and                            is southerly 1⁄2 mile from extreme                     addressed in separate rulemakings.
                                               Revillagigedo Channel are shown on the                  westerly point of a low-water mark on                  DATES: Comments must be received on
                                               U.S. Coast and Geodetic Survey Chart                    Tree Point, on the Alaska Mainland;                    or before July 8, 2016.
                                               No. 8075—Sheet No. 3. The reference                     thence due true east, 3⁄4 mile; thence                 ADDRESSES: Submit your comments,
                                               location is marked as 76 south, 92 east,                due north 1 mile; thence due west to a                 identified by Docket ID No EPA–R04–
                                               CRM, SEC 19.The detached reef,                          low-water mark; thence following the                   OAR–2016–0247 at http://
                                               covered at high water and partly bare at                winding of the low-water mark to the                   www.regulations.gov. Follow the online
                                               low water, is located northeast of Spire                place of the beginning (Approx. Long.                  instructions for submitting comments.
                                               Island. Spire Island Light is located on                130°57′44″ W. Lat. 54°48′27″ N.).                      Once submitted, comments cannot be
                                               the reef and consists of small houses                   *      *    *     *     *                              edited or removed from Regulations.gov.
                                               and lanterns surmounting a concrete                       Dated: May 31, 2016.                                 EPA may publish any comment received
                                               pier. See chart for ‘‘Angle Pt.’’ (Approx.                Dated: February 17, 2016.                            to its public docket. Do not submit
                                               Long. 131°30′ W. Lat. 55°16′ N.).                                                                              electronically any information you
                                                                                                       Sally Jewell,
                                                  (T) Surprise Point and Nakat Inlet are                                                                      consider to be Confidential Business
                                                                                                       Secretary of the Interior.
                                               shown on the U.S. Coast and Geodetic                                                                           Information (CBI) or other information
                                               Survey Chart No. 8051—Sheet No. 1.                      Beth G. Pendleton,
                                                                                                                                                              whose disclosure is restricted by statute.
                                               The reference location is marked as 80                  Regional Forester USDA—Forest Service.                 Multimedia submissions (audio, video,
                                               south, 89 east, CRM. This point lies                    [FR Doc. 2016–13374 Filed 6–7–16; 8:45 am]             etc.) must be accompanied by a written
                                               north of a true east-and-west line. The                 BILLING CODE 3410–11–4333–15–P                         comment. The written comment is
                                               true east-and-west line lies 3,040 feet                                                                        considered the official comment and
                                               true south from the northernmost                                                                               should include discussion of all points
                                               extremity of the point together with                    ENVIRONMENTAL PROTECTION                               you wish to make. EPA will generally
                                               adjacent rocks and islets (Approx. Long.                AGENCY                                                 not consider comments or comment
                                               130°44′ W. Lat. 54°49′ N.).                                                                                    contents located outside of the primary
                                                  (U) Caamano Point, Cleveland                         40 CFR Part 52                                         submission (i.e. on the web, cloud, or
                                               Peninsula, and Clarence Strait, Alaska,                 [EPA–R04–OAR–2016–0247; FRL–9947–40–                   other file sharing system). For
                                               are shown on the U.S. Coast and                         Region 4]                                              additional submission methods, the full
                                               Geodetic Survey Chart No. 8102—Sheet                                                                           EPA public comment policy,
                                               No. 6. Location consists of everything                  Air Plan Approval; South Carolina;                     information about CBI or multimedia
                                               apart of the extreme south end of the                   Prong 4—2008 Ozone, 2010 NO2, SO2,                     submissions, and general guidance on
                                               Cleveland Peninsula lying on a south                    and 2012 PM2.5                                         making effective comments, please visit
                                               side of a true east-and-west line that is               AGENCY:  Environmental Protection                      http://www2.epa.gov/dockets/
                                               drawn across the point at a distance of                 Agency.                                                commenting-epa-dockets.
                                               800 feet true north from the                                                                                   FOR FURTHER INFORMATION CONTACT:
                                                                                                       ACTION: Proposed rule.
                                               southernmost point of the low-water                                                                            Sean Lakeman of the Air Regulatory
                                               line. This includes off-lying rocks and                 SUMMARY:   The Environmental Protection                Management Section, Air Planning and
                                               islets that are not covered at low water                Agency (EPA) is proposing to                           Implementation Branch, Air, Pesticides
                                               (Approx. Long. 131°59′ W. Lat. 55°30′                   conditionally approve the portions of                  and Toxics Management Division, U.S.
                                               N.).                                                    revisions to the South Carolina State                  Environmental Protection Agency,
                                                  (V) Meyers Chuck and Clarence Strait,                Implementation Plan (SIP), submitted                   Region 4, 61 Forsyth Street SW.,
                                               Alaska, are shown on the U.S. and                       by the South Carolina Department of                    Atlanta, Georgia 30303–8960. Mr.
                                               Geodetic Survey Chart No. 8124—Sheet                    Health and Environmental Control (SC                   Lakeman can be reached by telephone at
                                               No. 26. The small island is about 150                   DHEC), addressing the Clean Air Act                    (404) 562–9043 or via electronic mail at
                                               yards in diameter and located about 200                 (CAA or Act) visibility transport (prong               lakeman.sean@epa.gov.
                                               yards northwest of Meyers Island                        4) infrastructure SIP requirements for                 SUPPLEMENTARY INFORMATION:
                                               (Approx. Long. 132°16′ W. Lat. 55°441⁄2′                the 2008 8-hour Ozone, 2010 1-hour
                                               N.).                                                    Nitrogen Dioxide (NO2), 2010 1-hour                    I. Background
                                                  (W) Round Island and Cordova Bay,                    Sulfur Dioxide (SO2), and 2012 annual                     By statute, SIPs meeting the
                                               Alaska, are shown on the U.S coast and                  Fine Particulate Matter (PM2.5) National               requirements of sections 110(a)(1) and
                                               Geodetic Survey Chart No. 8145—Sheet                    Ambient Air Quality Standards                          (2) of the CAA are to be submitted by
                                               No. 36. The Southwestern Island of the                  (NAAQS). The CAA requires that each                    states within three years after
                                               group is about 700 yards long, including                state adopt and submit a SIP for the                   promulgation of a new or revised
                                               off-lying rocks and reefs that are not                  implementation, maintenance, and                       NAAQS to provide for the
                                               covered at low water (Approx. Long.                     enforcement of each NAAQS                              implementation, maintenance, and
                                               132°301⁄2′ W. Lat. 54°461⁄2′ N.).                       promulgated by EPA, commonly                           enforcement of the new or revised
                                                  (X) Mary Island begins at a point that               referred to as an ‘‘infrastructure SIP.’’              NAAQS. EPA has historically referred to
                                               is placed at a low-water mark. The                      Specifically, EPA is proposing to                      these SIP submissions made for the
ehiers on DSK5VPTVN1PROD with PROPOSALS




                                               aforementioned point is southward 500                   conditionally approve the prong 4                      purpose of satisfying the requirements
                                               feet from a crosscut on the side of a                   portions of South Carolina’s July 17,                  of sections 110(a)(1) and 110(a)(2) as
                                               large rock on the second point below                    2008, 8-hour Ozone infrastructure SIP                  ‘‘infrastructure SIP’’ submissions.
                                               Point Winslow and Mary Island; thence                   submission; April 30, 2014, 2010 1-hour                Sections 110(a)(1) and (2) require states
                                               due west 3⁄4 mile, statute; thence due                  NO2 infrastructure SIP submission; May                 to address basic SIP elements such as
                                               north to a low-water mark; thence                       8, 2014, 2010 1-hour SO2 infrastructure                the requirements for monitoring, basic
                                               following the winding of the low water                  SIP submission; and December 18, 2015,                 program requirements, and legal


                                          VerDate Sep<11>2014   14:36 Jun 07, 2016   Jkt 238001   PO 00000   Frm 00033   Fmt 4702   Sfmt 4702   E:\FR\FM\08JNP1.SGM   08JNP1


                                                                       Federal Register / Vol. 81, No. 110 / Wednesday, June 8, 2016 / Proposed Rules                                                    36843

                                               authority that are designed to assure                   relevant to this proposal is provided                  submissions ‘‘within 3 years (or such
                                               attainment and maintenance of the                       below. For comprehensive information                   shorter period as the Administrator may
                                               newly established or revised NAAQS.                     on these NAAQS, please refer to the                    prescribe) after the promulgation of a
                                               More specifically, section 110(a)(1)                    Federal Register notices cited in the                  national primary ambient air quality
                                               provides the procedural and timing                      following subsections.                                 standard (or any revision thereof),’’ and
                                               requirements for infrastructure SIPs.                                                                          these SIP submissions are to provide for
                                                                                                       a. 2008 8-Hour Ozone NAAQS                             the ‘‘implementation, maintenance, and
                                               Section 110(a)(2) lists specific elements
                                               that states must meet for the                              On March 12, 2008, EPA revised the                  enforcement’’ of such NAAQS. The
                                               infrastructure SIP requirements related                 8-hour Ozone NAAQS to 0.075 parts per                  statute directly imposes on states the
                                               to a newly established or revised                       million. See 73 FR 16436 (March 27,                    duty to make these SIP submissions,
                                               NAAQS. The contents of an                               2008). States were required to submit                  and the requirement to make the
                                               infrastructure SIP submission may vary                  infrastructure SIP submissions for the                 submissions is not conditioned upon
                                               depending upon the data and analytical                  2008 8-hour Ozone NAAQS to EPA no                      EPA’s taking any action other than
                                               tools available to the state, as well as the            later than March 12, 2011. South                       promulgating a new or revised NAAQS.
                                               provisions already contained in the                     Carolina submitted its infrastructure SIP              Section 110(a)(2) includes a list of
                                               state’s implementation plan at the time                 submission on July 17, 2012, for the                   specific elements that ‘‘each such plan’’
                                               in which the state develops and submits                 2008 8-hour Ozone NAAQS.                               submission must address.
                                               the submission for a new or revised                                                                               EPA has historically referred to these
                                                                                                       b. 2010 1-Hour NO2 NAAQS                               SIP submissions made for the purpose
                                               NAAQS.
                                                  Section 110(a)(2)(D) has two                            On January 22, 2010, EPA established                of satisfying the requirements of section
                                               components: 110(a)(2)(D)(i) and                         a new 1-hour primary NAAQS for NO2                     110(a)(1) and (2) as ‘‘infrastructure SIP’’
                                               110(a)(2)(D)(ii). Section 110(a)(2)(D)(i)               at a level of 100 parts per billion, based             submissions. Although the term
                                               includes four distinct components,                      on a 3-year average of the 98th                        ‘‘infrastructure SIP’’ does not appear in
                                               commonly referred to as ‘‘prongs,’’ that                percentile of the yearly distribution of 1-            the CAA, EPA uses the term to
                                               must be addressed in infrastructure SIP                 hour daily maximum concentrations.                     distinguish this particular type of SIP
                                               submissions. The first two prongs,                      See 75 FR 6474 (February 9, 2010).                     submission from submissions that are
                                               which are codified in section                           States were required to submit                         intended to satisfy other SIP
                                               110(a)(2)(D)(i)(I), are provisions that                 infrastructure SIP submissions for the                 requirements under the CAA, such as
                                               prohibit any source or other type of                    2010 1-hour NO2 NAAQS to EPA no                        ‘‘nonattainment SIP’’ or ‘‘attainment
                                               emissions activity in one state from                    later than January 22, 2013. South                     plan SIP’’ submissions to address the
                                               contributing significantly to                           Carolina submitted its infrastructure SIP              nonattainment planning requirements of
                                               nonattainment of the NAAQS in another                   submission on April 30, 2014, for the                  part D of Title I of the CAA, ‘‘regional
                                               state (prong 1) and from interfering with               2010 1-hour NO2 NAAQS.                                 haze SIP’’ submissions required by EPA
                                               maintenance of the NAAQS in another                                                                            rule to address the visibility protection
                                                                                                       c. 2010 1-Hour SO2 NAAQS                               requirements of section 169A of the
                                               state (prong 2). The third and fourth
                                               prongs, which are codified in section                      On June 2, 2010, EPA revised the                    CAA, and nonattainment new source
                                               110(a)(2)(D)(i)(II), are provisions that                primary SO2 NAAQS to an hourly                         review permit program submissions to
                                               prohibit emissions activity in one state                standard of 75 parts per billion based on              address the permit requirements of
                                               from interfering with measures required                 a 3-year average of the annual 99th                    CAA, Title I, part D.
                                               to prevent significant deterioration of air             percentile of 1-hour daily maximum                        Section 110(a)(1) addresses the timing
                                                                                                       concentrations. See 75 FR 35520 (June                  and general requirements for
                                               quality in another state (prong 3) or
                                                                                                       22, 2010). States were required to                     infrastructure SIP submissions and
                                               from interfering with measures to
                                                                                                       submit infrastructure SIP submissions                  section 110(a)(2) provides more details
                                               protect visibility in another state (prong
                                                                                                       for the 2010 1-hour SO2 NAAQS to EPA                   concerning the required contents of
                                               4). Section 110(a)(2)(D)(ii) requires SIPs
                                                                                                       no later than June 2, 2013. South                      these submissions. The list of required
                                               to include provisions ensuring
                                                                                                       Carolina submitted its infrastructure SIP              elements provided in section 110(a)(2)
                                               compliance with sections 115 and 126
                                                                                                       submission on May 8, 2014, for the 2010                contains a wide variety of disparate
                                               of the Act, relating to interstate and
                                                                                                       1-hour SO2 NAAQS.                                      provisions, some of which pertain to
                                               international pollution abatement.
                                                                                                                                                              required legal authority, some of which
                                                  Through this action, EPA is proposing                d. 2012 Annual PM2.5 NAAQS                             pertain to required substantive program
                                               to conditionally approve the prong 4
                                                                                                         On December 14, 2012, EPA revised                    provisions, and some of which pertain
                                               portions of South Carolina’s
                                                                                                       the primary annual PM2.5 NAAQS to 12                   to requirements for both authority and
                                               infrastructure SIP submissions for the
                                                                                                       micrograms per cubic meter (mg/m3).                    substantive program provisions.2 EPA
                                               2008 8-hour Ozone, 2010 1-hour NO2,
                                                                                                       See 78 FR 3086 (January 15, 2013).                     therefore believes that while the timing
                                               2010 1-hour SO2, and 2012 annual PM2.5
                                                                                                       States were required to submit                         requirement in section 110(a)(1) is
                                               NAAQS as discussed in section IV of
                                                                                                       infrastructure SIP submissions for the                 unambiguous, some of the other
                                               this document.1 All other applicable
                                                                                                       2012 PM2.5 NAAQS to EPA no later than                  statutory provisions are ambiguous. In
                                               infrastructure SIP requirements for these                                                                      particular, EPA believes that the list of
                                                                                                       December 14, 2015. South Carolina
                                               SIP submissions have been or will be                                                                           required elements for infrastructure SIP
                                                                                                       submitted its infrastructure SIP
                                               addressed in separate rulemakings. A                                                                           submissions provided in section
                                                                                                       submission on December 18, 2015, for
                                               brief background regarding the NAAQS
                                                                                                       the 2012 PM2.5 NAAQS.
ehiers on DSK5VPTVN1PROD with PROPOSALS




                                                                                                                                                                 2 For example: Section 110(a)(2)(E)(i) provides
                                                 1 Under  CAA section 110(k)(4), EPA may               II. What is EPA’s approach to the                      that states must provide assurances that they have
                                               conditionally approve a SIP revision based on a         review of infrastructure SIP                           adequate legal authority under state and local law
                                               commitment from a state to adopt specific                                                                      to carry out the SIP; Section 110(a)(2)(C) provides
                                               enforceable measures by a date certain, but not later   submissions?                                           that states must have a SIP-approved program to
                                               than one year from the date of approval. If the state      The requirement for states to make a                address certain sources as required by part C of
                                               fails to meet the commitment within one year of the                                                            Title I of the CAA; and section 110(a)(2)(G) provides
                                               final conditional approval, the conditional approval
                                                                                                       SIP submission of this type arises out of              that states must have legal authority to address
                                               automatically becomes a disapproval on that date        section 110(a)(1). Pursuant to section                 emergencies as well as contingency plans that are
                                               and EPA will issue a finding of disapproval.            110(a)(1), states must make SIP                        triggered in the event of such emergencies.



                                          VerDate Sep<11>2014   14:36 Jun 07, 2016   Jkt 238001   PO 00000   Frm 00034   Fmt 4702   Sfmt 4702   E:\FR\FM\08JNP1.SGM   08JNP1


                                               36844                   Federal Register / Vol. 81, No. 110 / Wednesday, June 8, 2016 / Proposed Rules

                                               110(a)(2) contains ambiguities                          NAAQS. If states elect to make such                      Therefore, as with infrastructure SIP
                                               concerning what is required for                         multiple SIP submissions to meet the                     submissions, EPA also has to identify
                                               inclusion in an infrastructure SIP                      infrastructure SIP requirements, EPA                     and interpret the relevant elements of
                                               submission.                                             can elect to act on such submissions                     section 110(a)(2) that logically apply to
                                                  The following examples of                            either individually or in a larger                       these other types of SIP submissions.
                                               ambiguities illustrate the need for EPA                 combined action.5 Similarly, EPA                         For example, section 172(c)(7) requires
                                               to interpret some section 110(a)(1) and                 interprets the CAA to allow it to take                   attainment plan SIP submissions
                                               section 110(a)(2) requirements with                     action on the individual parts of one                    required by part D to meet the
                                               respect to infrastructure SIP                           larger, comprehensive infrastructure SIP                 ‘‘applicable requirements’’ of section
                                               submissions for a given new or revised                  submission for a given NAAQS without                     110(a)(2); thus, attainment plan SIP
                                               NAAQS. One example of ambiguity is                      concurrent action on the entire                          submissions must meet the
                                               that section 110(a)(2) requires that                    submission. For example, EPA has                         requirements of section 110(a)(2)(A)
                                               ‘‘each’’ SIP submission must meet the                   sometimes elected to act at different                    regarding enforceable emission limits
                                               list of requirements therein, while EPA                 times on various elements and sub-                       and control measures and section
                                               has long noted that this literal reading                elements of the same infrastructure SIP                  110(a)(2)(E)(i) regarding air agency
                                               of the statute is internally inconsistent               submission.6                                             resources and authority. By contrast, it
                                               and would create a conflict with the                      Ambiguities within section 110(a)(1)                   is clear that attainment plan SIP
                                               nonattainment provisions in part D of                   and (2) may also arise with respect to                   submissions required by part D would
                                               Title I of the CAA, which specifically                  infrastructure SIP submission                            not need to meet the portion of section
                                               address nonattainment SIP                               requirements for different NAAQS.                        110(a)(2)(C) that pertains to the PSD
                                               requirements.3 Section 110(a)(2)(I)                     Thus, EPA notes that not every element                   program required in part C of Title I of
                                               pertains to nonattainment SIP                           of section 110(a)(2) would be relevant,                  the CAA, because PSD does not apply
                                               requirements and part D addresses                       or as relevant, or relevant in the same                  to a pollutant for which an area is
                                               when attainment plan SIP submissions                    way, for each new or revised NAAQS.                      designated nonattainment and thus
                                               to address nonattainment area                           The states’ attendant infrastructure SIP                 subject to part D planning requirements.
                                               requirements are due. For example,                      submissions for each NAAQS therefore                     As this example illustrates, each type of
                                               section 172(b) requires EPA to establish                could be different. For example, the                     SIP submission may implicate some
                                               a schedule for submission of such plans                 monitoring requirements that a state                     elements of section 110(a)(2) but not
                                               for certain pollutants when the                         might need to meet in its infrastructure                 others.
                                               Administrator promulgates the                           SIP submission for purposes of section                      Given the potential for ambiguity in
                                               designation of an area as nonattainment,                110(a)(2)(B) could be very different for                 some of the statutory language of section
                                               and section 107(d)(1)(B) allows up to                   different pollutants, because the content                110(a)(1) and section 110(a)(2), EPA
                                               two years or in some cases three years,                 and scope of a state’s infrastructure SIP                believes that it is appropriate to
                                               for such designations to be                             submission to meet this element might                    interpret the ambiguous portions of
                                               promulgated.4 This ambiguity illustrates                be very different for an entirely new                    section 110(a)(1) and section 110(a)(2)
                                               that rather than apply all the stated                   NAAQS than for a minor revision to an                    in the context of acting on a particular
                                               requirements of section 110(a)(2) in a                  existing NAAQS.7                                         SIP submission. In other words, EPA
                                               strict literal sense, EPA must determine                   EPA notes that interpretation of                      assumes that Congress could not have
                                               which provisions of section 110(a)(2)                   section 110(a)(2) is also necessary when                 intended that each and every SIP
                                               are applicable for a particular                         EPA reviews other types of SIP                           submission, regardless of the NAAQS in
                                               infrastructure SIP submission.                          submissions required under the CAA.
                                                                                                                                                                question or the history of SIP
                                                  Another example of ambiguity within
                                                                                                                                                                development for the relevant pollutant,
                                               section 110(a)(1) and (2) with respect to                 5 See, e.g., ‘‘Approval and Promulgation of

                                                                                                       Implementation Plans; New Mexico; Revisions to           would meet each of the requirements, or
                                               infrastructure SIPs pertains to whether
                                                                                                       the New Source Review (NSR) State                        meet each of them in the same way.
                                               states must meet all of the infrastructure              Implementation Plan (SIP); Prevention of                 Therefore, EPA has adopted an
                                               SIP requirements in a single SIP                        Significant Deterioration (PSD) and Nonattainment        approach under which it reviews
                                               submission, and whether EPA must act                    New Source Review (NNSR) Permitting,’’ 78 FR
                                                                                                       4339 (January 22, 2013) (EPA’s final action              infrastructure SIP submissions against
                                               upon such SIP submission in a single
                                                                                                       approving the structural PSD elements of the New         the list of elements in section 110(a)(2),
                                               action. Although section 110(a)(1)                      Mexico SIP submitted by the State separately to          but only to the extent each element
                                               directs states to submit ‘‘a plan’’ to meet             meet the requirements of EPA’s 2008 PM2.5 NSR
                                               these requirements, EPA interprets the                                                                           applies for that particular NAAQS.
                                                                                                       rule), and ‘‘Approval and Promulgation of Air
                                                                                                       Quality Implementation Plans; New Mexico;                   Historically, EPA has elected to use
                                               CAA to allow states to make multiple
                                                                                                       Infrastructure and Interstate Transport                  guidance documents to make
                                               SIP submissions separately addressing                   Requirements for the 2006 PM2.5 NAAQS,’’ 78 FR           recommendations to states for
                                               infrastructure SIP elements for the same                4337 (January 22, 2013) (EPA’s final action on the       infrastructure SIPs, in some cases
                                                                                                       infrastructure SIP for the 2006 PM2.5 NAAQS).
                                                 3 See, e.g., ‘‘Rule To Reduce Interstate Transport      6 On December 14, 2007, the State of Tennessee,
                                                                                                                                                                conveying needed interpretations on
                                               of Fine Particulate Matter and Ozone (Clean Air         through the Tennessee Department of Environment          newly arising issues and in some cases
                                               Interstate Rule); Revisions to Acid Rain Program;       and Conservation, made a SIP revision to EPA             conveying interpretations that have
                                               Revisions to the NOX SIP Call; Final Rule,’’ 70 FR      demonstrating that the State meets the requirements      already been developed and applied to
                                               25162, at 25163–65 (May 12, 2005) (explaining           of sections 110(a)(1) and (2). EPA proposed action
                                               relationship between timing requirement of section      for infrastructure SIP elements (C) and (J) on
                                                                                                                                                                individual SIP submissions for
                                               110(a)(2)(D) versus section 110(a)(2)(I)).              January 23, 2012 (77 FR 3213) and took final action      particular elements.8 EPA most recently
                                                 4 EPA notes that this ambiguity within section        on March 14, 2012 (77 FR 14976). On April 16,
ehiers on DSK5VPTVN1PROD with PROPOSALS




                                               110(a)(2) is heightened by the fact that various        2012 (77 FR 22533) and July 23, 2012 (77 FR                8 EPA notes, however, that nothing in the CAA

                                               subparts of part D set specific dates for submission    42997), EPA took separate proposed and final             requires EPA to provide guidance or to promulgate
                                               of certain types of SIP submissions in designated       actions on all other section 110(a)(2) infrastructure    regulations for infrastructure SIP submissions. The
                                               nonattainment areas for various pollutants. Note,       SIP elements of Tennessee’s December 14, 2007            CAA directly applies to states and requires the
                                               e.g., that section 182(a)(1) provides specific dates    submittal.                                               submission of infrastructure SIP submissions,
                                               for submission of emissions inventories for the           7 For example, implementation of the 1997 PM
                                                                                                                                                          2.5   regardless of whether or not EPA provides guidance
                                               ozone NAAQS. Some of these specific dates are           NAAQS required the deployment of a system of             or regulations pertaining to such submissions. EPA
                                               necessarily later than three years after promulgation   new monitors to measure ambient levels of that new       elects to issue such guidance in order to assist
                                               of the new or revised NAAQS.                            indicator species for the new NAAQS.                     states, as appropriate.



                                          VerDate Sep<11>2014   14:36 Jun 07, 2016   Jkt 238001   PO 00000   Frm 00035   Fmt 4702   Sfmt 4702   E:\FR\FM\08JNP1.SGM    08JNP1


                                                                        Federal Register / Vol. 81, No. 110 / Wednesday, June 8, 2016 / Proposed Rules                                                   36845

                                               issued guidance for infrastructure SIPs                   agency). However they are addressed by                emissions; 11 (ii) existing provisions
                                               on September 13, 2013 (2013                               the state, the substantive requirements               related to ‘‘director’s variance’’ or
                                               Guidance).9 EPA developed this                            of Section 128 are necessarily included               ‘‘director’s discretion’’ that may be
                                               document to provide states with up-to-                    in EPA’s evaluation of infrastructure SIP             contrary to the CAA because they
                                               date guidance for infrastructure SIPs for                 submissions because section                           purport to allow revisions to SIP-
                                               any new or revised NAAQS. Within this                     110(a)(2)(E)(ii) explicitly requires that             approved emissions limits while
                                               guidance, EPA describes the duty of                       the state satisfy the provisions of section           limiting public process or not requiring
                                               states to make infrastructure SIP                         128.                                                  further approval by EPA; and (iii)
                                               submissions to meet basic structural SIP                     As another example, EPA’s review of                existing provisions for PSD programs
                                               requirements within three years of                        infrastructure SIP submissions with                   that may be inconsistent with current
                                               promulgation of a new or revised                          respect to the PSD program                            requirements of EPA’s ‘‘Final NSR
                                               NAAQS. EPA also made                                      requirements in section 110(a)(2)(C),                 Improvement Rule,’’ 67 FR 80186
                                               recommendations about many specific                       (D)(i)(II), and (J) focuses upon the                  (December 31, 2002), as amended by 72
                                               subsections of section 110(a)(2) that are                 structural PSD program requirements                   FR 32526 (June 13, 2007) (NSR Reform).
                                               relevant in the context of infrastructure                 contained in part C and EPA’s PSD                     Thus, EPA believes that it may approve
                                               SIP submissions.10 The guidance also                      regulations. Structural PSD program                   an infrastructure SIP submission
                                               discusses the substantively important                     requirements include provisions                       without scrutinizing the totality of the
                                               issues that are germane to certain                        necessary for the PSD program to                      existing SIP for such potentially
                                               subsections of section 110(a)(2). EPA                     address all regulated sources and NSR                 deficient provisions and may approve
                                               interprets section 110(a)(1) and (2) such                 pollutants, including Greenhouse Gases.               the submission even if it is aware of
                                               that infrastructure SIP submissions need                  By contrast, structural PSD program                   such existing provisions.12 It is
                                               to address certain issues and need not                    requirements do not include provisions                important to note that EPA’s approval of
                                               address others. Accordingly, EPA                          that are not required under EPA’s                     a state’s infrastructure SIP submission
                                               reviews each infrastructure SIP                           regulations at 40 CFR 51.166 but are                  should not be construed as explicit or
                                               submission for compliance with the                        merely available as an option for the                 implicit re-approval of any existing
                                               applicable statutory provisions of                        state, such as the option to provide                  potentially deficient provisions that
                                               section 110(a)(2), as appropriate.                        grandfathering of complete permit                     relate to the three specific issues just
                                                  As an example, section 110(a)(2)(E)(ii)                applications with respect to the PM2.5                described.
                                               is a required element of section                          NAAQS. Accordingly, the latter                           EPA’s approach to review of
                                               110(a)(2) for infrastructure SIP                          optional provisions are types of                      infrastructure SIP submissions is to
                                               submissions. Under this element, a state                  provisions EPA considers irrelevant in                identify the CAA requirements that are
                                               must meet the substantive requirements                    the context of an infrastructure SIP                  logically applicable to that submission.
                                               of section 128, which pertain to state                    action.                                               EPA believes that this approach to the
                                               boards that approve permits or                               For other section 110(a)(2) elements,              review of a particular infrastructure SIP
                                               enforcement orders and heads of                           however, EPA’s review of a state’s                    submission is appropriate, because it
                                               executive agencies with similar powers.                   infrastructure SIP submission focuses                 would not be reasonable to read the
                                               Thus, EPA reviews infrastructure SIP                      on assuring that the state’s                          general requirements of section
                                               submissions to ensure that the state’s                    implementation plan meets basic                       110(a)(1) and the list of elements in
                                               implementation plan appropriately                         structural requirements. For example,                 section 110(a)(2) as requiring review of
                                               addresses the requirements of section                     section 110(a)(2)(C) includes, inter alia,            each and every provision of a state’s
                                               110(a)(2)(E)(ii) and section 128. The                     the requirement that states have a                    existing SIP against all requirements in
                                               2013 Guidance explains EPA’s                              program to regulate minor new sources.                the CAA and EPA regulations merely for
                                               interpretation that there may be a                        Thus, EPA evaluates whether the state                 purposes of assuring that the state in
                                               variety of ways by which states can                       has an EPA-approved minor new source                  question has the basic structural
                                               appropriately address these substantive                   review program and whether the                        elements for a functioning SIP for a new
                                               statutory requirements, depending on                      program addresses the pollutants                      or revised NAAQS. Because SIPs have
                                               the structure of an individual state’s                    relevant to that NAAQS. In the context                grown by accretion over the decades as
                                               permitting or enforcement program (e.g.,                  of acting on an infrastructure SIP                    statutory and regulatory requirements
                                               whether permits and enforcement                           submission, however, EPA does not                     under the CAA have evolved, they may
                                               orders are approved by a multi-member                     think it is necessary to conduct a review               11 Subsequent to issuing the 2013 Guidance,
                                               board or by a head of an executive                        of each and every provision of a state’s              EPA’s interpretation of the CAA with respect to the
                                                                                                         existing minor source program (i.e.,                  approvability of affirmative defense provisions in
                                                  9 ‘‘Guidance on Infrastructure State
                                                                                                         already in the existing SIP) for                      SIPs has changed. See ‘‘State Implementation Plans:
                                               Implementation Plan (SIP) Elements under Clean            compliance with the requirements of the               Response to Petition for Rulemaking; Restatement
                                               Air Act Sections 110(a)(1) and 110(a)(2),’’                                                                     and Update of EPA’s SSM Policy Applicable to
                                               Memorandum from Stephen D. Page, September 13,            CAA and EPA’s regulations that pertain                SIPs; Findings of Substantial Inadequacy; and SIP
                                               2013.                                                     to such programs.                                     Calls To Amend Provisions Applying to Excess
                                                  10 EPA’s September 13, 2013, guidance did not             With respect to certain other issues,              Emissions During Periods of Startup, Shutdown and
                                               make recommendations with respect to                      EPA does not believe that an action on                Malfunction,’’ 80 FR 33839 (June 12, 2015). As a
                                               infrastructure SIP submissions to address section                                                               result, EPA’s 2013 Guidance (p. 21 & n.30) no
                                               110(a)(2)(D)(i)(I). EPA issued the guidance shortly
                                                                                                         a state’s infrastructure SIP submission is            longer represents the EPA’s view concerning the
                                               after the U.S. Supreme Court agreed to review the         necessarily the appropriate type of                   validity of affirmative defense provisions, in light
                                               D.C. Circuit decision in EME Homer City, 696 F.3d         action in which to address possible                   of the requirements of section 113 and section 304.
ehiers on DSK5VPTVN1PROD with PROPOSALS




                                               7 (D.C. Cir. 2012) which had interpreted the              deficiencies in a state’s existing SIP.                 12 By contrast, EPA notes that if a state were to

                                               requirements of section 110(a)(2)(D)(i)(I). In light of                                                         include a new provision in an infrastructure SIP
                                               the uncertainty created by ongoing litigation, EPA
                                                                                                         These issues include: (i) Existing                    submission that contained a legal deficiency, such
                                               elected not to provide additional guidance on the         provisions related to excess emissions                as a new exemption or affirmative defense for
                                               requirements of section 110(a)(2)(D)(i)(I) at that        from sources during periods of startup,               excess emissions during SSM events, then EPA
                                               time. As the guidance is neither binding nor              shutdown, or malfunction (SSM) that                   would need to evaluate that provision for
                                               required by statute, whether EPA elects to provide                                                              compliance against the rubric of applicable CAA
                                               guidance on a particular section has no impact on
                                                                                                         may be contrary to the CAA and EPA’s                  requirements in the context of the action on the
                                               a state’s CAA obligations.                                policies addressing such excess                       infrastructure SIP.



                                          VerDate Sep<11>2014    14:36 Jun 07, 2016   Jkt 238001   PO 00000   Frm 00036   Fmt 4702   Sfmt 4702   E:\FR\FM\08JNP1.SGM   08JNP1


                                               36846                   Federal Register / Vol. 81, No. 110 / Wednesday, June 8, 2016 / Proposed Rules

                                               include some outmoded provisions and                    Significantly, EPA’s determination that                  agency’s jurisdiction are not interfering
                                               historical artifacts. These provisions,                 an action on a state’s infrastructure SIP                with measures required to be included
                                               while not fully up to date, nevertheless                submission is not the appropriate time                   in other air agencies’ plans to protect
                                               may not pose a significant problem for                  and place to address all potential                       visibility.
                                               the purposes of ‘‘implementation,                       existing SIP deficiencies does not                         Alternatively, in the absence of a fully
                                               maintenance, and enforcement’’ of a                     preclude EPA’s subsequent reliance on                    approved regional haze SIP, a state may
                                               new or revised NAAQS when EPA                           provisions in section 110(a)(2) as part of               meet the requirements of prong 4
                                               evaluates adequacy of the infrastructure                the basis for action to correct those                    through a demonstration in its
                                               SIP submission. EPA believes that a                     deficiencies at a later time. For example,               infrastructure SIP submission that
                                               better approach is for states and EPA to                although it may not be appropriate to                    emissions within its jurisdiction do not
                                               focus attention on those elements of                    require a state to eliminate all existing                interfere with other air agencies’ plans
                                               section 110(a)(2) of the CAA most likely                inappropriate director’s discretion                      to protect visibility. Such an
                                               to warrant a specific SIP revision due to               provisions in the course of acting on an                 infrastructure SIP submission would
                                               the promulgation of a new or revised                    infrastructure SIP submission, EPA                       need to include measures to limit
                                               NAAQS or other factors.                                 believes that section 110(a)(2)(A) may be                visibility-impairing pollutants and
                                                  For example, EPA’s 2013 Guidance                     among the statutory bases that EPA                       ensure that the reductions conform with
                                               gives simpler recommendations with                      relies upon in the course of addressing                  any mutually agreed regional haze
                                               respect to carbon monoxide than other                   such deficiency in a subsequent                          reasonable progress goals for mandatory
                                               NAAQS pollutants to meet the visibility                 action.15                                                Class I areas in other states.
                                               requirements of section
                                                                                                       III. What are the Prong 4 requirements?                  IV. What is EPA’s analysis of how
                                               110(a)(2)(D)(i)(II), because carbon
                                                                                                                                                                South Carolina addressed Prong 4?
                                               monoxide does not affect visibility. As                    Section 110(a)(2)(D)(i)(II) includes a
                                               a result, an infrastructure SIP                         requirement that a state’s                                  South Carolina’s July 17, 2012, 2008
                                               submission for any future new or                        implementation plan contain provisions                   8-hour Ozone submission; April 30,
                                               revised NAAQS for carbon monoxide                       prohibiting sources in that state from                   2014, 2010 1-hour NO2 submission; May
                                               need only state this fact in order to                   emitting pollutants in amounts that                      8, 2014, 2010 1-hour SO2 submission;
                                               address the visibility prong of section                 interfere with any other state’s efforts to              and December 18, 2015, 2012 annual
                                               110(a)(2)(D)(i)(II).                                    protect visibility under part C of Title I               PM2.5 submission cite to the State’s
                                                  Finally, EPA believes that its                       of the CAA (which includes sections                      regional haze SIP as satisfying prong 4
                                               approach with respect to infrastructure                 169A and 169B). The 2013 Guidance                        requirements.16 However, as explained
                                               SIP requirements is based on a                          states that these prong 4 requirements                   below, EPA has not yet fully approved
                                               reasonable reading of section 110(a)(1)                 can be satisfied by approved SIP                         South Carolina’s regional haze SIP
                                               and (2) because the CAA provides other                  provisions that EPA has found to                         because the SIP relies on the Clean Air
                                               avenues and mechanisms to address                       adequately address any contribution of                   Interstate Rule (CAIR) to satisfy the
                                               specific substantive deficiencies in                    that state’s sources to impacts on                       nitrogen oxides (NOX) and SO2 Best
                                               existing SIPs. These other statutory tools              visibility program requirements in other                 Available Retrofit Technology (BART)
                                               allow EPA to take appropriately tailored                states. The 2013 Guidance also states                    requirements for the CAIR-subject
                                               action, depending upon the nature and                   that EPA interprets this prong to be                     electric generating units (EGUs) in the
                                               severity of the alleged SIP deficiency.                 pollutant-specific, such that the                        State and the requirement for a long-
                                               Section 110(k)(5) authorizes EPA to                     infrastructure SIP submission need only                  term strategy sufficient to achieve the
                                               issue a ‘‘SIP call’’ whenever the Agency                address the potential for interference                   state-adopted reasonable progress
                                               determines that a state’s SIP is                        with protection of visibility caused by                  goals.17
                                               substantially inadequate to attain or                                                                               EPA demonstrated that CAIR
                                                                                                       the pollutant (including precursors) to
                                               maintain the NAAQS, to mitigate                                                                                  achieved greater reasonable progress
                                                                                                       which the new or revised NAAQS
                                               interstate transport, or to otherwise                                                                            toward the national visibility goal than
                                                                                                       applies.
                                               comply with the CAA.13 Section                             The 2013 Guidance delineates two                      BART for NOX and SO2 at BART-eligible
                                               110(k)(6) authorizes EPA to correct                     ways in which a state’s infrastructure                   EGUs in CAIR affected states, and
                                               errors in past actions, such as past                    SIP may satisfy prong 4. The first way                   revised the regional haze rule to provide
                                               approvals of SIP submissions.14                         is through an air agency’s confirmation                  that states participating in CAIR’s cap-
                                                                                                       in its infrastructure SIP submission that                and-trade programs need not require
                                                 13 For example, EPA issued a SIP call to Utah to                                                               affected BART-eligible EGUs to install,
                                                                                                       it has an EPA-approved regional haze
                                               address specific existing SIP deficiencies related to                                                            operate, and maintain BART for
                                                                                                       SIP that fully meets the requirements of
                                               the treatment of excess emissions during SSM                                                                     emissions of SO2 and NOX. See 70 FR
                                               events. See ‘‘Finding of Substantial Inadequacy of      40 CFR 51.308 or 51.309. 40 CFR 51.308
                                                                                                                                                                39104 (July 6, 2005). As a result, a
                                               Implementation Plan; Call for Utah State                and 51.309 specifically require that a
                                               Implementation Plan Revisions,’’ 74 FR 21639                                                                     number of states in the CAIR region
                                                                                                       state participating in a regional planning
                                               (April 18, 2011).                                                                                                designed their regional haze SIPs to rely
                                                 14 EPA has used this authority to correct errors in
                                                                                                       process include all measures needed to
                                               past actions on SIP submissions related to PSD          achieve its apportionment of emission                       16 The April 30, 2014, 2010 1-hour NO
                                                                                                                                                                                                         2
                                               programs. See ‘‘Limitation of Approval of               reduction obligations agreed upon                        submission; May 8, 2014, 2010 1-hour SO2
                                               Prevention of Significant Deterioration Provisions      through that process. A fully approved                   submission; and December 18, 2015 also cite to the
                                               Concerning Greenhouse Gas Emitting-Sources in           regional haze SIP will ensure that                       State’s December 2012 regional haze progress
                                               State Implementation Plans; Final Rule,’’ 75 FR                                                                  report.
                                               82536 (December 30, 2010). EPA has previously           emissions from sources under an air
ehiers on DSK5VPTVN1PROD with PROPOSALS




                                                                                                                                                                   17 CAIR, promulgated in 2005, required 27 states
                                               used its authority under section 110(k)(6) of the                                                                and the District of Columbia to reduce emissions of
                                               CAA to remove numerous other SIP provisions that           15 See, e.g., EPA’s disapproval of a SIP submission
                                                                                                                                                                NOX and SO2 that significantly contribute to, or
                                               the Agency determined it had approved in error.         from Colorado on the grounds that it would have          interfere with maintenance of, the 1997 NAAQS for
                                               See, e.g., 61 FR 38664 (July 25, 1996) and 62 FR        included a director’s discretion provision               fine particulates and/or ozone in any downwind
                                               34641 (June 27, 1997) (corrections to American          inconsistent with CAA requirements, including            state. CAIR imposed specified emissions reduction
                                               Samoa, Arizona, California, Hawaii, and Nevada          section 110(a)(2)(A). See, e.g., 75 FR 42342 at 42344    requirements on each affected State, and
                                               SIPs); 69 FR 67062, November 16, 2004 (corrections      (July 21, 2010) (proposed disapproval of director’s      established several EPA-administered cap and trade
                                               to California SIP); and 74 FR 57051 (November 3,        discretion provisions); 76 FR 4540 (January 26,          programs for EGUs that States could join as a means
                                               2009) (corrections to Arizona and Nevada SIPs).         2011) (final disapproval of such provisions).            to meet these requirements.



                                          VerDate Sep<11>2014   14:36 Jun 07, 2016   Jkt 238001   PO 00000   Frm 00037   Fmt 4702   Sfmt 4702   E:\FR\FM\08JNP1.SGM    08JNP1


                                                                      Federal Register / Vol. 81, No. 110 / Wednesday, June 8, 2016 / Proposed Rules                                             36847

                                               on CAIR as an alternative to NOX and                    to a number of states. EME Homer City                    remain a part of the SIP until EPA takes
                                               SO2 BART for CAIR-subject EGUs.                         Generation, L.P. v. EPA, 795 F.3d 118                    final action approving or disapproving
                                               These states also relied on CAIR as an                  (D.C. Cir. 2015). The remanded budgets                   the new SIP revision(s). However, if the
                                               element of a long-term strategy for                     include the Phase 2 SO2 emissions                        State fails to submit these revisions
                                               achieving their reasonable progress                     budget for South Carolina.20                             within the one-year timeframe, the
                                               goals.                                                     Although South Carolina’s                             conditional approval will automatically
                                                  The United States Court of Appeals                   infrastructure SIP revisions cite to the                 become a disapproval one year from
                                               for the District of Columbia Circuit (D.C.              regional haze program as satisfying the                  EPA’s final conditional approval and
                                               Circuit) initially vacated CAIR in                      requirements of Prong 4, the State may                   EPA will issue a finding of disapproval.
                                               2008,18 but ultimately remanded the                     not currently rely on its regional haze                  EPA is not required to propose the
                                               rule to EPA without vacatur to preserve                 SIP to satisfy these requirements                        finding of disapproval. If the
                                               the environmental benefits provided by                  because the regional haze SIP is not                     conditional approval is converted to a
                                               CAIR.19 On August 8, 2011 (76 FR                        fully approved. In addition, these                       disapproval, the final disapproval
                                               48208), acting on the D.C. Circuit’s                    revisions do not otherwise demonstrate                   triggers the FIP requirement under CAA
                                               remand, EPA promulgated the Cross-                      that emissions within the State’s                        section 110(c).
                                               State Air Pollution Rule (CSAPR) to                     jurisdiction do not interfere with other
                                               replace CAIR and thus to address the                    states’ plans to protect visibility.                     V. Proposed Action
                                               interstate transport of emissions                       Therefore, on April 19, 2016, South                         As described above, EPA is proposing
                                               contributing to nonattainment and                       Carolina submitted a commitment letter                   to conditionally approve the prong 4
                                               interfering with maintenance of the two                 to EPA requesting conditional approval                   portions of South Carolina’s July 17,
                                               air quality standards covered by CAIR as                of the prong 4 portions of the                           2008 8-hour Ozone infrastructure SIP
                                               well as the 2006 PM2.5 NAAQS.                           aforementioned infrastructure SIP                        submission; April 30, 2014, 2010 1-hour
                                                  Due to CAIR’s status as a temporary                  revisions.21 In this letter, South Carolina              NO2 infrastructure SIP submission; May
                                               measure following the D.C. Circuit’s                    commits to satisfy the prong 4                           8, 2014, 2010 1-hour SO2 infrastructure
                                               2008 ruling, EPA could not fully                        requirements for the 2008 8-hour ozone                   SIP submission; and December 18, 2015,
                                               approve regional haze SIP revisions to                  NAAQS, 2010 1-hour NO2 NAAQS,                            2012 annual PM2.5 infrastructure SIP
                                               the extent that they relied on CAIR to                  2010 1-hour SO2 NAAQS, and 2012                          submission. All other applicable
                                               satisfy the BART requirement and the                    PM2.5 NAAQS by providing a SIP                           infrastructure requirements for these SIP
                                               requirement for a long-term strategy                    revision that adopts provisions for                      submissions have been or will be
                                               sufficient to achieve the state-adopted                 participation in the CSAPR annual NOX                    addressed in separate rulemakings.
                                               reasonable progress goals. On these                     and annual SO2 trading programs,                         VI. Statutory and Executive Order
                                               grounds, EPA finalized a limited                        including annual NOX and annual SO2                      Reviews
                                               disapproval of South Carolina’s regional                budgets that are at least as stringent as
                                               haze SIP on June 7, 2012 (77 FR 33642),                 the budgets codified for South Carolina                     Under the CAA, the Administrator is
                                               triggering the requirement for EPA to                   at 40 CFR 97.710(a) (SO2 Group 2                         required to approve a SIP submission
                                               promulgate a Federal Implementation                     trading budgets) and 40 CFR 97.410(a)                    that complies with the provisions of the
                                               Plan (FIP) unless South Carolina                        (NOX Annual trading budgets). South                      Act and applicable federal regulations.
                                               submitted and EPA approved a SIP                        Carolina will rely on this SIP revision                  See 42 U.S.C. 7410(k); 40 CFR 52.02(a).
                                               revision that corrected the deficiencies.               adopting such budgets to submit a                        Thus, in reviewing SIP submissions,
                                               EPA finalized a limited approval of                     concurrent SIP revision specifically                     EPA’s role is to approve state choices,
                                               South Carolina’s regional haze SIP on                   addressing the visibility requirements of                provided that they meet the criteria of
                                               June 28, 2012 (77 FR 38509), as meeting                 prong 4. In its commitment letter, South                 the CAA. Accordingly, this proposed
                                               the remaining applicable regional haze                  Carolina commits to providing these                      action merely approves state law as
                                               requirements set forth in the CAA and                   two concurrent SIP revisions within one                  meeting federal requirements and does
                                               the regional haze rule.                                 year of EPA’s final conditional approval                 not impose additional requirements
                                                  Numerous parties filed petitions for                 of the prong 4 portions of the                           beyond those imposed by state law. For
                                               review of CSAPR in the D.C. Circuit,                    infrastructure SIP revisions and                         that reason, this proposed action:
                                               and on August 21, 2012, the court                       provides an anticipated schedule for                        • Is not a ‘‘significant regulatory
                                               issued its ruling, vacating and                         these revisions. If the revised                          action’’ subject to review by the Office
                                               remanding CSAPR to EPA and ordering                     infrastructure SIP revision relies on a                  of Management and Budget under
                                               continued implementation of CAIR.                       fully approvable regional haze SIP,                      Executive Orders 12866 (58 FR 51735,
                                               EME Homer City Generation, L.P. v.                      South Carolina also commits to                           October 4, 1993) and 13563 (76 FR 3821,
                                               EPA, 696 F.3d 7, 38 (D.C. Cir. 2012). The               providing the necessary regional haze                    January 21, 2011);
                                               D.C. Circuit’s vacatur of CSAPR was                     SIP revision to EPA within one year of                      • does not impose an information
                                               reversed by the United States Supreme                   EPA’s final conditional approval.                        collection burden under the provisions
                                               Court on April 29, 2014, and the case                      If South Carolina meets its                           of the Paperwork Reduction Act (44
                                               was remanded to the D.C. Circuit to                     commitment within one year of final                      U.S.C. 3501 et seq.);
                                               resolve remaining issues in accordance                  conditional approval, the prong 4                           • is certified as not having a
                                               with the high court’s ruling. EPA v. EME                portions of the conditionally approved                   significant economic impact on a
                                               Homer City Generation, L.P., 134 S. Ct.                 infrastructure SIP submissions will                      substantial number of small entities
                                               1584 (2014). On remand, the D.C.                                                                                 under the Regulatory Flexibility Act (5
ehiers on DSK5VPTVN1PROD with PROPOSALS




                                               Circuit affirmed CSAPR in most                             20 The D.C. Circuit also invalidated the Phase 2      U.S.C. 601 et seq.);
                                                                                                       ozone season NOX budget for South Carolina. EPA             • does not contain any unfunded
                                               respects, but invalidated without
                                                                                                       has proposed to address the court’s remand of the        mandate or significantly or uniquely
                                               vacating some of the CSAPR budgets as                   Phase 2 ozone season NOX budgets in a notice of          affect small governments, as described
                                                                                                       proposed rulemaking published on December 3,
                                                 18 North Carolina v. EPA, 531 F.3d 896 (D.C. Cir.     2015 (80 FR 75706).
                                                                                                                                                                in the Unfunded Mandates Reform Act
                                               2008).                                                     21 South Carolina’s April 19, 2016, commitment        of 1995 (Pub. L. 104–4);
                                                 19 North Carolina v. EPA, 550 F.3d 1176 (D.C. Cir.    letter is available in the docket for today’s proposed      • does not have Federalism
                                               2008).                                                  action.                                                  implications as specified in Executive


                                          VerDate Sep<11>2014   14:36 Jun 07, 2016   Jkt 238001   PO 00000   Frm 00038   Fmt 4702   Sfmt 4702   E:\FR\FM\08JNP1.SGM   08JNP1


                                               36848                  Federal Register / Vol. 81, No. 110 / Wednesday, June 8, 2016 / Proposed Rules

                                               Order 13132 (64 FR 43255, August 10,                    ENVIRONMENTAL PROTECTION                               should include discussion of all points
                                               1999);                                                  AGENCY                                                 you wish to make. EPA will generally
                                                 • is not an economically significant                                                                         not consider comments or comment
                                                                                                       40 CFR Part 52                                         contents located outside of the primary
                                               regulatory action based on health or
                                               safety risks subject to Executive Order                 [EPA–R04–OAR–2014–0424; FRL–9947–41–                   submission (i.e. on the Web, cloud, or
                                                                                                       Region 4]                                              other file sharing system). For
                                               13045 (62 FR 19885, April 23, 1997);
                                                                                                                                                              additional submission methods, the full
                                                 • is not a significant regulatory action              Air Plan Approval/Disapproval; MS;                     EPA public comment policy,
                                               subject to Executive Order 13211 (66 FR                 Infrastructure Requirements for the                    information about CBI or multimedia
                                               28355, May 22, 2001);                                   2012 PM2.5 National Ambient Air                        submissions, and general guidance on
                                                 • is not subject to requirements of                   Quality Standard                                       making effective comments, please visit
                                               Section 12(d) of the National                                                                                  http://www2.epa.gov/dockets/
                                                                                                       AGENCY:  Environmental Protection
                                               Technology Transfer and Advancement                                                                            commenting-epa-dockets.
                                                                                                       Agency.
                                               Act of 1995 (15 U.S.C. 272 note) because                ACTION: Proposed rule.                                 FOR FURTHER INFORMATION CONTACT:
                                               application of those requirements would                                                                        Tiereny Bell, Air Regulatory
                                               be inconsistent with the CAA; and                       SUMMARY:   The Environmental Protection                Management Section, Air Planning and
                                                                                                       Agency (EPA) is proposing to approve,                  Implementation Branch, Air, Pesticides
                                                 • does not provide EPA with the
                                                                                                       in part, and disapprove in part, portions              and Toxics Management Division, U.S.
                                               discretionary authority to address, as                  of the State Implementation Plan (SIP)                 Environmental Protection Agency,
                                               appropriate, disproportionate human                     submission, submitted by the State of                  Region 4, 61 Forsyth Street SW.,
                                               health or environmental effects, using                  Mississippi, through the Mississippi                   Atlanta, Georgia 30303–8960. Ms. Bell
                                               practicable and legally permissible                     Department of Environmental Quality                    can be reached via telephone at (404)
                                               methods, under Executive Order 12898                    (MDEQ), on December 11, 2015, to                       562–9088 or via electronic mail at
                                               (59 FR 7629, February 16, 1994).                        demonstrate that the State meets the                   bell.tiereny@epa.gov.
                                                 In addition, this proposed action for                 infrastructure requirements of the Clean
                                                                                                       Air Act (CAA or Act) for the 2012                      I. Background and Overview
                                               the state of South Carolina does not
                                               have Tribal implications as specified by                annual fine particulate matter (PM2.5)                    On December 14, 2012 (78 FR 3086,
                                               Executive Order 13175 (65 FR 67249,                     national ambient air quality standard                  January 15, 2013), EPA promulgated a
                                               November 9, 2000). The Catawba Indian                   (NAAQS). The CAA requires that each                    revised primary annual PM2.5 NAAQS.
                                               Nation Reservation is located within the                state adopt and submit a SIP for the                   The standard was strengthened from
                                                                                                       implementation, maintenance and                        15.0 micrograms per cubic meter (mg/
                                               State of South Carolina. Pursuant to the
                                                                                                       enforcement of each NAAQS                              m3) to 12.0 mg/m3. Pursuant to section
                                               Catawba Indian Claims Settlement Act,
                                                                                                       promulgated by EPA, which is                           110(a)(1) of the CAA, states are required
                                               South Carolina statute 27–16–120, ‘‘all                 commonly referred to as an                             to submit SIPs meeting the applicable
                                               state and local environmental laws and                  ‘‘infrastructure’’ SIP. MDEQ certified                 requirements of section 110(a)(2) within
                                               regulations apply to the [Catawba Indian                that the Mississippi SIP contains                      three years after promulgation of a new
                                               Nation] and Reservation and are fully                   provisions to ensure the 2012 Annual                   or revised NAAQS or within such
                                               enforceable by all relevant state and                   PM2.5 NAAQS is implemented,                            shorter period as EPA may prescribe.
                                               local agencies and authorities.’’                       enforced, and maintained in                            Section 110(a)(2) requires states to
                                               However, EPA has determined that                        Mississippi. With the exception of the                 address basic SIP elements such as
                                               because this proposed rule does not                     state board majority requirements                      requirements for monitoring, basic
                                               have substantial direct effects on an                   respecting significant portion of income,              program requirements and legal
                                               Indian Tribe because, as noted above,                   for which EPA is proposing to                          authority that are designed to assure
                                               this action is not approving any specific               disapprove, EPA is proposing to                        attainment and maintenance of the
                                               rule, but rather proposing that South                   determine that portions of Mississippi’s               NAAQS. States were required to submit
                                               Carolina’s already approved SIP meets                   infrastructure submission, submitted to                such SIPs for the 2012 Annual PM2.5
                                               certain CAA requirements. EPA notes                     EPA on December 11, 2015, satisfy                      NAAQS to EPA no later than December
                                               this action will not impose substantial                 certain required infrastructure elements               14, 2015.1
                                               direct costs on Tribal governments or                   for the 2012 Annual PM2.5 NAAQS.                          This action is proposing to approve
                                               preempt Tribal law.                                     DATES: Written comments must be                        Mississippi’s infrastructure SIP
                                                                                                       received on or before July 8, 2016.                    submission for the applicable
                                               List of Subjects in 40 CFR Part 52                      ADDRESSES: Submit your comments,                       requirements of the 2012 Annual PM2.5
                                                                                                       identified by Docket ID No. EPA–R04–                   NAAQS, with the exception of the
                                                 Environmental protection, Air
                                                                                                       OAR–2014–0424 at http://                               visibility requirement of section
                                               pollution control, Incorporation by
                                                                                                       www.regulations.gov. Follow the online                 110(a)(2)(D)(i)(II) (prong 4), interstate
                                               reference, Intergovernmental relations,
                                                                                                       instructions for submitting comments.
                                               Nitrogen dioxide, Ozone, Particulate                                                                              1 In these infrastructure SIP submissions States
                                                                                                       Once submitted, comments cannot be
                                               matter, Reporting and recordkeeping                                                                            generally certify evidence of compliance with
                                                                                                       edited or removed from Regulations.gov.                sections 110(a)(1) and (2) of the CAA through a
                                               requirements, Volatile organic                          EPA may publish any comment received                   combination of state regulations and statutes, some
                                               compounds.                                              to its public docket. Do not submit                    of which have been incorporated into the federally-
                                                                                                       electronically any information you                     approved SIP. In addition, certain federally-
ehiers on DSK5VPTVN1PROD with PROPOSALS




                                                  Authority: 42 U.S.C. 7401 et seq.
                                                                                                                                                              approved, non-SIP regulations may also be
                                                 Dated: May 26, 2016.                                  consider to be Confidential Business                   appropriate for demonstrating compliance with
                                                                                                       Information (CBI) or other information                 sections 110(a)(1) and (2). Throughout this
                                               Heather McTeer Toney,
                                                                                                       whose disclosure is restricted by statute.             rulemaking, unless otherwise indicated, the term
                                               Regional Administrator, Region 4.                       Multimedia submissions (audio, video,                  ‘‘APC’’ indicates Mississippi Air Pollution Control
                                               [FR Doc. 2016–13606 Filed 6–7–16; 8:45 am]                                                                     (APC) regulations relevant to air quality control.
                                                                                                       etc.) must be accompanied by a written                 The cited regulation has either been approved, or
                                               BILLING CODE 6560–50–P                                  comment. The written comment is                        submitted for approval into Mississippi’s federally-
                                                                                                       considered the official comment and                    approved SIP.



                                          VerDate Sep<11>2014   14:36 Jun 07, 2016   Jkt 238001   PO 00000   Frm 00039   Fmt 4702   Sfmt 4702   E:\FR\FM\08JNP1.SGM   08JNP1



Document Created: 2016-06-08 03:10:39
Document Modified: 2016-06-08 03:10:39
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionProposed rule.
DatesComments must be received on or before July 8, 2016.
ContactSean Lakeman of the Air Regulatory Management Section, Air Planning and Implementation Branch, Air, Pesticides and Toxics Management Division, U.S. Environmental Protection Agency, Region 4, 61 Forsyth Street SW., Atlanta, Georgia 30303-8960. Mr. Lakeman can be reached by telephone at (404) 562-9043 or via electronic mail at [email protected]
FR Citation81 FR 36842 
CFR AssociatedEnvironmental Protection; Air Pollution Control; Incorporation by Reference; Intergovernmental Relations; Nitrogen Dioxide; Ozone; Particulate Matter; Reporting and Recordkeeping Requirements and Volatile Organic Compounds

2025 Federal Register | Disclaimer | Privacy Policy
USC | CFR | eCFR