80_FR_28288 80 FR 28193 - Approval and Promulgation of Air Quality Implementation Plans; State of Utah; Utah County-Trading of Motor Vehicle Emission Budgets for PM10

80 FR 28193 - Approval and Promulgation of Air Quality Implementation Plans; State of Utah; Utah County-Trading of Motor Vehicle Emission Budgets for PM10

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 80, Issue 95 (May 18, 2015)

Page Range28193-28201
FR Document2015-11784

The Environmental Protection Agency (EPA) is taking direct final action to approve a State Implementation Plan (SIP) revision submitted by the State of Utah. On March 9, 2015, the Governor of Utah submitted a revision to the Utah SIP, adding a new rule regarding trading of motor vehicle emission budgets (MVEB) for Utah County. The rule allows trading from the motor vehicle emissions budget for primary particulate matter of 10 microns or less in diameter (PM<INF>10</INF>) to the motor vehicle emissions budget for nitrogen oxides (NO<INF>X</INF>), which is a PM<INF>10</INF> precursor. The resulting motor vehicle emissions budgets for NO<INF>X</INF> and PM<INF>10</INF> may then be used to demonstrate transportation conformity with the SIP. The EPA is taking this action under section 110 of the Clean Air Act (CAA).

Federal Register, Volume 80 Issue 95 (Monday, May 18, 2015)
[Federal Register Volume 80, Number 95 (Monday, May 18, 2015)]
[Rules and Regulations]
[Pages 28193-28201]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2015-11784]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R08-OAR-2015-0227; FRL-9927-68-Region 8]


Approval and Promulgation of Air Quality Implementation Plans; 
State of Utah; Utah County--Trading of Motor Vehicle Emission Budgets 
for PM10 Transportation Conformity

AGENCY: Environmental Protection Agency.

ACTION: Direct final rule.

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SUMMARY: The Environmental Protection Agency (EPA) is taking direct 
final action to approve a State Implementation Plan (SIP) revision 
submitted by the State of Utah. On March 9, 2015, the Governor of Utah 
submitted a revision to the Utah SIP, adding a new rule regarding 
trading of motor vehicle emission budgets (MVEB) for Utah County. The 
rule allows trading from the motor vehicle emissions budget for primary 
particulate matter of 10 microns or less in diameter (PM10) 
to the motor vehicle emissions budget for nitrogen oxides 
(NOX), which is a PM10 precursor. The resulting 
motor vehicle emissions budgets for NOX and PM10 
may then be used to demonstrate transportation conformity with the SIP. 
The EPA is taking this action under section 110 of the Clean Air Act 
(CAA).

DATES: This rule is effective on July 17, 2015 without further notice, 
unless EPA receives adverse comment by June 17, 2015. If adverse 
comment is received, EPA will publish a timely withdrawal of the direct 
final rule in the Federal Register informing the public that the rule 
will not take effect.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R08-
OAR-2015-0227, by one of the following methods:
     http://www.regulations.gov. Follow the on-line 
instructions for submitting comments.
     Email: [email protected]
     Fax: (303) 312-6064 (please alert the individual listed in 
the FOR FURTHER INFORMATION CONTACT if you are faxing comments).
     Mail: Carl Daly, Director, Air Program, EPA, Region 8, 
Mailcode 8P-AR, 1595 Wynkoop Street, Denver, Colorado 80202-1129.
     Hand Delivery: Carl Daly, Director, Air Program, EPA, 
Region 8, Mailcode 8P-AR, 1595 Wynkoop Street, Denver, Colorado 80202-
1129. Such deliveries are only accepted Monday through Friday, 8:00 
a.m. to 4:30 p.m., excluding federal holidays. Special arrangements 
should be made for deliveries of boxed information.
    Instructions: Direct your comments to Docket ID No. EPA-R08-OAR-
2015-0227. EPA's policy is that all comments received will be included 
in the public docket without change and may be made available online at 
http://www.regulations.gov, including any personal information 
provided, unless the comment includes information claimed to be 
Confidential Business Information (CBI) or other information whose 
disclosure is restricted by statute. Do not submit information that you 
consider to be CBI or otherwise protected through http://www.regulations.gov or email. The http://www.regulations.gov Web site 
is an ``anonymous access'' system, which means EPA will not know your 
identity or contact information unless you provide it in the body of 
your comment. If you send an email comment directly to EPA, without 
going through http://www.regulations.gov, your email address will be 
automatically captured and included as part of the comment that is 
placed in the public docket and made available on the Internet. If you 
submit an electronic comment, EPA recommends that you include your name 
and other contact information in the body of your comment and with any 
disk or CD-ROM you submit. If EPA cannot read your comment due to 
technical difficulties and cannot contact you for clarification, EPA 
may not be able to consider your comment. Electronic files should avoid 
the use of special characters, any form of encryption, and be free of 
any defects or viruses. For additional instructions on submitting 
comments, go to Section I, General Information of the SUPPLEMENTARY 
INFORMATION section of this document.
    Docket: All documents in the docket are listed in the http://www.regulations.gov index. Although listed in the index, some 
information is not publicly available, e.g., CBI or other information 
whose disclosure is restricted by statute. Certain other material, such 
as copyrighted material, will be publicly available only in hard copy. 
Publicly-available docket materials are available either electronically 
in http://www.regulations.gov or in hard copy at the Air Program, EPA, 
Region 8, Mailcode 8P-AR, 1595 Wynkoop Street, Denver, Colorado 80202-
1129. EPA requests that if at all possible, you contact the individual 
listed in the FOR FURTHER INFORMATION CONTACT section to view the hard 
copy of the docket. You may view the hard copy of the docket

[[Page 28194]]

Monday through Friday, 8:00 a.m. to 4:00 p.m., excluding Federal 
holidays.

FOR FURTHER INFORMATION CONTACT: Tim Russ, Air Program, EPA, Region 8, 
Mailcode 8P-AR, 1595 Wynkoop Street, Denver, Colorado 80202-1129, (303) 
312-6479, [email protected].

SUPPLEMENTARY INFORMATION: 

Table of Contents

I. General Information
II. Background
III. What was the State's process?
IV. EPA's Evaluation of Utah Rule R307-311
V. EPA's Evaluation of the Technical Support Document for R307-311
VI. Consideration of Section 110(l) of the Clean Air Act
VII. Final Action
VIII. Incorporation by Reference
IX. Statutory and Executive Order Reviews

I. General Information

    1. Submitting CBI. Do not submit CBI to EPA through http://www.regulations.gov or email. Clearly mark the part or all of the 
information that you claim to be CBI. For CBI information in a disk or 
CD-ROM that you mail to EPA, mark the outside of the disk or CD-ROM as 
CBI and then identify electronically within the disk or CD-ROM the 
specific information that is claimed as CBI. In addition to one 
complete version of the comment that includes information claimed as 
CBI, a copy of the comment that does not contain the information 
claimed as CBI must be submitted for inclusion in the public docket. 
Information so marked will not be disclosed except in accordance with 
procedures set forth in 40 CFR part 2.
    2. Tips for Preparing Your Comments. When submitting comments, 
remember to:
    a. Identify the rulemaking by docket number and other identifying 
information (subject heading, Federal Register date and page number).
    b. Follow directions--The agency may ask you to respond to specific 
questions or organize comments by referencing a Code of Federal 
Regulations (CFR) part or section number.
    c. Explain why you agree or disagree; suggest alternatives and 
substitute language for your requested changes.
    d. Describe any assumptions and provide any technical information 
and/or data that you used.
    e. If you estimate potential costs or burdens, explain how you 
arrived at your estimate in sufficient detail to allow for it to be 
reproduced.
    f. Provide specific examples to illustrate your concerns, and 
suggest alternatives.
    g. Explain your views as clearly as possible, avoiding the use of 
profanity or personal threats.
    h. Make sure to submit your comments by the comment period deadline 
identified.

II. Background

    In this action, we are approving and soliciting public comment 
regarding the Governor's March 9, 2015, submittal of Utah's new Rule 
R307-311 for adoption into the Utah SIP. The rule will allow certain 
trading of MVEBs for the purposes of transportation conformity for 
PM10 for Utah County. Once approved by EPA, the Mountainland 
Association of Governments (MAG) will then be able to use the 
provisions of Rule R307-311 when MAG performs a transportation 
conformity determination for its Regional Transportation Plan (RTP) 
and/or Transportation Improvement Program (TIP).
    The above SIP action that was adopted by the Utah Air Quality Board 
(UAQB), and subsequently submitted to EPA by the Governor of Utah for 
approval, is discussed in greater detail in sections III, IV, and V 
below. We also discuss the state's associated technical support 
document (TSD), which gives technical information to support new Rule 
R307-311.

III. What was the State's process?

    Sections 110(a)(2) and 110(l) of the CAA requires that a state 
provide reasonable notice and public hearing before adopting a SIP 
revision and submitting it to us. More detailed requirements for notice 
and public hearing are set out in 40 CFR 51.102.
    On December 4, 2014 the UAQB proposed for public comment amendments 
to the Utah SIP for Utah Air Quality Rule R307-311; ``Utah County: 
Trading of Emission Budgets for Transportation Conformity.'' In 
addition on January 12, 2015, the Utah Division of Air Quality (UDAQ) 
made the proposed TSD available for public comment and extended the 
Rule R307-311 public comment period to February 12, 2015. EPA notes 
that included with the state's administrative documentation for this 
SIP and Rule revision was a letter memorandum, DAQ-010-15 dated 
February 19, 2015, from Bryce Bird, Director, UDAQ to the UAQB. This 
letter memorandum indicated that a public comment period was held from 
January 1, 2015 through February 12, 2015 regarding the proposed Rule 
R307-311 SIP revisions. The UDAQ February 19, 2015 letter memorandum 
noted that no public comments were received on the proposed rule R307-
311, but that EPA did comment on the TSD. UDAQ summarized and responded 
to EPA's comments in its February 19, 2015 letter memorandum to the 
UAQB. In addition, UDAQ noted that no public hearings were requested. 
In consideration of the February 19, 2015 UDAQ letter memorandum, the 
UAQB subsequently adopted the proposed Rule R307-311, and a revised 
TSD, on March 4, 2015. The SIP Rule revision became state effective on 
March 5, 2015 and was submitted by the Governor to EPA by a letter 
dated March 9, 2015. By a subsequent letter dated March 11, 2015, Bryce 
Bird, Director, UDAQ submitted the necessary administrative 
documentation that supported the Governor's submittal.
    We have evaluated Utah's March 9, 2015 SIP submittal and the March 
11, 2015 submitted administrative documentation and have determined 
that the state met the requirements for reasonable notice and public 
hearing under section 110(a)(2) of the CAA. By a letter dated March 24, 
2015, we advised the state that the SIP submittal was complete under 
section 110(k)(1)(B) of the Act, because the submittal met the minimum 
``completeness'' criteria found in 40 CFR part 51, Appendix V.

IV. EPA's Evaluation of Utah Rule R307-311

(a) Background and Purpose

    Transportation conformity is required by section 176 of the CAA to 
ensure that federally supported highway and transit project activities 
are consistent with (``conform to'') the purpose of a SIP. Conformity 
to the purpose of the SIP means that transportation activities will not 
cause new air quality violations, worsen existing violations, or delay 
timely attainment of the national ambient air quality standards 
(NAAQS). EPA's transportation conformity rule establishes the criteria 
and procedures for determining whether transportation activities 
conform to the state air quality plan.
    One key provision of EPA's transportation conformity rule (see 40 
CFR part 93, subpart A) requires a demonstration that emissions from 
the RTP and TIP are consistent with the MVEB in the applicable SIP (40 
CFR 93.118 and 93.124). The transportation conformity MVEB is defined 
as the level of on-road mobile source emissions relied upon in the SIP 
to attain or maintain compliance with the NAAQS in the nonattainment or 
maintenance area.
    In this particular instance, the NAAQS involved is PM10, 
the nonattainment area is Utah County, the

[[Page 28195]]

MVEBs involve direct emissions of PM10 and NOX, 
the latter as a precursor to the formation of PM10, and the 
applicable SIP is the EPA-approved Utah PM10 attainment 
plan, as updated on December 23, 2002 (67 FR 78181). The approved 
PM10 attainment plan contains (among other things) an 
attainment demonstration for Utah County that sets PM10 and 
NOX MVEBs.
    Transportation conformity is demonstrated when future year's 
projected on-road mobile source's emissions, for a particular pollutant 
or precursor, are estimated to be at or below the on-road motor 
vehicle's emissions budget for that pollutant or precursor in the 
applicable SIP. For the PM10 NAAQS for Utah County, 
conformity must be demonstrated separately for the PM10 and 
NOX MVEBs established in the Utah County PM10 
attainment demonstration. However, emissions can be traded between the 
PM10 and NOX budgets if there is an approved rule 
in the SIP that establishes appropriate mechanisms for such trades. See 
40 CFR 93.124(b).
    Currently, the Utah SIP does not contain an approved rule that 
establishes an appropriate mechanism for trading of emissions between 
the PM10 and NOX MVEBs for Utah County. The EPA 
notes, however, that we previously approved a Utah Rule (R307-310) that 
allows trading of emissions between the PM10 and 
NOX MVEBs for another PM10 nonattainment area in 
Utah, Salt Lake County. 67 FR 44065 (July 1, 2002). For Utah County, 
the state has developed a new Rule R307-311, very similar to that for 
Salt Lake County, which establishes an on-road mobile source emissions 
trading mechanism that; (1) involves only PM10 and 
NOX MVEBs from the PM10 attainment demonstration 
SIP, (2) allows trading in only one direction from the PM10 
budget to the NOX budget on a one-to-one basis, (3) applies 
only to transportation conformity determinations in Utah County in 
conjunction with the PM10 attainment demonstration SIP, and 
(4) is pursuant to 40 CFR part 93, subpart A.

(b) Utah Rule R307-311 Description

    An overview of all portions of the state's new Rule R307-311 is 
provided below:
    1. R307-311 is entitled ``Utah County: Trading of Emission Budgets 
for Transportation Conformity.''
    2. R307-311-1 ``Purpose.'' The stated purpose of this new rule is:
    This rule establishes the procedures that may be used to trade a 
portion of the primary PM10 budget when demonstrating that a 
transportation plan, transportation improvement program, or project 
conforms with the motor vehicle emissions budgets in the Utah County 
portion of Section IX, Part A of the State Implementation Plan, ``Fine 
Particulate Matter (PM10).
    3. R307-311-2. ``Definitions.'' This section provides applicable 
definitions:
    The definitions contained in 40 CFR 93.101, effective as of the 
date referenced in R307-101-3,\1\ are incorporated into this rule by 
reference. The following additional definitions apply to this rule.
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    \1\ R307-101-3 is approved into the Utah SIP and reflects a date 
of July 1, 2013 for incorporation by reference of federal rules.
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    ``Budget'' means the motor vehicle emission projections used in the 
attainment demonstration in the Utah County portion of Section IX, Part 
A of the State Implementation Plan, ``Fine Particulate Matter 
(PM10).
    ``NOX'' means oxides of nitrogen.
    ``Primary PM10'' means PM10 that is emitted 
directly by a source. Primary PM10 does not include 
particulate matter that is formed when gaseous emissions undergo 
chemical reactions in the ambient air.
    ``Transportation Conformity'' means a demonstration that a 
transportation plan, transportation improvement program, or project 
conforms with the emissions budgets in a state implementation plan, as 
outlined in 40 CFR, Chapter 1, Part 93; \2\ Determining Conformity of 
Federal Actions to State or Federal Implementation Plans.
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    \2\ EPA notes this is applicable to projects not from a 
conforming RTP and TIP which must conform with the MVEBs. This 
clarification is only for those projects, and not projects from a 
conforming RTP and TIP. See 40 CFR 93.109(b) and 40 CFR 93.115(a).
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    4. R307-311-3. ``Applicability''. This portion of the rule defines 
its applicability. EPA notes that this rule may only be applied to Utah 
County and only for PM10:
    (A) This rule applies to agencies responsible for demonstrating 
transportation conformity with the Utah County portion of Section IX, 
Part A of the State Implementation Plan, ``Fine Particulate Matter 
(PM10).
    (B) This rule does not apply to emission budgets from Section IX, 
Part C.6 of the State Implementation Plan, ``Carbon Monoxide 
Maintenance Provisions.
    5. R307-311-4. ``Trading Between Emission Budgets.'' This portion 
of the rule specifies the trading mechanism and provides the trading 
ratio of NOX and PM10. In our section V below, 
EPA evaluates the technical justification provided in the TSD for the 
trading ratio. In this section, we find that the rule language 
establishes an appropriate trading mechanism for the Utah County 
NOX and PM10 motor vehicle emission budgets:
    The agencies responsible for demonstrating transportation 
conformity are authorized to supplement the budget for NOX 
with a portion of the budget for primary PM10 for the 
purpose of demonstrating transportation conformity for NOX. 
The NOX budget shall be supplemented using the following 
procedures.
    (a) The metropolitan planning organization shall include the 
following information in the transportation conformity demonstration:
    (i) The budget for primary PM10 and NOX for 
each required year of the conformity demonstration, before trading 
allowed by this rule has been applied;
    (ii) The portion of the primary PM10 budget that will be 
used to supplement the NOX budget, specified in tons per day 
using a 1:1 ratio of primary PM10 to NOX, for 
each required year of the conformity demonstration;
    (iii) The remainder of the primary PM10 budget that will 
be used in the conformity demonstration for primary PM10, 
specified in tons per day for each required year of the conformity 
demonstration; and
    (iv) The budget for primary PM10 and NOX for 
each required year of the conformity demonstration after the trading 
allowed by this rule has been applied.
    (b) Transportation conformity for NOX shall be 
demonstrated using the NOX budget supplemented by a portion 
of the primary PM10 budget as described in (a)(ii). 
Transportation conformity for primary PM10 shall be 
demonstrated using the remainder of the primary PM10 budget 
described in (a)(iii).
    (c) The primary PM10 budget shall not be supplemented by 
using a portion of the NOX budget.

V. EPA's Evaluation of the Technical Support Document for R307-311

    The Governor's SIP revision submittal provided a TSD to support the 
new Rule R307-311 and address MVEB trading, as contemplated by 40 CFR 
93.124(b), for PM10 and NOX in Utah County.

a. Description

    PM10 is particulate matter with diameters smaller than 
10 micrometers. PM10 consists of solid and/or liquid 
particles of; (1) primary particles that are directly emitted 
particulate matter (PM) or PM that quickly condenses upon release, and 
(2) secondary particles which are PM that is formed in the atmosphere 
from gaseous

[[Page 28196]]

precursors. Important gaseous precursors to PM include sulfur dioxide 
(SO2) which converts to sulfate (SO4) particles, 
NOX which converts to nitrate (NO3) particles, 
volatile organic compounds (VOCs) some of which convert to secondary 
organic aerosols, and ammonia (NH3) which adds to the mass 
of sulfate PM and allows nitric acid to convert to PM10 in 
the form of ammonium nitrate.
    Currently in Utah County, the RTP and TIP must demonstrate 
conformity to the MVEBs for PM10 and NOX that 
were derived from the 2002 EPA-approved PM10 attainment 
demonstration SIP (see 67 FR 78181, December 23, 2002). Since the 
regulatory goal is to achieve and maintain attainment of the NAAQS and 
conformity related to total PM10, not individual components, 
it should not matter in the conformity analysis whether PM10 
consists of directly emitted (primary) PM10 or secondary 
nitrate PM10 formed in the atmosphere from precursor 
NOX gas emissions, provided the MVEBs for PM10 
and NOX are consistent with the SIP's demonstration of 
attainment. The state's TSD outlines the scientific rationale for why 
excess NOX motor vehicle emissions (above the NOX 
MVEB level) can be offset, on a 1 to 1 basis, with available motor 
vehicle PM10 emissions (below the PM10 MVEB 
level). The State's TSD explains why the provisions of Rule R307-311 
are considered conservative (i.e., protective of the environment) in 
that the Rule only allows a one-way direction trading of the MVEBs and 
a trading ratio of only 1 to 1.

b. What fraction of the NOX emissions in Utah County convert 
to PM10?

    The state's TSD describes how each ton of gaseous NOX 
that gets converted to PM10 creates more than a ton of 
PM10 because the molecular weight of ammonium nitrate 
PM10 is greater than the molecular weight of NOX 
gaseous emissions. Considering the ratio of the molecular weights of 
the NOX precursor gas and the resulting ammonium nitrate 
aerosol (PM10), the state notes that a ton of NOX 
that is converted from a gas to a particle can form as much as 1.74 
tons of PM10.
    However, not all NOX emissions are converted because it 
takes time to convert NOX to nitric acid (HNO3), 
which is the necessary gaseous precursor to ammonium nitrate 
PM10. These reactions generally occur at rates of 1 to 10 
percent per hour. It would take approximately at least 10 hours to 
fully convert to nitric acid. After this initial conversion, only a 
fraction of the gaseous nitric acid will condense as ammonium nitrate 
PM10, depending on equilibrium considerations. Finally, 
during the gas-to-particle conversion process, deposition will remove a 
significant amount of material. Throughout this process of 
NOX conversion to nitric acid, and then to PM10 
and deposition, an equivalent amount of directly emitted 
PM10 is having a much larger effect on the PM10 
concentration. Directly emitted PM10 has an effect on the 
ambient concentration immediately upon its release, while 
NOX emissions require hours to have an effect.
    From a historical perspective, the conversion of NOX to 
PM10 has been discussed at EPA since at least 1996. In our 
1996 proposed rule to revise the regulations for the Prevention of 
Significant Deterioration (PSD) and nonattainment New Source Review 
(NSR) programs, we discussed a proposed approach for interpollutant 
trading for PM10 offsets in the nonattainment NSR program:

    The conversion process may depend on several variables, 
including the availability of chemical reactants in the atmosphere 
for the conversion process, and the difference in mass between the 
PM10 precursor molecule and the PM10 particle 
that the precursor reacts to become. Another concern is that the 
rate of conversion of the precursor to PM10 may be so 
long that the precursor may not entirely convert to PM10 
within the same nonattainment area. Thus, there would be less 
counteracting effect and no net improvement to air quality in the 
area. Under the EPA's proposal, a source of a PM10 
precursor may offset its increased emissions with the same precursor 
type or PM10 (or a combination of the two). In this 
situation, a net improvement in air quality would be assured. At 
this point, however, the EPA is not proposing to allow offsetting 
among different types of PM10 precursors, or offsetting 
PM10 increases with reduction in PM10 
precursors, because the Agency does not now have a scientific basis 
to propose conversion factors. (61 FR 38305, July 23, 1996).

    These statements were cited in our 2002 proposed approval of the 
MVEB trading rule (R307-310) for Salt Lake County. 67 FR 21609 (May 1, 
2002).
    However, EPA has more recently issued guidance on interpollutant 
trading provisions for fine particulate matter (PM2.5) for 
offsets under the nonattainment NSR program. The guidance memorandum is 
entitled ``Revised Policy to Address Reconsideration of Interpollutant 
Trading Provisions for Fine Particles (PM2.5)'' and is dated 
July 21, 2011 (hereafter referred to as ``Revised 2011 Trading 
Policy''). The Revised 2011 Trading Policy states in part (page 3, 
fourth paragraph) that ``. . . states will be expected to develop 
separate PM2.5 precursor offset ratios that are demonstrated 
to be suitable for addressing the particular precursor's relationship 
with ambient PM2.5 concentrations for 24-hour averaging 
periods that are causing violations in that nonattainment area.'' And 
on page 4, first paragraph; ``. . . each ratio will need to be 
supported by modeling or other technical demonstration to show that 
such ratio is suitable for the particular PM2.5 
nonattainment area of concern . . .''
    Our Revised 2011 Trading Policy provides a general framework for 
such efforts, involving the following steps:
    1. Definition of the appropriate geographical area.
    2. Sensitivity runs with appropriate air quality models.
    3. Calculation of interpollutant ratios.
    4. Quality assurance of the results.
    To support Utah's rule R307-311, the UDAQ applied the above 
methodology to the Utah County 24-hour PM10 NAAQS 
nonattainment area. Although the Revised 2011 Trading Policy is 
specific to PM2.5 and nonattainment NSR offsets, and is 
nonbinding guidance, in this action we consider that the 
recommendations in the Revised 2011 Trading Policy provide a suitable 
approach for a technical demonstration that the trading ratio for Utah 
County for the PM10 and NOX MVEBs is appropriate 
under 40 CFR 93.124(b).
    The UDAQ states in the TSD that exceedances of the PM10 
24-hour NAAQS in Utah County are characterized by spikes in secondary 
aerosol formation under conditions of wintertime temperature inversions 
which prevent good atmospheric mixing and facilitate conversion of 
secondary PM10. The UDAQ also states that a high percentage 
of the PM10 monitored in Utah County, during winter episodes 
of elevated concentration, lies also within the PM2.5 
fraction. EPA also notes that the 2002 Utah County PM10 SIP 
revision identified both NOX and SO2 as 
precursors to the formation of PM10.
    The TSD for Rule R307-311 identifies that parts of Utah County (the 
valley regions, western area of the County) are also designated as 
nonattainment for the 2006 24-hour PM2.5 NAAQS (74 FR 58688, 
November 13, 2009). To meet the requirements set out in subparts 1 and 
4 of Part D, title I of the CAA, the UDAQ developed a moderate area 
attainment plan for Utah County that (among other things) contained a 
demonstration that attainment of the 24-hour PM2.5 standards 
by the applicable attainment date for moderate areas, December 31, 
2015, is impracticable (hereafter ``PM2.5 Impracticability 
Demonstration''). This

[[Page 28197]]

attainment plan was submitted by the Governor to EPA on December 16, 
2014. The air quality modeling for the PM2.5 
Impracticability Demonstration was conducted by UDAQ using the 
Community Multi-Scale Air Quality model (CMAQ). CMAQ is also capable of 
determining the relative importance of NOX and 
PM10 in contributing to PM10 nonattainment.
    The emission inventories that were developed by UDAQ for the Utah 
County PM2.5 Impracticability Demonstration included 
PM2.5, SO2, NOX, VOC, Ammonia and 
PM10.\3\ As PM10 was inventoried for the 
PM2.5 Impracticability Demonstration, this allowed CMAQ 
model sensitivity runs to be made for the purpose of evaluating and 
supporting the MVEB trading provisions in Rule R307-311. The UDAQ's 
methodology employed the CMAQ model, as developed for Utah County, with 
a substitution of PM10 emissions for PM2.5. The 
UDAQ also notes in the Rule R307-311 TSD that the CMAQ model was re-
validated with respect to PM10 emissions data from the 
appropriate episode period prior to making the sensitivity runs (refer 
to Appendix A of the TSD).
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    \3\ We are not acting today on any portion of the state's 
December 16, 2014 submittal, including the PM2.5 
Impracticability Demonstration and the emission inventories.
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    Having made these adjustments to the CMAQ model, UDAQ ran the model 
to generate a time-series plot (refer to Appendix A of the TSD). The 
UDAQ determined that the ratio of NOX to PM10 
equivalence was 5.702 to one. Since this ratio is considerably greater 
than 1:1, the UDAQ concluded that reducing primary PM10 is 
more beneficial than reducing NOX for improving Utah 
County's air quality with respect to PM10. The EPA has 
evaluated this additional sensitivity modeling information and has 
concluded that it provides an adequate technical demonstration to 
support the MVEB trading provisions in Rule R307-311. Based on the 
demonstration, we also conclude that Rule R307-311 establishes an 
appropriate trading ratio, and that under Rule R307-311, there will not 
be adverse impacts to the overall ambient 24-hour PM10 
concentrations within Utah County.
    With regard to ambient 24-hour PM10 concentrations 
within Utah County, we have also evaluated the current (state-
certified) 2011 through 2013 PM10 ambient air quality 
monitoring data for Utah County in EPA's Air Quality System (AQS), 
EPA's repository for the Nation's ambient air quality data. EPA's 
guidance for the calculation of 24-hour PM10 design value 
concentrations provide four techniques.\4\ Our guidance's ``Table 
Lookup'' method shows a 2011 through 2013 PM10 design value 
concentration as 149[mu]m\3\ at the North Provo monitor and 124[mu]m\3\ 
at the Lindon monitor. These values, however, contain certain data 
quality issues such as missing days of monitoring data and zero reading 
days. We believe that if the statistical method from our guidance, 
``Using the empirical frequency distribution of several years of the 
data (graphical estimation),'' is used, in this particular case it 
provides a more accurate representation of the monitoring data.\5\ When 
using this statistical/graphic approach, the North Provo monitor then 
has a 2011 through 2013 PM10 design value concentration of 
133.5 [micro]m\3\ and the Lindon monitor has a 2011 through 2013 design 
value concentration of 118.7 [micro]m\3\. However, EPA notes that 
regardless of the methodology used, Utah County continues to 
demonstrate attainment of the 24-hour PM10 NAAQS.
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    \4\ PM10 SIP Development Guideline, EPA-450/2-86-001, 
June 1987, section 6.3; pages 6-3 through 6-8. The cited portions of 
this guidance are available in the docket for this action; the 
entire document is available online at http://www.epa.gov/ttn/caaa/t1/memoranda/pm10sip_dev_guide.pdf.
    \5\ Memorandum to File entitled ``Utah PM10 24-hour 
Design Concentrations,'' Richard M. Payton, USEPA Region 8, dated 
April 22, 2015.
---------------------------------------------------------------------------

c. Impact of the PM10 and NOX MVEB Trading Rule on Other Pollutants; 
EPA's Evaluation of Utah's Information Regarding the Provisions of 
Section 110(1) of the Clean Air Act

    Section 110(1) of the CAA states that a SIP revision cannot be 
approved if the revision would interfere with any applicable 
requirement concerning attainment and reasonable further progress 
towards attainment of a NAAQS or any other applicable requirement of 
the CAA. EPA's evaluation above shows that this SIP revision will not 
interfere with attainment of the PM10 NAAQS.
    In addition to being a designated nonattainment area for 
PM10, Utah County is also designated as nonattainment for 
the 2006 24-hour PM2.5 NAAQS. The city of Provo, in Utah 
County, is designated as an attainment/maintenance area for carbon 
monoxide (CO). These criteria pollutants, along with the 2008 8-hour 
ozone NAAQS and the 1-hour nitrogen dioxide (NO2) NAAQS, 
were evaluated by the state in the TSD for potential collateral impacts 
from the implementation of the provisions of Rule R307-311.
1. PM2.5
    As discussed above, part of Utah County (the western portion) was 
designated by EPA as nonattainment for the 2006 24-hour 
PM2.5 NAAQS (74 FR 58688, November 13, 2009), and on 
December 16, 2014, the state submitted an attainment plan containing, 
among other things, the PM2.5 Impracticability 
Demonstration. As with PM10 (described above), UDAQ 
performed sensitivity runs using the CMAQ modeling information that was 
developed for the PM2.5 Impracticability Demonstration. This 
modeling exercise was performed in order to determine an equivalence 
ratio between NOX and PM2.5. The resulting ratio 
of NOX to PM2.5 was determined by the UDAQ to be 
13.09 to 1.0. Similar to the result for PM10, the ratio is 
greater than one to one, and illustrates that reducing primary 
PM2.5 is more beneficial than reducing the same quantity of 
NOX.
    However, Rule R307-311 provides for reductions in PM10, 
and generally speaking, a reduction in PM10 is not 
necessarily a reduction in PM2.5. So that the above 
PM2.5 to NOX ratio could support a determination 
that Rule R307-311 would not have an adverse impact on overall 
PM2.5 concentrations in Utah County, the UDAQ considered the 
physical make-up of PM10 emissions from on-road mobile 
sources in Utah County. The following table, presenting information 
from the TSD, considers PM emissions as they were inventoried for 
calendar year 2015 in the PM2.5 Impracticability 
Demonstration for the Utah County PM2.5 nonattainment area:

                              Table 1--Utah County; On-Road Mobile Source Emissions
                                            [In tons per day in 2015]
----------------------------------------------------------------------------------------------------------------
                                                                       PM10            PM2.5          %PM2.5
----------------------------------------------------------------------------------------------------------------
Road Dust.......................................................            3.95            0.99            25.1

[[Page 28198]]

 
Direct PM.......................................................            1.84            1.38            75.0
                                                                 -----------------------------------------------
    Total.......................................................            5.79            2.37            40.9
----------------------------------------------------------------------------------------------------------------

    As derived from the state's information and as presented in Table 1 
above, for every ton of PM10 emissions due to on-road mobile 
sources, 0.409 tons would be composed of PM2.5. The 
provisions of Rule R307-311 would allow a one-ton increase in 
NOX emissions that would be offset by a one-ton decrease in 
the PM10 emissions. Based on the information in the above 
table, the state concluded that a one-ton increase in NOX 
emissions would be offset by a 0.409-ton decrease in PM2.5 
emissions. To illustrate, using the 1:0.409 ratio and the equivalence 
ratio of 13.09:1 for NOX to PM2.5, a 13 ton 
increase in NOX emissions would equal a 1 ton increase of 
PM2.5 emissions. However, applying the 1 to 1 trading ratio 
with PM10 would then require a 13 ton PM10 
emissions decrease which is a 5.3 ton (13 x 0.409) PM2.5 
emissions decrease. This example results in a net 4.3 ton decrease in 
PM2.5 emissions.
    Based on this 1:0.409 ratio and the equivalence ratio of 13.09:1 
for NOX to PM2.5, the EPA can, therefore, agree 
with the state and conclude that Rule R307-311, with its requirements 
to allow the trading of the PM10 budget to the 
NOX budget in one direction only at a ratio of 1:1, would 
not have an adverse impact on overall ambient 24-hour PM2.5 
concentrations within Utah County.
    The EPA notes that additional supporting information was provided 
in the PM2.5 Impracticability Demonstration as it included 
an emission inventory of NOX emissions for calendar year 
2015. The PM2.5 Impracticability Demonstration notes that 
on-road mobile sources in Utah County are expected to account for 21.48 
tons per winter weekday in 2015. The on-road mobile sources emissions 
were calculated using EPA's Motor Vehicle Emission Simulator (MOVES) 
model and the MOVES2010a version. This estimate is greater than the 
combined sum of the 2020 MVEBs for both PM10 and 
NOX contained in the EPA-approved 2002 SIP revision. To 
demonstrate, even if the entire PM10 MVEB was traded to 
increase the NOX MVEB as a result of the application of Rule 
R307-311, the resulting total NOX emissions would still be 
less than the 2015 estimated NOX emissions contained in the 
PM2.5 Impracticability Demonstration.
2. Carbon Monoxide (CO)
    As noted previously, the Provo-Orem area is a CO attainment/
maintenance area (70 FR 66264, November 2, 2005). EPA notes that 
NOX emissions do not act as a precursor to carbon monoxide; 
therefore, EPA has concluded that the application of the provisions of 
R307-311 will not impact the Provo-Orem CO maintenance plan or 
attainment of the CO NAAQS. The state notes in the Rule R307-311 TSD 
that CO maintenance plan has its own CO MVEB which has been set at a 
level demonstrated to keep the Provo-Orem area in attainment with the 
CO standard. The provisions of Rule R307-311 do not change the 
maintenance plan's CO MVEB.
    For purposes of completeness, the state provided recent CO ambient 
air quality monitoring data in the Rule R307-311 TSD. These data have 
been excerpted by EPA and are provided in the table below:

                                 Table 2--CO 1-Hour and CO 8-Hour Design Values
----------------------------------------------------------------------------------------------------------------
                   Year                       Annual CO NAAQS  (1-hour, 35 ppm)        8-hour CO NAAQS (9 ppm)
----------------------------------------------------------------------------------------------------------------
Monitor location:                          North Provo:                             North Provo:
    2011.................................     3.2 ppm.............................     2.1 ppm
    2012.................................     2.8 ppm.............................     1.9 ppm
    2013.................................     2.9 ppm.............................     2.0 ppm
    Preliminary 2014.....................     2.8 ppm.............................     1.9 ppm
----------------------------------------------------------------------------------------------------------------

    As can be seen in Table 2 above, the Provo area continues to 
demonstrate compliance with both the CO Annual and CO 8-hour NAAQS.
3. Ozone
    The EPA notes that NOX emissions are a precursor to the 
formation of ground level ozone, PM2.5, and PM10. 
With regard to ozone, we also note that Utah County has never been 
designated as nonattainment for any applicable ozone NAAQS. The 
current, applicable ozone NAAQS is the 2008 8-hour ozone NAAQS and Utah 
County was designated by EPA as unclassifiable/attainment for that 
NAAQS (77 FR 30088, May 21, 2012). Thus, the state has not had to 
develop an ozone attainment plan or maintenance plan for Utah County.
    To assess the potential impacts to Utah County's continued 
attainment of the 2008 8-hour ozone NAAQS, EPA considered ozone ambient 
air quality monitoring data for Utah County and predicted future-year 
NOX emission reductions from motor vehicles.
    The state provided recent ozone air quality monitoring data in the 
Rule R307-311 TSD. EPA has excerpted that information from the TSD and 
presents those data in Table 3 below:

[[Page 28199]]



                                                        Table 3--8-Hour Ozone Design Values (DV)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                 8-hour ozone DV (NAAQS = 75                                 8-hour ozone DV (NAAQS = 75
              Year                      Monitor location                    ppb)                    Monitor location                    ppb)
--------------------------------------------------------------------------------------------------------------------------------------------------------
2011...........................  North Provo..................  67.7 ppb....................  Spanish Fork................  68.0 ppb
2012...........................  North Provo..................  70.7 ppb....................  Spanish Fork................  70.3 ppb
2013...........................  North Provo..................  73.0 ppb....................  Spanish Fork................  70.3 ppb
2014 (Preliminary).............  North Provo..................  73.0 ppb....................  Spanish Fork................  71.7 ppb
--------------------------------------------------------------------------------------------------------------------------------------------------------

    As can be seen in Table 3 above, Utah County continues to 
demonstrate compliance with 2008 8-hour ozone NAAQS.
    The provisions of Rule R307-311 would allow for an increase in the 
Utah County PM10 SIP's NOX MVEB. However, EPA 
believes that regardless of this potential increase in the 
NOX MVEB, overall future NOX emissions from 
mobile sources will significantly decrease not only in Utah County, but 
in the nation as a whole. On April 28, 2014, we published a final rule 
adopting new Tier 3 emission standards and fuel requirements for motor 
vehicles and for motor vehicle fuels (79 FR 23414).
    Our April 28, 2014 final rule included new Tier 3 emission 
standards to reduce exhaust and evaporative emissions from light-duty 
vehicles, light-duty trucks, and heavy-duty vehicles up to 14,000 
pounds Gross Vehicle Weight Rating. In addition, the final rule 
specified corresponding changes to in-use fuel requirements. The motor 
vehicle tailpipe standards include different phase-in schedules that 
vary by vehicle class, but generally phase-in between model years 2017 
to 2021 for light duty vehicles and up to 2025 for heavy duty vehicles. 
The vehicle emission standards combined with the reduction of gasoline 
sulfur content, which allows both current and new vehicle emission 
control systems to function at a higher pollutant removal efficiently, 
will significantly reduce motor vehicle emissions of NOX, 
VOCs, direct PM2.5, CO and air toxics. Compared to current 
vehicle and fuel standards, the non-methane organic gases (NMOG) and 
NOX, presented as NMOG+NOX, Tier 3 tailpipe 
standards for light-duty vehicles are estimated to show an 
approximately 80% reduction from today's fleet average. As both 
NOX and VOCs contribute to the formation of ground level 
ozone and secondary PM2.5, the EPA notes that these vehicle 
emission reductions will have a positive impact on all areas of the 
nation including Utah County. Additionally, we expect to see associated 
downward trends of CO, ozone, PM2.5 and PM10 
concentrations that will reflect the implementation of these fuel/
vehicle emission improvements. Based on these expected reductions in 
motor vehicle emissions of NOX, along with the monitoring 
data showing that Utah County is currently attaining the 2008 ozone 
NAAQS, we conclude that Rule R307-311 will not interfere with 
attainment of the ozone NAAQS.
4. NO2
    The EPA notes that NOX emissions, which contain 
NO2, are a precursor to the formation of ground level ozone, 
PM2.5, and PM10. We also note that Utah County 
was designated as unclassifiable/attainment for the new, more 
stringent, 2010 1-hour NO2 NAAQS (77 FR 9532, February 17, 
2012).
    To assess the potential impacts to Utah County's continued 
attainment of the 2010 1-hour NO2 NAAQS, as that version of 
the NO2 NAAQS is more constraining, EPA considered 
NO2 ambient air quality monitoring data for Utah County. The 
state provided recent NO2 air quality monitoring data in the 
Rule R307-311 TSD. EPA has excerpted that information from the TSD and 
presents those data in Table 4 below:

                    Table 4--NO2 1-Hour Design Values
------------------------------------------------------------------------
                                              NO2 NAAQS  (DV 1-hour 100
                   Year                                 ppb)
------------------------------------------------------------------------
Monitor location:                           North Provo:
  2011....................................     54.7 ppb
  2012....................................     58.0 ppb
  2013....................................     66.3 ppb
  Preliminary 2014........................     68.3 ppb
------------------------------------------------------------------------

    As can be seen in Table 4 above, Utah County continues to 
demonstrate compliance with 2010 1-hour NO2 NAAQS with 
values well below the level of the NAAQS. We, therefore, conclude that 
Rule R307-311 will not interfere with attainment of the 1-hour 
NO2 NAAQS.

d. Conclusion

    On the basis of the above EPA analyses, we have concluded that 
using a portion of the Utah County PM10 SIP's 
PM10 MVEB to offset or compensate for excess on-road mobile 
sources NOX emissions, on a one-to-one basis and in one 
direction only, continues to demonstrate attainment of the 
PM10 NAAQS and is conservative and justifiable. In addition, 
based on the information in the Rule R307-311 TSD, and as supplemented 
by information prepared by EPA, we have concluded that with the 
implementation of the provisions in Rule R307-311 there will not be 
adverse effects to the CO, PM2.5, 8-hour ozone, and 
NO2 1-hour NAAQS. These statements are with respect to the 
implementation of the provisions of Rule R307-311 by MAG when MAG 
performs a transportation conformity determination for its RTP and/or 
TIP.

VI. Consideration of Section 110(l) of the Clean Air Act

    Section 110(l) of the CAA states that a SIP revision cannot be 
approved if the revision would interfere with any applicable 
requirement concerning attainment and reasonable further progress 
towards attainment of a NAAQS or any other applicable requirement of 
the CAA. In view of the state's rule language for its new Rule R307-
311, our analyses presented above in section ``V. EPA's Evaluation of 
the Technical Support Document for R307-311'' with respect to 
PM10, PM2.5, ozone and NO2, and the 
fact that NOX has less impact on a per ton basis than 
primary PM10 emissions in Utah County, we have concluded 
there will be a net benefit on ambient air concentrations of 
PM10 when excess NOX emissions are offset on a 
one to one basis. Therefore, implementation of the provisions of Rule 
R307-311 will allow the continued demonstration of attainment of the 
PM10 NAAQS in Utah County and is conservative and 
justifiable. We have also concluded there will be no adverse impact on 
any other NAAQS or applicable requirement of the CAA. Therefore, our 
approval of the State's Rule R307-311 is consistent with section 110(l) 
of the CAA.

VII. Final Action

    The EPA is publishing this rule without prior proposal because the 
Agency views the Governor of Utah's March 9, 2015 submitted SIP 
revisions for Utah's Rule R307-311 and the Rule's associated TSD as a 
noncontroversial amendment and anticipates no adverse

[[Page 28200]]

comments. However, in the Proposed Rules section of today's Federal 
Register publication, EPA is publishing a separate document that will 
serve as the proposal to approve the SIP revision if adverse comments 
are filed. This rule will be effective July 17, 2015 without further 
notice unless the Agency receives adverse comments by June 17, 2015. If 
the EPA receives adverse comments, the EPA will publish a timely 
withdrawal in the Federal Register informing the public that the rule 
will not take effect. The EPA will address all public comments in a 
subsequent final rule based on the proposed rule. The EPA will not 
institute a second comment period on this action. Any parties 
interested in commenting must do so at this time. Please note that if 
the EPA receives adverse comment on an amendment, paragraph, or section 
of this rule and if that provision may be severed from the remainder of 
the rule, the EPA may adopt as final those provisions of the rule that 
are not the subject of an adverse comment.

VIII. Incorporation by Reference

    In this rule, the EPA is finalizing regulatory text that includes 
incorporation by reference. In accordance with requirements of 1 CFR 
51.5, the EPA is finalizing the incorporation by reference of the Utah 
SIP materials and rules described in the amendments to 40 CFR part 52 
set forth below. The EPA has made, and will continue to make, these 
documents generally available electronically through 
www.regulations.gov and/or in hard copy at the appropriate EPA office 
(see the ADDRESSES section of this rule's preamble for more 
information).

IX. Statutory and Executive Order Reviews

    Under Executive Order 12866 (58 FR 51735, October 4, 1993), this 
action is not a ``significant regulatory action'' and therefore is not 
subject to review by the Office of Management and Budget. For this 
reason, this action is also not subject to Executive Order 13211, 
``Actions Concerning Regulations That Significantly Affect Energy 
Supply, Distribution, or Use'' (66 FR 28355, May 22, 2001). This action 
merely approves state law as meeting Federal requirements and imposes 
no additional requirements beyond those imposed by state law. 
Accordingly, the Administrator certifies that this rule will not have a 
significant economic impact on a substantial number of small entities 
under the Regulatory Flexibility Act (5 U.S.C. 601 et seq). Because 
this rule approves pre-existing requirements under state law and does 
not impose any additional enforceable duty beyond that required by 
state law, it 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).
    The SIP is not approved to apply on any Indian reservation land or 
in any other area where EPA or an Indian tribe has demonstrated that a 
tribe has jurisdiction. In those areas of Indian country, the rule does 
not have tribal implications and will not impose substantial direct 
costs on tribal governments or preempt tribal law as specified by 
Executive Order 13175 (65 FR 67249, November 9, 2000). This action also 
does not have Federalism implications because it does not have 
substantial direct effects on the states, on the relationship between 
the national government and the states, or on the distribution of power 
and responsibilities among the various levels of government, as 
specified in Executive Order 13132 (64 FR 43255, August 10, 1999). This 
action merely approves a state rule implementing a Federal standard, 
and does not alter the relationship or the distribution of power and 
responsibilities established in the Clean Air Act. This rule also is 
not subject to Executive Order 13045 ``Protection of Children from 
Environmental Health Risks and Safety Risks'' (62 FR 19885, April 23, 
1997), because it approves a state rule implementing a Federal 
standard.
    In reviewing SIP submissions, EPA's role is to approve state 
choices, provided that they meet the criteria of the Clean Air Act. In 
this context, in the absence of a prior existing requirement for the 
state to use voluntary consensus standards (VCS), EPA has no authority 
to disapprove a SIP submission for failure to use VCS. It would thus be 
inconsistent with applicable law for EPA, when it reviews a SIP 
submission; to use VCS in place of a SIP submission that otherwise 
satisfies the provisions of the Clean Air Act. Thus, the requirements 
of section 12(d) of the National Technology Transfer and Advancement 
Act of 1995 (15 U.S.C. 272 note) do not apply. This rule does not 
impose an information collection burden under the provisions of the 
Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq).
    The Congressional Review Act, 5 U.S.C. 801 et seq, as added by the 
Small Business Regulatory Enforcement Fairness Act of 1996, generally 
provides that before a rule may take effect, the agency promulgating 
the rule must submit a rule report, which includes a copy of the rule, 
to each House of the Congress and to the Comptroller General of the 
United States. EPA will submit a report containing this rule and other 
required information to the U.S. Senate, the U.S. House of 
Representatives, and the Comptroller General of the United States prior 
to publication of the rule in the Federal Register. A major rule cannot 
take effect until 60 days after it is published in the Federal 
Register. This action is not a ``major rule'' as defined by 5 U.S.C. 
804(2).
    Under section 307(b)(1) of the Clean Air Act, petitions for 
judicial review of this action must be filed in the United States Court 
of Appeals for the appropriate circuit by July 17, 2015. Filing a 
petition for reconsideration by the Administrator of this final rule 
does not affect the finality of this action for the purposes of 
judicial review nor does it extend the time within which a petition for 
judicial review may be filed, and shall not postpone the effectiveness 
of such rule or action. Parties with objections to this direct final 
rule are encouraged to file a comment in response to the parallel 
notice of proposed rulemaking for this action published in the proposed 
rules section of today's Federal Register, rather than file an 
immediate petition for judicial review of this direct final rule, so 
that EPA can withdraw this direct final rule and address the comment in 
the proposed rulemaking. This action may not be challenged later in 
proceedings to enforce its requirements. (See CAA section 307(b)(2).)

List of Subjects in 40 CFR Part 52

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

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

    Dated: May 1, 2015.
Shaun L. McGrath,
Regional Administrator, Region 8.

    40 CFR part 52 is amended to read as follows:

PART 52 [AMENDED]

0
1. The authority citation for Part 52 continues to read as follows:

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

Subpart TT--Utah

0
2. Section 52.2320 is amended by adding paragraph (c)(79) to read as 
follows:

[[Page 28201]]

Sec.  52.2320  Identification of plan.

* * * * *
    (c) * * *
    (79) Revisions to the Utah State Implementation Plan involving Utah 
Rule R307-311; Utah County: Trading of Emission Budgets for 
Transportation Conformity. The Utah Air Quality Board adopted this SIP 
revision on March 4, 2015, it became state effective on March 5, 2015, 
and was submitted by the Governor to EPA by a letter dated March 9, 
2015.
    (i) Incorporation by reference.
    (A) Utah Rules R307, Environmental Quality, Air Quality, R307-311, 
Utah County: Trading of Emission Budgets for Transportation Conformity. 
Effective March 5, 2015, as proposed in the Utah State Bulletin on 
January 1, 2015 and published on April 1, 2015 as effective.

[FR Doc. 2015-11784 Filed 5-15-15; 8:45 am]
 BILLING CODE 6560-50-P



                                                                      Federal Register / Vol. 80, No. 95 / Monday, May 18, 2015 / Rules and Regulations                                           28193

                                                     (ii) After the season, provide written               ENVIRONMENTAL PROTECTION                              should be made for deliveries of boxed
                                                  documentation of required evaluation                    AGENCY                                                information.
                                                  information to the Federal fishery                                                                               Instructions: Direct your comments to
                                                  manager including, but not limited to,                  40 CFR Part 52                                        Docket ID No. EPA–R08–OAR–2015–
                                                  persons or households operating the                     [EPA–R08–OAR–2015–0227; FRL–9927–68–                  0227. EPA’s policy is that all comments
                                                  gear, hours of operation, and number of                 Region 8]                                             received will be included in the public
                                                  each species caught and retained or                                                                           docket without change and may be
                                                  released.                                               Approval and Promulgation of Air                      made available online at http://
                                                     (3) The gillnet owner (organization)                 Quality Implementation Plans; State of                www.regulations.gov, including any
                                                  may operate the net for subsistence                     Utah; Utah County—Trading of Motor                    personal information provided, unless
                                                  purposes on behalf of residents of                      Vehicle Emission Budgets for PM10                     the comment includes information
                                                  Ninilchik by requesting a subsistence                   Transportation Conformity                             claimed to be Confidential Business
                                                  fishing permit that:                                                                                          Information (CBI) or other information
                                                     (i) Identifies a person who will be                  AGENCY: Environmental Protection
                                                                                                                                                                whose disclosure is restricted by statute.
                                                  responsible for fishing the gillnet;                    Agency.
                                                                                                                                                                Do not submit information that you
                                                     (ii) Includes provisions for recording               ACTION: Direct final rule.
                                                                                                                                                                consider to be CBI or otherwise
                                                  daily catches, the household to whom                                                                          protected through http://
                                                  the catch was given, and other                          SUMMARY:   The Environmental Protection
                                                                                                          Agency (EPA) is taking direct final                   www.regulations.gov or email. The
                                                  information determined to be necessary                                                                        http://www.regulations.gov Web site is
                                                  for effective resource management by                    action to approve a State
                                                                                                          Implementation Plan (SIP) revision                    an ‘‘anonymous access’’ system, which
                                                  the Federal fishery manager.                                                                                  means EPA will not know your identity
                                                     (4) Fishing will be allowed from June                submitted by the State of Utah. On
                                                                                                          March 9, 2015, the Governor of Utah                   or contact information unless you
                                                  15 through August 15 on the Kenai
                                                                                                          submitted a revision to the Utah SIP,                 provide it in the body of your comment.
                                                  River unless closed or otherwise
                                                                                                          adding a new rule regarding trading of                If you send an email comment directly
                                                  restricted by Federal special action.
                                                                                                          motor vehicle emission budgets (MVEB)                 to EPA, without going through http://
                                                     (5) Salmon taken in the gillnet fishery
                                                                                                          for Utah County. The rule allows trading              www.regulations.gov, your email
                                                  will be included as part of the dip net/
                                                                                                          from the motor vehicle emissions                      address will be automatically captured
                                                  rod and reel fishery annual total harvest
                                                                                                          budget for primary particulate matter of              and included as part of the comment
                                                  limits for the Kenai River and as part of
                                                                                                          10 microns or less in diameter (PM10) to              that is placed in the public docket and
                                                  dip net/rod and reel household annual
                                                                                                          the motor vehicle emissions budget for                made available on the Internet. If you
                                                  limits of participating households.
                                                     (6) Fishing for each salmon species                  nitrogen oxides (NOX), which is a PM10                submit an electronic comment, EPA
                                                  will end and the fishery will be closed                 precursor. The resulting motor vehicle                recommends that you include your
                                                  by Federal special action prior to                      emissions budgets for NOX and PM10                    name and other contact information in
                                                  regulatory end dates if the annual total                may then be used to demonstrate                       the body of your comment and with any
                                                  harvest limit for that species is reached               transportation conformity with the SIP.               disk or CD–ROM you submit. If EPA
                                                  or superseded by Federal special action.                The EPA is taking this action under                   cannot read your comment due to
                                                                                                          section 110 of the Clean Air Act (CAA).               technical difficulties and cannot contact
                                                  *       *     *     *    *                                                                                    you for clarification, EPA may not be
                                                     (13) * * *                                           DATES: This rule is effective on July 17,
                                                     (xiii) * * *                                         2015 without further notice, unless EPA               able to consider your comment.
                                                     (E) Fishing nets must be checked at                  receives adverse comment by June 17,                  Electronic files should avoid the use of
                                                  least twice each day. The total annual                  2015. If adverse comment is received,                 special characters, any form of
                                                  guideline harvest level for the Stikine                 EPA will publish a timely withdrawal of               encryption, and be free of any defects or
                                                  River fishery is 125 Chinook, 600                       the direct final rule in the Federal                  viruses. For additional instructions on
                                                  Sockeye, and 400 Coho salmon. All                       Register informing the public that the                submitting comments, go to Section I,
                                                  salmon harvested, including                             rule will not take effect.                            General Information of the
                                                  incidentally taken salmon, will count                                                                         SUPPLEMENTARY INFORMATION section of
                                                                                                          ADDRESSES: Submit your comments,
                                                  against the guideline for that species.                                                                       this document.
                                                                                                          identified by Docket ID No. EPA–R08–
                                                  *       *     *     *    *                              OAR–2015–0227, by one of the                             Docket: All documents in the docket
                                                     (xx) The Klawock River drainage is                   following methods:                                    are listed in the http://
                                                  closed to the use of seines and gillnets                   • http://www.regulations.gov. Follow               www.regulations.gov index. Although
                                                  during July and August.                                 the on-line instructions for submitting               listed in the index, some information is
                                                     (xxi) The Federal public waters in the               comments.                                             not publicly available, e.g., CBI or other
                                                  Makhnati Island area, as defined in                        • Email: russ.tim@epa.gov                          information whose disclosure is
                                                  § ll.3(b)(5) are closed to the harvest of                  • Fax: (303) 312–6064 (please alert                restricted by statute. Certain other
                                                  herring and herring spawn except by                     the individual listed in the FOR FURTHER              material, such as copyrighted material,
                                                  Federally qualified users.                              INFORMATION CONTACT if you are faxing                 will be publicly available only in hard
                                                                                                          comments).                                            copy. Publicly-available docket
                                                    Dated: April 29, 2015.
                                                                                                             • Mail: Carl Daly, Director, Air                   materials are available either
                                                  Eugene R. Peltola, Jr.,                                                                                       electronically in http://
                                                                                                          Program, EPA, Region 8, Mailcode
                                                  Assistant Regional Director, U.S. Fish and              8P–AR, 1595 Wynkoop Street, Denver,                   www.regulations.gov or in hard copy at
asabaliauskas on DSK5VPTVN1PROD with RULES




                                                  Wildlife Service, Acting Chair, Federal
                                                                                                          Colorado 80202–1129.                                  the Air Program, EPA, Region 8,
                                                  Subsistence Board.
                                                                                                             • Hand Delivery: Carl Daly, Director,              Mailcode 8P–AR, 1595 Wynkoop Street,
                                                    Dated: April 29, 2015.                                Air Program, EPA, Region 8, Mailcode                  Denver, Colorado 80202–1129. EPA
                                                  Thomas Whitford,                                        8P–AR, 1595 Wynkoop Street, Denver,                   requests that if at all possible, you
                                                  Subsistence Program Leader, USDA—Forest                 Colorado 80202–1129. Such deliveries                  contact the individual listed in the FOR
                                                  Service.                                                are only accepted Monday through                      FURTHER INFORMATION CONTACT section to
                                                  [FR Doc. 2015–11907 Filed 5–15–15; 8:45 am]             Friday, 8:00 a.m. to 4:30 p.m., excluding             view the hard copy of the docket. You
                                                  BILLING CODE 3410–11–P; 4310–55–P                       federal holidays. Special arrangements                may view the hard copy of the docket


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                                                  28194               Federal Register / Vol. 80, No. 95 / Monday, May 18, 2015 / Rules and Regulations

                                                  Monday through Friday, 8:00 a.m. to                       g. Explain your views as clearly as                 did comment on the TSD. UDAQ
                                                  4:00 p.m., excluding Federal holidays.                  possible, avoiding the use of profanity               summarized and responded to EPA’s
                                                  FOR FURTHER INFORMATION CONTACT: Tim                    or personal threats.                                  comments in its February 19, 2015 letter
                                                  Russ, Air Program, EPA, Region 8,                         h. Make sure to submit your                         memorandum to the UAQB. In addition,
                                                  Mailcode 8P–AR, 1595 Wynkoop Street,                    comments by the comment period                        UDAQ noted that no public hearings
                                                  Denver, Colorado 80202–1129, (303)                      deadline identified.                                  were requested. In consideration of the
                                                  312–6479, russ.tim@epa.gov.                             II. Background                                        February 19, 2015 UDAQ letter
                                                                                                                                                                memorandum, the UAQB subsequently
                                                  SUPPLEMENTARY INFORMATION:                                 In this action, we are approving and               adopted the proposed Rule R307–311,
                                                  Table of Contents                                       soliciting public comment regarding the               and a revised TSD, on March 4, 2015.
                                                                                                          Governor’s March 9, 2015, submittal of                The SIP Rule revision became state
                                                  I. General Information                                  Utah’s new Rule R307–311 for adoption
                                                  II. Background
                                                                                                                                                                effective on March 5, 2015 and was
                                                                                                          into the Utah SIP. The rule will allow                submitted by the Governor to EPA by a
                                                  III. What was the State’s process?                      certain trading of MVEBs for the
                                                  IV. EPA’s Evaluation of Utah Rule R307–311                                                                    letter dated March 9, 2015. By a
                                                                                                          purposes of transportation conformity                 subsequent letter dated March 11, 2015,
                                                  V. EPA’s Evaluation of the Technical Support
                                                       Document for R307–311                              for PM10 for Utah County. Once                        Bryce Bird, Director, UDAQ submitted
                                                  VI. Consideration of Section 110(l) of the              approved by EPA, the Mountainland                     the necessary administrative
                                                       Clean Air Act                                      Association of Governments (MAG) will                 documentation that supported the
                                                  VII. Final Action                                       then be able to use the provisions of                 Governor’s submittal.
                                                  VIII. Incorporation by Reference                        Rule R307–311 when MAG performs a                        We have evaluated Utah’s March 9,
                                                  IX. Statutory and Executive Order Reviews               transportation conformity determination               2015 SIP submittal and the March 11,
                                                  I. General Information                                  for its Regional Transportation Plan                  2015 submitted administrative
                                                                                                          (RTP) and/or Transportation                           documentation and have determined
                                                     1. Submitting CBI. Do not submit CBI                 Improvement Program (TIP).                            that the state met the requirements for
                                                  to EPA through http://                                     The above SIP action that was
                                                                                                                                                                reasonable notice and public hearing
                                                  www.regulations.gov or email. Clearly                   adopted by the Utah Air Quality Board
                                                                                                                                                                under section 110(a)(2) of the CAA. By
                                                  mark the part or all of the information                 (UAQB), and subsequently submitted to
                                                                                                                                                                a letter dated March 24, 2015, we
                                                  that you claim to be CBI. For CBI                       EPA by the Governor of Utah for
                                                                                                                                                                advised the state that the SIP submittal
                                                  information in a disk or CD–ROM that                    approval, is discussed in greater detail
                                                                                                                                                                was complete under section 110(k)(1)(B)
                                                  you mail to EPA, mark the outside of the                in sections III, IV, and V below. We also
                                                                                                                                                                of the Act, because the submittal met
                                                  disk or CD–ROM as CBI and then                          discuss the state’s associated technical
                                                                                                                                                                the minimum ‘‘completeness’’ criteria
                                                  identify electronically within the disk or              support document (TSD), which gives
                                                                                                                                                                found in 40 CFR part 51, Appendix V.
                                                  CD–ROM the specific information that                    technical information to support new
                                                  is claimed as CBI. In addition to one                   Rule R307–311.                                        IV. EPA’s Evaluation of Utah Rule
                                                  complete version of the comment that                                                                          R307–311
                                                                                                          III. What was the State’s process?
                                                  includes information claimed as CBI, a                                                                        (a) Background and Purpose
                                                  copy of the comment that does not                          Sections 110(a)(2) and 110(l) of the
                                                  contain the information claimed as CBI                  CAA requires that a state provide                        Transportation conformity is required
                                                  must be submitted for inclusion in the                  reasonable notice and public hearing                  by section 176 of the CAA to ensure that
                                                  public docket. Information so marked                    before adopting a SIP revision and                    federally supported highway and transit
                                                  will not be disclosed except in                         submitting it to us. More detailed                    project activities are consistent with
                                                  accordance with procedures set forth in                 requirements for notice and public                    (‘‘conform to’’) the purpose of a SIP.
                                                  40 CFR part 2.                                          hearing are set out in 40 CFR 51.102.                 Conformity to the purpose of the SIP
                                                     2. Tips for Preparing Your Comments.                    On December 4, 2014 the UAQB                       means that transportation activities will
                                                  When submitting comments, remember                      proposed for public comment                           not cause new air quality violations,
                                                  to:                                                     amendments to the Utah SIP for Utah                   worsen existing violations, or delay
                                                                                                          Air Quality Rule R307–311; ‘‘Utah                     timely attainment of the national
                                                     a. Identify the rulemaking by docket
                                                                                                          County: Trading of Emission Budgets for               ambient air quality standards (NAAQS).
                                                  number and other identifying
                                                                                                          Transportation Conformity.’’ In addition              EPA’s transportation conformity rule
                                                  information (subject heading, Federal
                                                                                                          on January 12, 2015, the Utah Division                establishes the criteria and procedures
                                                  Register date and page number).
                                                                                                          of Air Quality (UDAQ) made the                        for determining whether transportation
                                                     b. Follow directions—The agency may                  proposed TSD available for public                     activities conform to the state air quality
                                                  ask you to respond to specific questions                comment and extended the Rule R307–                   plan.
                                                  or organize comments by referencing a                   311 public comment period to February                    One key provision of EPA’s
                                                  Code of Federal Regulations (CFR) part                  12, 2015. EPA notes that included with                transportation conformity rule (see 40
                                                  or section number.                                      the state’s administrative                            CFR part 93, subpart A) requires a
                                                     c. Explain why you agree or disagree;                documentation for this SIP and Rule                   demonstration that emissions from the
                                                  suggest alternatives and substitute                     revision was a letter memorandum,                     RTP and TIP are consistent with the
                                                  language for your requested changes.                    DAQ–010–15 dated February 19, 2015,                   MVEB in the applicable SIP (40 CFR
                                                     d. Describe any assumptions and                      from Bryce Bird, Director, UDAQ to the                93.118 and 93.124). The transportation
                                                  provide any technical information and/                  UAQB. This letter memorandum                          conformity MVEB is defined as the level
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                                                  or data that you used.                                  indicated that a public comment period                of on-road mobile source emissions
                                                     e. If you estimate potential costs or                was held from January 1, 2015 through                 relied upon in the SIP to attain or
                                                  burdens, explain how you arrived at                     February 12, 2015 regarding the                       maintain compliance with the NAAQS
                                                  your estimate in sufficient detail to                   proposed Rule R307–311 SIP revisions.                 in the nonattainment or maintenance
                                                  allow for it to be reproduced.                          The UDAQ February 19, 2015 letter                     area.
                                                     f. Provide specific examples to                      memorandum noted that no public                          In this particular instance, the
                                                  illustrate your concerns, and suggest                   comments were received on the                         NAAQS involved is PM10, the
                                                  alternatives.                                           proposed rule R307–311, but that EPA                  nonattainment area is Utah County, the


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                                                                      Federal Register / Vol. 80, No. 95 / Monday, May 18, 2015 / Rules and Regulations                                            28195

                                                  MVEBs involve direct emissions of PM10                  plan, transportation improvement                        rule language establishes an appropriate
                                                  and NOX, the latter as a precursor to the               program, or project conforms with the                   trading mechanism for the Utah County
                                                  formation of PM10, and the applicable                   motor vehicle emissions budgets in the                  NOX and PM10 motor vehicle emission
                                                  SIP is the EPA-approved Utah PM10                       Utah County portion of Section IX, Part                 budgets:
                                                  attainment plan, as updated on                          A of the State Implementation Plan,                        The agencies responsible for
                                                  December 23, 2002 (67 FR 78181). The                    ‘‘Fine Particulate Matter (PM10).                       demonstrating transportation
                                                  approved PM10 attainment plan contains                     3. R307–311–2. ‘‘Definitions.’’ This                 conformity are authorized to
                                                  (among other things) an attainment                      section provides applicable definitions:                supplement the budget for NOX with a
                                                  demonstration for Utah County that sets                    The definitions contained in 40 CFR                  portion of the budget for primary PM10
                                                  PM10 and NOX MVEBs.                                     93.101, effective as of the date                        for the purpose of demonstrating
                                                     Transportation conformity is                         referenced in R307–101–3,1 are                          transportation conformity for NOX. The
                                                  demonstrated when future year’s                         incorporated into this rule by reference.               NOX budget shall be supplemented
                                                  projected on-road mobile source’s                       The following additional definitions                    using the following procedures.
                                                  emissions, for a particular pollutant or                apply to this rule.                                        (a) The metropolitan planning
                                                  precursor, are estimated to be at or                       ‘‘Budget’’ means the motor vehicle                   organization shall include the following
                                                  below the on-road motor vehicle’s                       emission projections used in the                        information in the transportation
                                                  emissions budget for that pollutant or                  attainment demonstration in the Utah                    conformity demonstration:
                                                  precursor in the applicable SIP. For the                County portion of Section IX, Part A of                    (i) The budget for primary PM10 and
                                                  PM10 NAAQS for Utah County,                             the State Implementation Plan, ‘‘Fine                   NOX for each required year of the
                                                  conformity must be demonstrated                         Particulate Matter (PM10).                              conformity demonstration, before
                                                  separately for the PM10 and NOX MVEBs                      ‘‘NOX’’ means oxides of nitrogen.                    trading allowed by this rule has been
                                                  established in the Utah County PM10                        ‘‘Primary PM10’’ means PM10 that is                  applied;
                                                  attainment demonstration. However,                      emitted directly by a source. Primary                      (ii) The portion of the primary PM10
                                                  emissions can be traded between the                     PM10 does not include particulate                       budget that will be used to supplement
                                                  PM10 and NOX budgets if there is an                     matter that is formed when gaseous                      the NOX budget, specified in tons per
                                                  approved rule in the SIP that establishes               emissions undergo chemical reactions                    day using a 1:1 ratio of primary PM10 to
                                                  appropriate mechanisms for such trades.                 in the ambient air.                                     NOX, for each required year of the
                                                  See 40 CFR 93.124(b).                                      ‘‘Transportation Conformity’’ means a                conformity demonstration;
                                                     Currently, the Utah SIP does not                     demonstration that a transportation                        (iii) The remainder of the primary
                                                  contain an approved rule that                           plan, transportation improvement                        PM10 budget that will be used in the
                                                  establishes an appropriate mechanism                    program, or project conforms with the                   conformity demonstration for primary
                                                  for trading of emissions between the                    emissions budgets in a state                            PM10, specified in tons per day for each
                                                  PM10 and NOX MVEBs for Utah County.                     implementation plan, as outlined in 40                  required year of the conformity
                                                  The EPA notes, however, that we                         CFR, Chapter 1, Part 93; 2 Determining                  demonstration; and
                                                  previously approved a Utah Rule (R307–                  Conformity of Federal Actions to State                     (iv) The budget for primary PM10 and
                                                  310) that allows trading of emissions                   or Federal Implementation Plans.                        NOX for each required year of the
                                                  between the PM10 and NOX MVEBs for                         4. R307–311–3. ‘‘Applicability’’. This               conformity demonstration after the
                                                  another PM10 nonattainment area in                      portion of the rule defines its                         trading allowed by this rule has been
                                                  Utah, Salt Lake County. 67 FR 44065                     applicability. EPA notes that this rule                 applied.
                                                  (July 1, 2002). For Utah County, the                    may only be applied to Utah County and                     (b) Transportation conformity for NOX
                                                  state has developed a new Rule R307–                    only for PM10:                                          shall be demonstrated using the NOX
                                                  311, very similar to that for Salt Lake                    (A) This rule applies to agencies                    budget supplemented by a portion of the
                                                  County, which establishes an on-road                    responsible for demonstrating                           primary PM10 budget as described in
                                                  mobile source emissions trading                         transportation conformity with the Utah                 (a)(ii). Transportation conformity for
                                                  mechanism that; (1) involves only PM10                  County portion of Section IX, Part A of                 primary PM10 shall be demonstrated
                                                  and NOX MVEBs from the PM10                             the State Implementation Plan, ‘‘Fine                   using the remainder of the primary PM10
                                                  attainment demonstration SIP, (2)                       Particulate Matter (PM10).                              budget described in (a)(iii).
                                                  allows trading in only one direction                       (B) This rule does not apply to                         (c) The primary PM10 budget shall not
                                                  from the PM10 budget to the NOX budget                  emission budgets from Section IX, Part                  be supplemented by using a portion of
                                                  on a one-to-one basis, (3) applies only                 C.6 of the State Implementation Plan,                   the NOX budget.
                                                  to transportation conformity                            ‘‘Carbon Monoxide Maintenance                           V. EPA’s Evaluation of the Technical
                                                  determinations in Utah County in                        Provisions.                                             Support Document for R307–311
                                                  conjunction with the PM10 attainment                       5. R307–311–4. ‘‘Trading Between
                                                  demonstration SIP, and (4) is pursuant                  Emission Budgets.’’ This portion of the                   The Governor’s SIP revision submittal
                                                  to 40 CFR part 93, subpart A.                           rule specifies the trading mechanism                    provided a TSD to support the new Rule
                                                                                                          and provides the trading ratio of NOX                   R307–311 and address MVEB trading, as
                                                  (b) Utah Rule R307–311 Description                                                                              contemplated by 40 CFR 93.124(b), for
                                                                                                          and PM10. In our section V below, EPA
                                                    An overview of all portions of the                    evaluates the technical justification                   PM10 and NOX in Utah County.
                                                  state’s new Rule R307–311 is provided                   provided in the TSD for the trading                     a. Description
                                                  below:                                                  ratio. In this section, we find that the
                                                    1. R307–311 is entitled ‘‘Utah County:                                                                           PM10 is particulate matter with
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                                                  Trading of Emission Budgets for                           1 R307–101–3 is approved into the Utah SIP and
                                                                                                                                                                  diameters smaller than 10 micrometers.
                                                  Transportation Conformity.’’                            reflects a date of July 1, 2013 for incorporation by    PM10 consists of solid and/or liquid
                                                    2. R307–311–1 ‘‘Purpose.’’ The stated                 reference of federal rules.                             particles of; (1) primary particles that
                                                  purpose of this new rule is:                              2 EPA notes this is applicable to projects not from   are directly emitted particulate matter
                                                    This rule establishes the procedures                  a conforming RTP and TIP which must conform             (PM) or PM that quickly condenses
                                                                                                          with the MVEBs. This clarification is only for those
                                                  that may be used to trade a portion of                  projects, and not projects from a conforming RTP
                                                                                                                                                                  upon release, and (2) secondary
                                                  the primary PM10 budget when                            and TIP. See 40 CFR 93.109(b) and 40 CFR                particles which are PM that is formed in
                                                  demonstrating that a transportation                     93.115(a).                                              the atmosphere from gaseous


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                                                  28196               Federal Register / Vol. 80, No. 95 / Monday, May 18, 2015 / Rules and Regulations

                                                  precursors. Important gaseous                           ammonium nitrate PM10, depending on                   be expected to develop separate PM2.5
                                                  precursors to PM include sulfur dioxide                 equilibrium considerations. Finally,                  precursor offset ratios that are
                                                  (SO2) which converts to sulfate (SO4)                   during the gas-to-particle conversion                 demonstrated to be suitable for
                                                  particles, NOX which converts to nitrate                process, deposition will remove a                     addressing the particular precursor’s
                                                  (NO3) particles, volatile organic                       significant amount of material.                       relationship with ambient PM2.5
                                                  compounds (VOCs) some of which                          Throughout this process of NOX                        concentrations for 24-hour averaging
                                                  convert to secondary organic aerosols,                  conversion to nitric acid, and then to                periods that are causing violations in
                                                  and ammonia (NH3) which adds to the                     PM10 and deposition, an equivalent                    that nonattainment area.’’ And on page
                                                  mass of sulfate PM and allows nitric                    amount of directly emitted PM10 is                    4, first paragraph; ‘‘. . . each ratio will
                                                  acid to convert to PM10 in the form of                  having a much larger effect on the PM10               need to be supported by modeling or
                                                  ammonium nitrate.                                       concentration. Directly emitted PM10                  other technical demonstration to show
                                                     Currently in Utah County, the RTP                    has an effect on the ambient                          that such ratio is suitable for the
                                                  and TIP must demonstrate conformity to                  concentration immediately upon its                    particular PM2.5 nonattainment area of
                                                  the MVEBs for PM10 and NOX that were                    release, while NOX emissions require                  concern . . .’’
                                                  derived from the 2002 EPA-approved                      hours to have an effect.                                 Our Revised 2011 Trading Policy
                                                  PM10 attainment demonstration SIP (see                     From a historical perspective, the                 provides a general framework for such
                                                  67 FR 78181, December 23, 2002). Since                  conversion of NOX to PM10 has been                    efforts, involving the following steps:
                                                  the regulatory goal is to achieve and                   discussed at EPA since at least 1996. In                 1. Definition of the appropriate
                                                  maintain attainment of the NAAQS and                    our 1996 proposed rule to revise the                  geographical area.
                                                  conformity related to total PM10, not                   regulations for the Prevention of                        2. Sensitivity runs with appropriate
                                                  individual components, it should not                    Significant Deterioration (PSD) and                   air quality models.
                                                  matter in the conformity analysis                                                                                3. Calculation of interpollutant ratios.
                                                                                                          nonattainment New Source Review                          4. Quality assurance of the results.
                                                  whether PM10 consists of directly                       (NSR) programs, we discussed a
                                                  emitted (primary) PM10 or secondary                                                                              To support Utah’s rule R307–311, the
                                                                                                          proposed approach for interpollutant                  UDAQ applied the above methodology
                                                  nitrate PM10 formed in the atmosphere                   trading for PM10 offsets in the
                                                  from precursor NOX gas emissions,                                                                             to the Utah County 24-hour PM10
                                                                                                          nonattainment NSR program:                            NAAQS nonattainment area. Although
                                                  provided the MVEBs for PM10 and NOX
                                                  are consistent with the SIP’s                             The conversion process may depend on                the Revised 2011 Trading Policy is
                                                                                                          several variables, including the availability of      specific to PM2.5 and nonattainment
                                                  demonstration of attainment. The state’s                chemical reactants in the atmosphere for the
                                                  TSD outlines the scientific rationale for                                                                     NSR offsets, and is nonbinding
                                                                                                          conversion process, and the difference in             guidance, in this action we consider that
                                                  why excess NOX motor vehicle                            mass between the PM10 precursor molecule
                                                  emissions (above the NOX MVEB level)                    and the PM10 particle that the precursor
                                                                                                                                                                the recommendations in the Revised
                                                  can be offset, on a 1 to 1 basis, with                  reacts to become. Another concern is that the         2011 Trading Policy provide a suitable
                                                  available motor vehicle PM10 emissions                  rate of conversion of the precursor to PM10           approach for a technical demonstration
                                                  (below the PM10 MVEB level). The                        may be so long that the precursor may not             that the trading ratio for Utah County for
                                                  State’s TSD explains why the provisions                 entirely convert to PM10 within the same              the PM10 and NOX MVEBs is
                                                  of Rule R307–311 are considered                         nonattainment area. Thus, there would be              appropriate under 40 CFR 93.124(b).
                                                  conservative (i.e., protective of the                   less counteracting effect and no net                     The UDAQ states in the TSD that
                                                                                                          improvement to air quality in the area. Under         exceedances of the PM10 24-hour
                                                  environment) in that the Rule only                      the EPA’s proposal, a source of a PM10
                                                  allows a one-way direction trading of                                                                         NAAQS in Utah County are
                                                                                                          precursor may offset its increased emissions          characterized by spikes in secondary
                                                  the MVEBs and a trading ratio of only                   with the same precursor type or PM10 (or a
                                                  1 to 1.                                                 combination of the two). In this situation, a
                                                                                                                                                                aerosol formation under conditions of
                                                                                                          net improvement in air quality would be               wintertime temperature inversions
                                                  b. What fraction of the NOX emissions                                                                         which prevent good atmospheric mixing
                                                                                                          assured. At this point, however, the EPA is
                                                  in Utah County convert to PM10?                         not proposing to allow offsetting among               and facilitate conversion of secondary
                                                     The state’s TSD describes how each                   different types of PM10 precursors, or                PM10. The UDAQ also states that a high
                                                  ton of gaseous NOX that gets converted                  offsetting PM10 increases with reduction in           percentage of the PM10 monitored in
                                                  to PM10 creates more than a ton of PM10                 PM10 precursors, because the Agency does              Utah County, during winter episodes of
                                                  because the molecular weight of                         not now have a scientific basis to propose            elevated concentration, lies also within
                                                  ammonium nitrate PM10 is greater than                   conversion factors. (61 FR 38305, July 23,            the PM2.5 fraction. EPA also notes that
                                                                                                          1996).
                                                  the molecular weight of NOX gaseous                                                                           the 2002 Utah County PM10 SIP revision
                                                  emissions. Considering the ratio of the                    These statements were cited in our                 identified both NOX and SO2 as
                                                  molecular weights of the NOX precursor                  2002 proposed approval of the MVEB                    precursors to the formation of PM10.
                                                  gas and the resulting ammonium nitrate                  trading rule (R307–310) for Salt Lake                    The TSD for Rule R307–311 identifies
                                                  aerosol (PM10), the state notes that a ton              County. 67 FR 21609 (May 1, 2002).                    that parts of Utah County (the valley
                                                  of NOX that is converted from a gas to                     However, EPA has more recently                     regions, western area of the County) are
                                                  a particle can form as much as 1.74 tons                issued guidance on interpollutant                     also designated as nonattainment for the
                                                  of PM10.                                                trading provisions for fine particulate               2006 24-hour PM2.5 NAAQS (74 FR
                                                     However, not all NOX emissions are                   matter (PM2.5) for offsets under the                  58688, November 13, 2009). To meet the
                                                  converted because it takes time to                      nonattainment NSR program. The                        requirements set out in subparts 1 and
                                                  convert NOX to nitric acid (HNO3),                      guidance memorandum is entitled                       4 of Part D, title I of the CAA, the UDAQ
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                                                  which is the necessary gaseous                          ‘‘Revised Policy to Address                           developed a moderate area attainment
                                                  precursor to ammonium nitrate PM10.                     Reconsideration of Interpollutant                     plan for Utah County that (among other
                                                  These reactions generally occur at rates                Trading Provisions for Fine Particles                 things) contained a demonstration that
                                                  of 1 to 10 percent per hour. It would                   (PM2.5)’’ and is dated July 21, 2011                  attainment of the 24-hour PM2.5
                                                  take approximately at least 10 hours to                 (hereafter referred to as ‘‘Revised 2011              standards by the applicable attainment
                                                  fully convert to nitric acid. After this                Trading Policy’’). The Revised 2011                   date for moderate areas, December 31,
                                                  initial conversion, only a fraction of the              Trading Policy states in part (page 3,                2015, is impracticable (hereafter ‘‘PM2.5
                                                  gaseous nitric acid will condense as                    fourth paragraph) that ‘‘. . . states will            Impracticability Demonstration’’). This


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                                                                              Federal Register / Vol. 80, No. 95 / Monday, May 18, 2015 / Rules and Regulations                                                                             28197

                                                  attainment plan was submitted by the                                         With regard to ambient 24-hour PM10                                 County is also designated as
                                                  Governor to EPA on December 16, 2014.                                     concentrations within Utah County, we                                  nonattainment for the 2006 24-hour
                                                  The air quality modeling for the PM2.5                                    have also evaluated the current (state-                                PM2.5 NAAQS. The city of Provo, in
                                                  Impracticability Demonstration was                                        certified) 2011 through 2013 PM10                                      Utah County, is designated as an
                                                  conducted by UDAQ using the                                               ambient air quality monitoring data for                                attainment/maintenance area for carbon
                                                  Community Multi-Scale Air Quality                                         Utah County in EPA’s Air Quality                                       monoxide (CO). These criteria
                                                  model (CMAQ). CMAQ is also capable                                        System (AQS), EPA’s repository for the                                 pollutants, along with the 2008 8-hour
                                                  of determining the relative importance                                    Nation’s ambient air quality data. EPA’s                               ozone NAAQS and the 1-hour nitrogen
                                                  of NOX and PM10 in contributing to                                        guidance for the calculation of 24-hour                                dioxide (NO2) NAAQS, were evaluated
                                                  PM10 nonattainment.                                                       PM10 design value concentrations                                       by the state in the TSD for potential
                                                     The emission inventories that were                                     provide four techniques.4 Our                                          collateral impacts from the
                                                  developed by UDAQ for the Utah                                            guidance’s ‘‘Table Lookup’’ method                                     implementation of the provisions of
                                                  County PM2.5 Impracticability                                             shows a 2011 through 2013 PM10 design                                  Rule R307–311.
                                                  Demonstration included PM2.5, SO2,                                        value concentration as 149mm3 at the
                                                                                                                                                                                                   1. PM2.5
                                                  NOX, VOC, Ammonia and PM10.3 As                                           North Provo monitor and 124mm3 at the
                                                  PM10 was inventoried for the PM2.5                                        Lindon monitor. These values, however,                                    As discussed above, part of Utah
                                                  Impracticability Demonstration, this                                      contain certain data quality issues such                               County (the western portion) was
                                                  allowed CMAQ model sensitivity runs                                       as missing days of monitoring data and                                 designated by EPA as nonattainment for
                                                  to be made for the purpose of evaluating                                  zero reading days. We believe that if the                              the 2006 24-hour PM2.5 NAAQS (74 FR
                                                  and supporting the MVEB trading                                           statistical method from our guidance,                                  58688, November 13, 2009), and on
                                                  provisions in Rule R307–311. The                                          ‘‘Using the empirical frequency                                        December 16, 2014, the state submitted
                                                  UDAQ’s methodology employed the                                           distribution of several years of the data                              an attainment plan containing, among
                                                  CMAQ model, as developed for Utah                                         (graphical estimation),’’ is used, in this                             other things, the PM2.5 Impracticability
                                                  County, with a substitution of PM10                                       particular case it provides a more                                     Demonstration. As with PM10 (described
                                                  emissions for PM2.5. The UDAQ also                                        accurate representation of the                                         above), UDAQ performed sensitivity
                                                  notes in the Rule R307–311 TSD that the                                   monitoring data.5 When using this                                      runs using the CMAQ modeling
                                                  CMAQ model was re-validated with                                          statistical/graphic approach, the North                                information that was developed for the
                                                  respect to PM10 emissions data from the                                   Provo monitor then has a 2011 through                                  PM2.5 Impracticability Demonstration.
                                                  appropriate episode period prior to                                       2013 PM10 design value concentration of                                This modeling exercise was performed
                                                  making the sensitivity runs (refer to                                     133.5 mm3 and the Lindon monitor has                                   in order to determine an equivalence
                                                  Appendix A of the TSD).                                                   a 2011 through 2013 design value                                       ratio between NOX and PM2.5. The
                                                     Having made these adjustments to the                                   concentration of 118.7 mm3. However,                                   resulting ratio of NOX to PM2.5 was
                                                  CMAQ model, UDAQ ran the model to                                         EPA notes that regardless of the                                       determined by the UDAQ to be 13.09 to
                                                  generate a time-series plot (refer to                                     methodology used, Utah County                                          1.0. Similar to the result for PM10, the
                                                  Appendix A of the TSD). The UDAQ                                          continues to demonstrate attainment of                                 ratio is greater than one to one, and
                                                  determined that the ratio of NOX to                                       the 24-hour PM10 NAAQS.                                                illustrates that reducing primary PM2.5
                                                  PM10 equivalence was 5.702 to one.                                                                                                               is more beneficial than reducing the
                                                  Since this ratio is considerably greater                                  c. Impact of the PM10 and NOX MVEB                                     same quantity of NOX.
                                                  than 1:1, the UDAQ concluded that                                         Trading Rule on Other Pollutants; EPA’s                                   However, Rule R307–311 provides for
                                                  reducing primary PM10 is more                                             Evaluation of Utah’s Information                                       reductions in PM10, and generally
                                                  beneficial than reducing NOX for                                          Regarding the Provisions of Section                                    speaking, a reduction in PM10 is not
                                                  improving Utah County’s air quality                                       110(1) of the Clean Air Act                                            necessarily a reduction in PM2.5. So that
                                                  with respect to PM10. The EPA has                                            Section 110(1) of the CAA states that                               the above PM2.5 to NOX ratio could
                                                  evaluated this additional sensitivity                                     a SIP revision cannot be approved if the                               support a determination that Rule
                                                  modeling information and has                                              revision would interfere with any                                      R307–311 would not have an adverse
                                                  concluded that it provides an adequate                                    applicable requirement concerning                                      impact on overall PM2.5 concentrations
                                                  technical demonstration to support the                                    attainment and reasonable further                                      in Utah County, the UDAQ considered
                                                  MVEB trading provisions in Rule R307–                                     progress towards attainment of a                                       the physical make-up of PM10 emissions
                                                  311. Based on the demonstration, we                                       NAAQS or any other applicable                                          from on-road mobile sources in Utah
                                                  also conclude that Rule R307–311                                          requirement of the CAA. EPA’s                                          County. The following table, presenting
                                                  establishes an appropriate trading ratio,                                 evaluation above shows that this SIP                                   information from the TSD, considers PM
                                                  and that under Rule R307–311, there                                       revision will not interfere with                                       emissions as they were inventoried for
                                                  will not be adverse impacts to the                                        attainment of the PM10 NAAQS.                                          calendar year 2015 in the PM2.5
                                                  overall ambient 24-hour PM10                                                 In addition to being a designated                                   Impracticability Demonstration for the
                                                  concentrations within Utah County.                                        nonattainment area for PM10, Utah                                      Utah County PM2.5 nonattainment area:

                                                                                                     TABLE 1—UTAH COUNTY; ON-ROAD MOBILE SOURCE EMISSIONS
                                                                                                                                             [In tons per day in 2015]

                                                                                                                                                                                                     PM10              PM2.5             %PM2.5
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                                                  Road Dust ....................................................................................................................................            3.95               0.99              25.1


                                                    3 We are not acting today on any portion of the                           4 PM
                                                                                                                                   10 SIP Development Guideline, EPA–450/2–                        www.epa.gov/ttn/caaa/t1/memoranda/
                                                  state’s December 16, 2014 submittal, including the                        86–001, June 1987, section 6.3; pages 6–3 through                      pm10sip_dev_guide.pdf.
                                                  PM2.5 Impracticability Demonstration and the                              6–8. The cited portions of this guidance are                             5 Memorandum to File entitled ‘‘Utah PM
                                                                                                                                                                                                                                             10 24-
                                                  emission inventories.                                                     available in the docket for this action; the entire                    hour Design Concentrations,’’ Richard M. Payton,
                                                                                                                            document is available online at http://                                USEPA Region 8, dated April 22, 2015.



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                                                  28198                       Federal Register / Vol. 80, No. 95 / Monday, May 18, 2015 / Rules and Regulations

                                                                                          TABLE 1—UTAH COUNTY; ON-ROAD MOBILE SOURCE EMISSIONS—Continued
                                                                                                                                                [In tons per day in 2015]

                                                                                                                                                                                                           PM10            PM2.5          %PM2.5

                                                  Direct PM .....................................................................................................................................                 1.84             1.38        75.0

                                                        Total ......................................................................................................................................              5.79             2.37        40.9



                                                     As derived from the state’s                                              trading of the PM10 budget to the NOX                                      2015 estimated NOX emissions
                                                  information and as presented in Table 1                                     budget in one direction only at a ratio                                    contained in the PM2.5 Impracticability
                                                  above, for every ton of PM10 emissions                                      of 1:1, would not have an adverse                                          Demonstration.
                                                  due to on-road mobile sources, 0.409                                        impact on overall ambient 24-hour
                                                  tons would be composed of PM2.5. The                                        PM2.5 concentrations within Utah                                           2. Carbon Monoxide (CO)
                                                  provisions of Rule R307–311 would                                           County.                                                                      As noted previously, the Provo-Orem
                                                  allow a one-ton increase in NOX                                                The EPA notes that additional
                                                                                                                                                                                                         area is a CO attainment/maintenance
                                                  emissions that would be offset by a one-                                    supporting information was provided in
                                                                                                                                                                                                         area (70 FR 66264, November 2, 2005).
                                                  ton decrease in the PM10 emissions.                                         the PM2.5 Impracticability
                                                                                                                                                                                                         EPA notes that NOX emissions do not
                                                  Based on the information in the above                                       Demonstration as it included an
                                                                                                                                                                                                         act as a precursor to carbon monoxide;
                                                  table, the state concluded that a one-ton                                   emission inventory of NOX emissions
                                                                                                                                                                                                         therefore, EPA has concluded that the
                                                  increase in NOX emissions would be                                          for calendar year 2015. The PM2.5
                                                                                                                                                                                                         application of the provisions of R307–
                                                  offset by a 0.409-ton decrease in PM2.5                                     Impracticability Demonstration notes
                                                                                                                                                                                                         311 will not impact the Provo-Orem CO
                                                  emissions. To illustrate, using the                                         that on-road mobile sources in Utah
                                                                                                                                                                                                         maintenance plan or attainment of the
                                                  1:0.409 ratio and the equivalence ratio                                     County are expected to account for
                                                                                                                              21.48 tons per winter weekday in 2015.                                     CO NAAQS. The state notes in the Rule
                                                  of 13.09:1 for NOX to PM2.5, a 13 ton
                                                                                                                              The on-road mobile sources emissions                                       R307–311 TSD that CO maintenance
                                                  increase in NOX emissions would equal
                                                                                                                              were calculated using EPA’s Motor                                          plan has its own CO MVEB which has
                                                  a 1 ton increase of PM2.5 emissions.
                                                                                                                              Vehicle Emission Simulator (MOVES)                                         been set at a level demonstrated to keep
                                                  However, applying the 1 to 1 trading
                                                                                                                              model and the MOVES2010a version.                                          the Provo-Orem area in attainment with
                                                  ratio with PM10 would then require a 13
                                                                                                                              This estimate is greater than the                                          the CO standard. The provisions of Rule
                                                  ton PM10 emissions decrease which is a
                                                                                                                              combined sum of the 2020 MVEBs for                                         R307–311 do not change the
                                                  5.3 ton (13 x 0.409) PM2.5 emissions
                                                  decrease. This example results in a net                                     both PM10 and NOX contained in the                                         maintenance plan’s CO MVEB.
                                                  4.3 ton decrease in PM2.5 emissions.                                        EPA-approved 2002 SIP revision. To                                           For purposes of completeness, the
                                                     Based on this 1:0.409 ratio and the                                      demonstrate, even if the entire PM10                                       state provided recent CO ambient air
                                                  equivalence ratio of 13.09:1 for NOX to                                     MVEB was traded to increase the NOX                                        quality monitoring data in the Rule
                                                  PM2.5, the EPA can, therefore, agree with                                   MVEB as a result of the application of                                     R307–311 TSD. These data have been
                                                  the state and conclude that Rule R307–                                      Rule R307–311, the resulting total NOX                                     excerpted by EPA and are provided in
                                                  311, with its requirements to allow the                                     emissions would still be less than the                                     the table below:

                                                                                                             TABLE 2—CO 1-HOUR AND CO 8-HOUR DESIGN VALUES
                                                                                                                               Annual CO NAAQS
                                                                                 Year                                                                                                                  8-hour CO NAAQS (9 ppm)
                                                                                                                                (1-hour, 35 ppm)

                                                  Monitor location:                                                         North Provo:                           North Provo:
                                                     2011 .........................................................             3.2 ppm           ..............       2.1 ppm
                                                     2012 .........................................................             2.8 ppm           ..............       1.9 ppm
                                                     2013 .........................................................             2.9 ppm           ..............       2.0 ppm
                                                     Preliminary 2014 ......................................                    2.8 ppm           ..............       1.9 ppm



                                                    As can be seen in Table 2 above, the                                      ozone NAAQS. The current, applicable                                       the 2008 8-hour ozone NAAQS, EPA
                                                  Provo area continues to demonstrate                                         ozone NAAQS is the 2008 8-hour ozone                                       considered ozone ambient air quality
                                                  compliance with both the CO Annual                                          NAAQS and Utah County was                                                  monitoring data for Utah County and
                                                  and CO 8-hour NAAQS.                                                        designated by EPA as unclassifiable/                                       predicted future-year NOX emission
                                                  3. Ozone                                                                    attainment for that NAAQS (77 FR                                           reductions from motor vehicles.
                                                                                                                              30088, May 21, 2012). Thus, the state                                        The state provided recent ozone air
                                                     The EPA notes that NOX emissions                                         has not had to develop an ozone
                                                  are a precursor to the formation of                                                                                                                    quality monitoring data in the Rule
                                                                                                                              attainment plan or maintenance plan for                                    R307–311 TSD. EPA has excerpted that
                                                  ground level ozone, PM2.5, and PM10.
                                                                                                                              Utah County.                                                               information from the TSD and presents
                                                  With regard to ozone, we also note that
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                                                  Utah County has never been designated                                          To assess the potential impacts to                                      those data in Table 3 below:
                                                  as nonattainment for any applicable                                         Utah County’s continued attainment of




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                                                                              Federal Register / Vol. 80, No. 95 / Monday, May 18, 2015 / Rules and Regulations                                                                                   28199

                                                                                                                      TABLE 3—8-HOUR OZONE DESIGN VALUES (DV)
                                                                                                                                                                  8-hour ozone DV                                                      8-hour ozone DV
                                                                                 Year                                            Monitor location                                                     Monitor location
                                                                                                                                                                 (NAAQS = 75 ppb)                                                     (NAAQS = 75 ppb)

                                                  2011    .................................................................   North   Provo   ...............   67.7   ppb   ....................   Spanish   Fork   .............   68.0   ppb
                                                  2012    .................................................................   North   Provo   ...............   70.7   ppb   ....................   Spanish   Fork   .............   70.3   ppb
                                                  2013    .................................................................   North   Provo   ...............   73.0   ppb   ....................   Spanish   Fork   .............   70.3   ppb
                                                  2014   (Preliminary) ............................................           North   Provo   ...............   73.0   ppb   ....................   Spanish   Fork   .............   71.7   ppb



                                                     As can be seen in Table 3 above, Utah                                    expected reductions in motor vehicle                                  demonstrate attainment of the PM10
                                                  County continues to demonstrate                                             emissions of NOX, along with the                                      NAAQS and is conservative and
                                                  compliance with 2008 8-hour ozone                                           monitoring data showing that Utah                                     justifiable. In addition, based on the
                                                  NAAQS.                                                                      County is currently attaining the 2008                                information in the Rule R307–311 TSD,
                                                     The provisions of Rule R307–311                                          ozone NAAQS, we conclude that Rule                                    and as supplemented by information
                                                  would allow for an increase in the Utah                                     R307–311 will not interfere with                                      prepared by EPA, we have concluded
                                                  County PM10 SIP’s NOX MVEB.                                                 attainment of the ozone NAAQS.                                        that with the implementation of the
                                                  However, EPA believes that regardless                                                                                                             provisions in Rule R307–311 there will
                                                  of this potential increase in the NOX                                       4. NO2
                                                                                                                                                                                                    not be adverse effects to the CO, PM2.5,
                                                  MVEB, overall future NOX emissions                                             The EPA notes that NOX emissions,                                  8-hour ozone, and NO2 1-hour NAAQS.
                                                  from mobile sources will significantly                                      which contain NO2, are a precursor to                                 These statements are with respect to the
                                                  decrease not only in Utah County, but                                       the formation of ground level ozone,                                  implementation of the provisions of
                                                  in the nation as a whole. On April 28,                                      PM2.5, and PM10. We also note that Utah                               Rule R307–311 by MAG when MAG
                                                  2014, we published a final rule adopting                                    County was designated as                                              performs a transportation conformity
                                                  new Tier 3 emission standards and fuel                                      unclassifiable/attainment for the new,                                determination for its RTP and/or TIP.
                                                  requirements for motor vehicles and for                                     more stringent, 2010 1-hour NO2
                                                  motor vehicle fuels (79 FR 23414).                                          NAAQS (77 FR 9532, February 17,                                       VI. Consideration of Section 110(l) of
                                                     Our April 28, 2014 final rule included                                   2012).                                                                the Clean Air Act
                                                  new Tier 3 emission standards to reduce                                        To assess the potential impacts to                                    Section 110(l) of the CAA states that
                                                  exhaust and evaporative emissions from                                      Utah County’s continued attainment of                                 a SIP revision cannot be approved if the
                                                  light-duty vehicles, light-duty trucks,                                     the 2010 1-hour NO2 NAAQS, as that                                    revision would interfere with any
                                                  and heavy-duty vehicles up to 14,000                                        version of the NO2 NAAQS is more                                      applicable requirement concerning
                                                  pounds Gross Vehicle Weight Rating. In                                      constraining, EPA considered NO2                                      attainment and reasonable further
                                                  addition, the final rule specified                                          ambient air quality monitoring data for                               progress towards attainment of a
                                                  corresponding changes to in-use fuel                                        Utah County. The state provided recent                                NAAQS or any other applicable
                                                  requirements. The motor vehicle                                             NO2 air quality monitoring data in the                                requirement of the CAA. In view of the
                                                  tailpipe standards include different                                        Rule R307–311 TSD. EPA has excerpted                                  state’s rule language for its new Rule
                                                  phase-in schedules that vary by vehicle                                     that information from the TSD and                                     R307–311, our analyses presented above
                                                  class, but generally phase-in between                                       presents those data in Table 4 below:                                 in section ‘‘V. EPA’s Evaluation of the
                                                  model years 2017 to 2021 for light duty                                                                                                           Technical Support Document for R307–
                                                  vehicles and up to 2025 for heavy duty                                           TABLE 4—NO2 1-HOUR DESIGN                                        311’’ with respect to PM10, PM2.5, ozone
                                                  vehicles. The vehicle emission                                                            VALUES                                                  and NO2, and the fact that NOX has less
                                                  standards combined with the reduction                                                                                                             impact on a per ton basis than primary
                                                  of gasoline sulfur content, which allows                                                                          NO2 NAAQS                       PM10 emissions in Utah County, we
                                                                                                                                         Year
                                                  both current and new vehicle emission                                                                          (DV 1-hour 100 ppb)                have concluded there will be a net
                                                  control systems to function at a higher                                                                                                           benefit on ambient air concentrations of
                                                  pollutant removal efficiently, will                                         Monitor location:                 North Provo:
                                                                                                                               2011 .......................         54.7 ppb                        PM10 when excess NOX emissions are
                                                  significantly reduce motor vehicle                                           2012 .......................         58.0 ppb                        offset on a one to one basis. Therefore,
                                                  emissions of NOX, VOCs, direct PM2.5,                                        2013 .......................         66.3 ppb                        implementation of the provisions of
                                                  CO and air toxics. Compared to current                                       Preliminary 2014 ...                 68.3 ppb                        Rule R307–311 will allow the continued
                                                  vehicle and fuel standards, the non-                                                                                                              demonstration of attainment of the PM10
                                                  methane organic gases (NMOG) and                                              As can be seen in Table 4 above, Utah                               NAAQS in Utah County and is
                                                  NOX, presented as NMOG+NOX, Tier 3                                          County continues to demonstrate                                       conservative and justifiable. We have
                                                  tailpipe standards for light-duty                                           compliance with 2010 1-hour NO2                                       also concluded there will be no adverse
                                                  vehicles are estimated to show an                                           NAAQS with values well below the                                      impact on any other NAAQS or
                                                  approximately 80% reduction from                                            level of the NAAQS. We, therefore,                                    applicable requirement of the CAA.
                                                  today’s fleet average. As both NOX and                                      conclude that Rule R307–311 will not                                  Therefore, our approval of the State’s
                                                  VOCs contribute to the formation of                                         interfere with attainment of the 1-hour                               Rule R307–311 is consistent with
                                                  ground level ozone and secondary                                            NO2 NAAQS.                                                            section 110(l) of the CAA.
                                                  PM2.5, the EPA notes that these vehicle
                                                                                                                              d. Conclusion
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                                                  emission reductions will have a positive                                                                                                          VII. Final Action
                                                  impact on all areas of the nation                                             On the basis of the above EPA                                         The EPA is publishing this rule
                                                  including Utah County. Additionally,                                        analyses, we have concluded that using                                without prior proposal because the
                                                  we expect to see associated downward                                        a portion of the Utah County PM10 SIP’s                               Agency views the Governor of Utah’s
                                                  trends of CO, ozone, PM2.5 and PM10                                         PM10 MVEB to offset or compensate for                                 March 9, 2015 submitted SIP revisions
                                                  concentrations that will reflect the                                        excess on-road mobile sources NOX                                     for Utah’s Rule R307–311 and the Rule’s
                                                  implementation of these fuel/vehicle                                        emissions, on a one-to-one basis and in                               associated TSD as a noncontroversial
                                                  emission improvements. Based on these                                       one direction only, continues to                                      amendment and anticipates no adverse


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                                                  28200               Federal Register / Vol. 80, No. 95 / Monday, May 18, 2015 / Rules and Regulations

                                                  comments. However, in the Proposed                      under state law and does not impose                   copy of the rule, to each House of the
                                                  Rules section of today’s Federal                        any additional enforceable duty beyond                Congress and to the Comptroller General
                                                  Register publication, EPA is publishing                 that required by state law, it does not               of the United States. EPA will submit a
                                                  a separate document that will serve as                  contain any unfunded mandate or                       report containing this rule and other
                                                  the proposal to approve the SIP revision                significantly or uniquely affect small                required information to the U.S. Senate,
                                                  if adverse comments are filed. This rule                governments, as described in the                      the U.S. House of Representatives, and
                                                  will be effective July 17, 2015 without                 Unfunded Mandates Reform Act of 1995                  the Comptroller General of the United
                                                  further notice unless the Agency                        (Pub. L. 104–4).                                      States prior to publication of the rule in
                                                  receives adverse comments by June 17,                      The SIP is not approved to apply on                the Federal Register. A major rule
                                                  2015. If the EPA receives adverse                       any Indian reservation land or in any                 cannot take effect until 60 days after it
                                                  comments, the EPA will publish a                        other area where EPA or an Indian tribe               is published in the Federal Register.
                                                  timely withdrawal in the Federal                        has demonstrated that a tribe has                     This action is not a ‘‘major rule’’ as
                                                  Register informing the public that the                  jurisdiction. In those areas of Indian                defined by 5 U.S.C. 804(2).
                                                  rule will not take effect. The EPA will                 country, the rule does not have tribal                   Under section 307(b)(1) of the Clean
                                                  address all public comments in a                        implications and will not impose                      Air Act, petitions for judicial review of
                                                  subsequent final rule based on the                      substantial direct costs on tribal                    this action must be filed in the United
                                                  proposed rule. The EPA will not                         governments or preempt tribal law as                  States Court of Appeals for the
                                                  institute a second comment period on                    specified by Executive Order 13175 (65                appropriate circuit by July 17, 2015.
                                                  this action. Any parties interested in                  FR 67249, November 9, 2000). This                     Filing a petition for reconsideration by
                                                  commenting must do so at this time.                     action also does not have Federalism                  the Administrator of this final rule does
                                                  Please note that if the EPA receives                    implications because it does not have                 not affect the finality of this action for
                                                  adverse comment on an amendment,                        substantial direct effects on the states,             the purposes of judicial review nor does
                                                  paragraph, or section of this rule and if               on the relationship between the national              it extend the time within which a
                                                  that provision may be severed from the                  government and the states, or on the                  petition for judicial review may be filed,
                                                  remainder of the rule, the EPA may                      distribution of power and                             and shall not postpone the effectiveness
                                                  adopt as final those provisions of the                  responsibilities among the various                    of such rule or action. Parties with
                                                  rule that are not the subject of an                     levels of government, as specified in                 objections to this direct final rule are
                                                  adverse comment.                                        Executive Order 13132 (64 FR 43255,                   encouraged to file a comment in
                                                                                                          August 10, 1999). This action merely                  response to the parallel notice of
                                                  VIII. Incorporation by Reference                        approves a state rule implementing a                  proposed rulemaking for this action
                                                    In this rule, the EPA is finalizing                   Federal standard, and does not alter the              published in the proposed rules section
                                                  regulatory text that includes                           relationship or the distribution of power             of today’s Federal Register, rather than
                                                  incorporation by reference. In                          and responsibilities established in the               file an immediate petition for judicial
                                                  accordance with requirements of 1 CFR                   Clean Air Act. This rule also is not                  review of this direct final rule, so that
                                                  51.5, the EPA is finalizing the                         subject to Executive Order 13045                      EPA can withdraw this direct final rule
                                                  incorporation by reference of the Utah                  ‘‘Protection of Children from                         and address the comment in the
                                                  SIP materials and rules described in the                Environmental Health Risks and Safety                 proposed rulemaking. This action may
                                                  amendments to 40 CFR part 52 set forth                  Risks’’ (62 FR 19885, April 23, 1997),                not be challenged later in proceedings to
                                                  below. The EPA has made, and will                       because it approves a state rule                      enforce its requirements. (See CAA
                                                  continue to make, these documents                       implementing a Federal standard.                      section 307(b)(2).)
                                                  generally available electronically                         In reviewing SIP submissions, EPA’s
                                                  through www.regulations.gov and/or in                   role is to approve state choices,                     List of Subjects in 40 CFR Part 52
                                                  hard copy at the appropriate EPA office                 provided that they meet the criteria of                 Environmental protection, Air
                                                  (see the ADDRESSES section of this rule’s               the Clean Air Act. In this context, in the            pollution control, Carbon monoxide,
                                                  preamble for more information).                         absence of a prior existing requirement               Incorporation by reference,
                                                                                                          for the state to use voluntary consensus              Intergovernmental relations, Nitrogen
                                                  IX. Statutory and Executive Order
                                                                                                          standards (VCS), EPA has no authority                 dioxide, Ozone, Particulate matter,
                                                  Reviews
                                                                                                          to disapprove a SIP submission for                    Reporting and recordkeeping
                                                     Under Executive Order 12866 (58 FR                   failure to use VCS. It would thus be
                                                  51735, October 4, 1993), this action is                                                                       requirements, and Volatile organic
                                                                                                          inconsistent with applicable law for                  compounds.
                                                  not a ‘‘significant regulatory action’’ and             EPA, when it reviews a SIP submission;
                                                  therefore is not subject to review by the               to use VCS in place of a SIP submission                   Authority: 42 U.S.C. 7401 et seq.
                                                  Office of Management and Budget. For                    that otherwise satisfies the provisions of              Dated: May 1, 2015.
                                                  this reason, this action is also not                    the Clean Air Act. Thus, the                          Shaun L. McGrath,
                                                  subject to Executive Order 13211,                       requirements of section 12(d) of the                  Regional Administrator, Region 8.
                                                  ‘‘Actions Concerning Regulations That                   National Technology Transfer and
                                                  Significantly Affect Energy Supply,                                                                             40 CFR part 52 is amended to read as
                                                                                                          Advancement Act of 1995 (15 U.S.C.
                                                  Distribution, or Use’’ (66 FR 28355, May                                                                      follows:
                                                                                                          272 note) do not apply. This rule does
                                                  22, 2001). This action merely approves                  not impose an information collection                  PART 52 [AMENDED]
                                                  state law as meeting Federal                            burden under the provisions of the
                                                  requirements and imposes no additional                  Paperwork Reduction Act of 1995 (44                   ■ 1. The authority citation for Part 52
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                                                  requirements beyond those imposed by                    U.S.C. 3501 et seq).                                  continues to read as follows:
                                                  state law. Accordingly, the                                The Congressional Review Act, 5
                                                                                                                                                                    Authority: 42 U.S.C. 7401 et seq.
                                                  Administrator certifies that this rule                  U.S.C. 801 et seq, as added by the Small
                                                  will not have a significant economic                    Business Regulatory Enforcement                       Subpart TT—Utah
                                                  impact on a substantial number of small                 Fairness Act of 1996, generally provides
                                                  entities under the Regulatory Flexibility               that before a rule may take effect, the               ■ 2. Section 52.2320 is amended by
                                                  Act (5 U.S.C. 601 et seq). Because this                 agency promulgating the rule must                     adding paragraph (c)(79) to read as
                                                  rule approves pre-existing requirements                 submit a rule report, which includes a                follows:


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                                                                      Federal Register / Vol. 80, No. 95 / Monday, May 18, 2015 / Rules and Regulations                                           28201

                                                  § 52.2320   Identification of plan.                     Regulatory Public Docket (OPP Docket)                 identify docket ID number EPA–HQ–
                                                  *       *    *    *     *                               in the Environmental Protection Agency                OPP–2012–0963 in the subject line on
                                                     (c) * * *                                            Docket Center (EPA/DC), West William                  the first page of your submission. All
                                                     (79) Revisions to the Utah State                     Jefferson Clinton Bldg., Rm. 3334, 1301               objections and requests for a hearing
                                                  Implementation Plan involving Utah                      Constitution Ave. NW., Washington, DC                 must be in writing, and must be
                                                  Rule R307–311; Utah County: Trading                     20460–0001. The Public Reading Room                   received by the Hearing Clerk on or
                                                  of Emission Budgets for Transportation                  is open from 8:30 a.m. to 4:30 p.m.,                  before July 17, 2015. Addresses for mail
                                                  Conformity. The Utah Air Quality Board                  Monday through Friday, excluding legal                and hand delivery of objections and
                                                  adopted this SIP revision on March 4,                   holidays. The telephone number for the                hearing requests are provided in 40 CFR
                                                  2015, it became state effective on March                Public Reading Room is (202) 566–1744,                178.25(b).
                                                  5, 2015, and was submitted by the                       and the telephone number for the OPP                    In addition to filing an objection or
                                                  Governor to EPA by a letter dated March                 Docket is (703) 305–5805. Please review               hearing request with the Hearing Clerk
                                                  9, 2015.                                                the visitor instructions and additional               as described in 40 CFR part 178, please
                                                     (i) Incorporation by reference.                      information about the docket available                submit a copy of the filing (excluding
                                                     (A) Utah Rules R307, Environmental                   at http://www.epa.gov/dockets.                        any Confidential Business Information
                                                  Quality, Air Quality, R307–311, Utah                    FOR FURTHER INFORMATION CONTACT:                      (CBI)) for inclusion in the public docket.
                                                  County: Trading of Emission Budgets for                 Robert McNally, Biopesticides and                     Information not marked confidential
                                                  Transportation Conformity. Effective                    Pollution Prevention Division (7511P),                pursuant to 40 CFR part 2 may be
                                                  March 5, 2015, as proposed in the Utah                  Office of Pesticide Programs,                         disclosed publicly by EPA without prior
                                                  State Bulletin on January 1, 2015 and                   Environmental Protection Agency, 1200                 notice. Submit the non-CBI copy of your
                                                  published on April 1, 2015 as effective.                Pennsylvania Ave. NW., Washington,                    objection or hearing request, identified
                                                                                                          DC 20460–0001; main telephone                         by docket ID number EPA–HQ–OPP–
                                                  [FR Doc. 2015–11784 Filed 5–15–15; 8:45 am]
                                                                                                          number: (703) 305–7090; email address:                2012–0963, by one of the following
                                                  BILLING CODE 6560–50–P
                                                                                                          BPPDFRNotices@epa.gov.                                methods:
                                                                                                                                                                  • Federal eRulemaking Portal: http://
                                                                                                          SUPPLEMENTARY INFORMATION:                            www.regulations.gov. Follow the online
                                                  ENVIRONMENTAL PROTECTION
                                                                                                          I. General Information                                instructions for submitting comments.
                                                  AGENCY
                                                                                                                                                                Do not submit electronically any
                                                                                                          A. Does this action apply to me?                      information you consider to be CBI or
                                                  40 CFR Part 180
                                                                                                             You may be potentially affected by                 other information whose disclosure is
                                                  [EPA–HQ–OPP–2012–0963; FRL–9926–87]                     this action if you are an agricultural                restricted by statute.
                                                                                                          producer, food manufacturer, or                         • Mail: OPP Docket, Environmental
                                                  Trichoderma asperelloides strain JM41R;                                                                       Protection Agency Docket Center (EPA/
                                                                                                          pesticide manufacturer. The following
                                                  Exemption From the Requirement of a                                                                           DC), (28221T), 1200 Pennsylvania Ave.
                                                                                                          list of North American Industrial
                                                  Tolerance                                                                                                     NW., Washington, DC 20460–0001.
                                                                                                          Classification System (NAICS) codes is
                                                  AGENCY:  Environmental Protection                       not intended to be exhaustive, but rather               • Hand Delivery: To make special
                                                  Agency (EPA).                                           provides a guide to help readers                      arrangements for hand delivery or
                                                                                                          determine whether this document                       delivery of boxed information, please
                                                  ACTION: Final rule.
                                                                                                          applies to them. Potentially affected                 follow the instructions at http://
                                                  SUMMARY:   This regulation establishes an               entities may include:                                 www.epa.gov/dockets/contacts.html.
                                                  exemption from the requirement of a                        • Crop production (NAICS code 111).                Additional instructions on commenting
                                                  tolerance for residues of Trichoderma                      • Animal production (NAICS code                    or visiting the docket, along with more
                                                  asperelloides strain JM41R in or on all                 112).                                                 information about dockets generally, is
                                                  food commodities when used in                              • Food manufacturing (NAICS code                   available at http://www.epa.gov/
                                                  accordance with label directions and                    311).                                                 dockets.
                                                  good agricultural practices. BASF                          • Pesticide manufacturing (NAICS
                                                                                                                                                                II. Background
                                                  Corporation submitted a petition to EPA                 code 32532).
                                                  under the Federal Food, Drug, and                                                                                In the Federal Register of February
                                                                                                          B. How can I get electronic access to                 21, 2014 (79 FR 9870) (FRL–9904–98),
                                                  Cosmetic Act (FFDCA), requesting an                     other related information?
                                                  exemption from the requirement of a                                                                           EPA issued a document pursuant to
                                                  tolerance. This regulation eliminates the                 You may access a frequently updated                 FFDCA section 408(d)(3), 21 U.S.C.
                                                  need to establish a maximum                             electronic version of 40 CFR part 180                 346a(d)(3), announcing the filing of a
                                                  permissible level for residues of                       through the Government Printing                       pesticide tolerance petition (PP 2F8102)
                                                  Trichoderma asperelloides strain JM41R                  Office’s e-CFR site at http://                        by BASF Corporation, 26 Davis Dr.,
                                                  under FFDCA.                                            www.ecfr.gov/cgi-bin/text-                            Research Triangle Park, NC 27709. The
                                                                                                          idx?&c=ecfr&tpl=/ecfrbrowse/Title40/                  petition requested that 40 CFR part 180
                                                  DATES: This regulation is effective May
                                                                                                          40tab_02.tpl.                                         be amended by establishing an
                                                  18, 2015. Objections and requests for
                                                                                                                                                                exemption from the requirement of a
                                                  hearings must be received on or before                  C. How can I file an objection or hearing             tolerance for residues of Trichoderma
                                                  July 17, 2015, and must be filed in                     request?                                              fertile strain JM41R in or on all food
                                                  accordance with the instructions                          Under FFDCA section 408(g), 21                      commodities. That document referenced
                                                  provided in 40 CFR part 178 (see also
asabaliauskas on DSK5VPTVN1PROD with RULES




                                                                                                          U.S.C. 346a(g), any person may file an                a summary of the petition prepared by
                                                  Unit I.C. of the SUPPLEMENTARY                          objection to any aspect of this regulation            the petitioner BASF Corporation, which
                                                  INFORMATION).
                                                                                                          and may also request a hearing on those               is available in the docket via http://
                                                  ADDRESSES:   The docket for this action,                objections. You must file your objection              www.regulations.gov. There were no
                                                  identified by docket identification (ID)                or request a hearing on this regulation               comments received in response to the
                                                  number EPA–HQ–OPP–2012–0963, is                         in accordance with the instructions                   notice of filing.
                                                  available at http://www.regulations.gov                 provided in 40 CFR part 178. To ensure                   Subsequently, the petitioner provided
                                                  or at the Office of Pesticide Programs                  proper receipt by EPA, you must                       additional data (i.e., DNA sequence


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Document Created: 2015-12-16 07:38:43
Document Modified: 2015-12-16 07:38:43
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionDirect final rule.
DatesThis rule is effective on July 17, 2015 without further notice, unless EPA receives adverse comment by June 17, 2015. If adverse comment is received, EPA will publish a timely withdrawal of the direct final rule in the Federal Register informing the public that the rule will not take effect.
ContactTim Russ, Air Program, EPA, Region 8, Mailcode 8P-AR, 1595 Wynkoop Street, Denver, Colorado 80202-1129, (303) 312-6479, [email protected]
FR Citation80 FR 28193 
CFR AssociatedEnvironmental Protection; Air Pollution Control; Carbon Monoxide; Incorporation by Reference; Intergovernmental Relations; Nitrogen Dioxide; Ozone; Particulate Matter; Reporting and Recordkeeping Requirements and Volatile Organic Compounds

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