[Federal Register Volume 81, Number 156 (Friday, August 12, 2016)]
[Proposed Rules]
[Pages 53365-53370]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-18869]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R08-OAR-2016-0366; FRL-9950-36-Region 8]


Approval and Promulgation of State Implementation Plan Revisions 
to Primary Air Quality Standards, Minor Source Baseline Date, 
Incorporation by Reference, and 2008 Ozone NAAQS Infrastructure 
Requirements for CAA Section 110(a)(2)(C) and (D)(i)(II); Wyoming

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Environmental Protection Agency (EPA) is proposing to 
approve State Implementation Plan (SIP) revisions submitted by the 
State of Wyoming on May 28, 2015 and November 6, 2015. The amendments 
update the version of the Code of Federal Regulations (CFR) 
incorporated by reference into the rules of the State of Wyoming for 
Chapter 2, Section 12; Chapter 3, General Emission Standards, Section 
9; and Chapter 6, Prevention of Significant Deterioration, Section 4. 
The May 28, 2015 submittal updates a citation to a Federal Register 
article (i.e., Federal Register notice) under the definition of ``tpy 
CO2 equivalent emissions (CO2e),'' and lists a 
new minor source baseline date for fine particulate. The State also 
proposes to update the primary air quality standards for particulate 
matter (PM2.5) to reflect federal updates that went into 
effect in January 2013. The updated primary PM2.5 standard 
is 12 micrograms per cubic meter ([micro]g/m\3\) annual arithmetic mean 
concentration, which is lowered from its previous level of 15 [micro]g/
m\3\. The EPA is also proposing approval of portions of the State's 
February 6, 2014 2008 ozone National Ambient Air Quality Standards 
(NAAQS) infrastructure certification regarding prevention of 
significant deterioration (PSD) and the good neighbor provision. The 
EPA is not taking action on the Chapter 6, Permitting Requirements, 
Section 14 portion of the May 24, 2012 submittal because it has been 
superseded by a November 6, 2015 submittal (81 FR 35271). The EPA is 
not

[[Page 53366]]

taking action on a May 24, 2012 submittal or a March 8, 2013 submittal 
because they have been superseded by the May 28, 2015 submittal.

DATES: Written comments must be received on or before September 12, 
2016.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R08-
OAR-2016-0366, at http://www.regulations.gov. Follow the online 
instructions for submitting comments. Once submitted, comments cannot 
be edited or removed from Regulations.gov. The EPA may publish any 
comment received to its public docket. Do not submit electronically any 
information you consider to be Confidential Business Information (CBI) 
or other information whose disclosure is restricted by statute. 
Multimedia submissions (audio, video, etc.,) must be accompanied by a 
written comment. The written comment is considered the official comment 
and should include discussion of all points you wish to make. The EPA 
will generally not consider comments or comment contents located 
outside of the primary submission (i.e., on the web, cloud, or other 
file sharing system). For additional submission methods, the full EPA 
public comment policy, information about CBI or multimedia submissions, 
and general guidance on making effective comments, please visit http://www2.epa.gov/dockets/commenting-epa-dockets.

FOR FURTHER INFORMATION CONTACT: Jody Ostendorf, Air Program, U.S. 
Environmental Protection Agency (EPA), Region 8, Mail Code 8P-AR, 1595 
Wynkoop Street, Denver, Colorado 80202-1129, (303) 312-7814, 
[email protected].

SUPPLEMENTARY INFORMATION: 

I. General Information

What should I consider as I prepare my comments for the EPA?

    1. Submitting Confidential Business Information (CBI). Do not 
submit CBI to the 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 on a disk or CD ROM that you mail to the 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:
 Identify the rulemaking by docket number and other identifying 
information (subject heading, Federal Register volume, date, and page 
number);
 Follow directions and organize your comments;
 Explain why you agree or disagree;
 Suggest alternatives and substitute language for your 
requested changes;
 Describe any assumptions and provide any technical information 
and/or data that you used;
 If you estimate potential costs or burdens, explain how you 
arrived at your estimate in sufficient detail to allow for it to be 
reproduced;
 Provide specific examples to illustrate your concerns, and 
suggest alternatives;
 Explain your views as clearly as possible, avoiding the use of 
profanity or personal threats; and,
 Make sure to submit your comments by the comment period 
deadline identified.

II. Analysis of the State Submittals

    In this proposed rulemaking, we are proposing to approve three 
submittals into Wyoming's SIP.

May 28, 2015 Submittals

    The first May 28, 2015 submittal updates Chapter 3, General 
Emission Standards, Section 9, Incorporation by reference, to adopt by 
reference the July 1, 2013 Code of Federal Regulations. This submittal 
supersedes previously submitted updates to Section 9, Incorporation by 
reference. The EPA proposes to approve this submittal.
    The second May 28, 2015 submittal updates Chapter 6, Section 4, 
Prevention of significant deterioration (PSD) program. The submittal 
updates a citation to a Federal Register article (i.e., Federal 
Register notice) under the definition of ``tpy CO2 
equivalent emissions (CO2e).'' The article is available for 
public inspection and can be obtained online at http://www.gpo.gov/fdsys/pkg/FR-2013-11-29/pdf/2013-27996.pdf or at a cost from the 
Department of Environmental Quality, Division of Air Quality, Cheyenne 
Office. Contact information for the Cheyenne Office can be obtained at: 
http://deq.state.wy.us. The EPA is proposing to approve this update.
    The submittal also lists a new minor source baseline date of 
December 12, 2012 for fine particulate for Sweetwater County. On 
October 20, 2010, the EPA published a final rulemaking titled 
``Prevention of Significant Deterioration (PSD) for PM2.5--
Increments, Significant Impact Levels (SILs) and Significant Monitoring 
Concentration'' (75 FR 64864). This rulemaking revised 40 CFR 
51.166(b)(14)(ii) (Definition of Minor Source Baseline Date) to add a 
trigger date of October 20, 2011 for PM2.5. A minor source 
baseline date means the earliest date after the trigger date on which a 
major stationary source or a major modification subject to 40 CFR 
52.21, or 40 CFR 51.166, submits a complete permit application under 
the relevant PSD regulations. The EPA is proposing to approve 
Sweetwater County's minor source baseline date of December 12, 2012.
    The submittal also proposed to update Chapter 6, Section 14, 
Incorporation by reference, to adopt by reference from the July 1, 2013 
CFR. This submittal and previously submitted updates to Section 14, 
Incorporation by reference have been superseded by a November 6, 2015 
rulemaking (81 FR 35271). The EPA is not acting on any updates to 
Chapter 6, Section 14, Incorporation by reference.

November 6, 2015 Submittal

    The November 6, 2015 submittal proposes to revise Chapter 2, 
Section 2, Ambient standards for particulate matter, which establishes 
standards of ambient air quality for particulate matter as necessary to 
protect public health and welfare. This revision updates the primary 
ambient air quality standards for PM2.5 to reflect federal 
updates that went into effect in January 2013. The updated primary 
PM2.5 standard is 12 [micro]g/m\3\ annual arithmetic mean 
concentration, which is lowered from its previous level of 15 [micro]g/
m\3\. The EPA proposes to approve this revision.
    The submittal also proposes to update Chapter 12, Incorporation by 
reference, to adopt by reference the July 1, 2014 CFR. This submittal 
supersedes previously submitted updates to the Chapter 12, 
Incorporation by reference. The EPA proposes to approve this submittal.

February 6, 2014, 2008 Ozone NAAQS Infrastructure Certification

    On March 12, 2008, the EPA promulgated a new NAAQS for ozone, 
revising the levels of the primary and secondary 8-hour ozone standards 
from 0.08 parts per million (ppm) to 0.075 ppm (73 FR 16436, March 27, 
2008).
    Under Sections 110(a)(1) and (2) of the CAA, states are required to 
submit infrastructure SIPs to ensure their SIPs provide for 
implementation,

[[Page 53367]]

maintenance and enforcement of the NAAQS. These submissions must 
contain any revisions needed for meeting the applicable SIP 
requirements of Section 110(a)(2), or certifications that their 
existing SIP already meet those requirements. The EPA is acting upon 
the certification from Wyoming that addresses the infrastructure 
requirements of CAA Sections 110(a)(1) and 110(a)(2)(C) and (D)(i)(II) 
prong 3 for the 2008 ozone NAAQS. The requirement for states to make a 
SIP submission of this type arises out of CAA Section 110(a)(1). 
Pursuant to Section 110(a)(1), states must make SIP submissions 
``within three years (or such shorter period as the Administrator may 
prescribe) after the promulgation of a national primary ambient air 
quality standard (or any revision thereof),'' of such NAAQS. The 
statute directly imposes on states the duty to make these SIP 
submissions, and the requirement to make the submissions is not 
conditioned upon the EPA taking any action other than promulgating a 
new or revised NAAQS.
    The list of required elements provided in Section 110(a)(2) 
contains a wide variety of disparate provisions, some of which pertain 
to required legal authority, substantive program provisions, and both 
authority and substantive programs. The EPA does not believe that an 
action on a state's infrastructure SIP submission is necessarily the 
appropriate type of action to address possible deficiencies in a 
state's existing SIP. These issues include: (i) Existing provisions 
related to excess emissions from sources during periods of startup, 
shutdown, or malfunction (SSM) that may be contrary to the CAA and the 
EPA's policies addressing such excess emissions; (ii) existing 
provisions related to ``director's variance'' or ``director's 
discretion'' that may be contrary to the CAA because they purport to 
allow revisions to SIP-approved emissions limits while limiting public 
process or not requiring further approval by the EPA; and (iii) 
existing provisions for PSD programs that may be inconsistent with 
current requirements of the EPA's ``Final NSR Improvement Rule,'' 67 FR 
80186, Dec. 31, 2002, as amended by 72 FR 32526, June 13, 2007 (``NSR 
Reform'').
    CAA Section 110(a)(1) provides the procedural and timing 
requirements for SIP submissions after a new or revised NAAQS is 
promulgated. Section 110(a)(2) lists specific elements the SIP must 
contain or satisfy. Two elements identified in section 110(a)(2) are 
not governed by the three year submission deadline of Section 110(a)(1) 
and are therefore not addressed in this action. These elements relate 
to part D of Title I of the CAA, and submissions to satisfy them are 
not due within three years after promulgation of a new or revised 
NAAQS, but rather are due at the same time nonattainment area plan 
requirements are due under Section 172. The two elements are: (1) 
Section 110(a)(2)(C) to the extent it refers to permit programs (known 
as ``nonattainment NSR'') required under part D; and (2) Section 
110(a)(2)(I), pertaining to the nonattainment planning requirements of 
part D. As a result, this action does not address infrastructure 
elements related to the nonattainment NSR portion of Section 
110(a)(2)(C) or related to 110(a)(2)(I). Furthermore, the EPA 
interprets the CAA Section 110(a)(2)(J) provision on visibility as not 
being triggered by a new NAAQS because the visibility requirements in 
part C, title 1 of the CAA are not changed by a new NAAQS.
    In this action, the EPA is addressing 110(a)(2)(C), programs for 
enforcement of control measures and for construction or modification of 
stationary sources, and 110(a)(2)(D)(i)(II) element 3 for the 2008 
ozone NAAQS. The EPA is addressing all other elements for the 2008 
ozone NAAQS in a separate rulemaking.
    The Wyoming Department of Environmental Quality (Department or 
WDEQ) submitted certification of Wyoming's infrastructure SIP for the 
2008 ozone NAAQS on February 6, 2014. Wyoming's infrastructure 
certification demonstrates how the State, where applicable, has plans 
in place that meet the requirements of Section 110 for the 2008 ozone 
NAAQS. The Wyoming Air Quality Standards and Regulations (WAQSR) 
referenced in the State's submittal are publicly available at http://soswy.state.wy.us/Rules/default.aspx. Air pollution control regulations 
and statutes that have been previously approved by the EPA and 
incorporated into the Wyoming SIP can be found at 40 CFR 52.2620.
    1. Program for enforcement of control measures: Section 
110(a)(2)(C) requires SIPs to ``include a program to provide for the 
enforcement of the measures described in subparagraph (A), and 
regulation of the modification and construction of any stationary 
source within the areas covered by the plan as necessary to assure that 
[NAAQS] are achieved, including a permit program as required in parts C 
and D.''
    To generally meet the requirements of Section 110(a)(2)(C), the 
State is required to have SIP-approved PSD, nonattainment NSR, and 
minor NSR permitting programs that are adequate to implement the 2008 
ozone NAAQS. As explained elsewhere in this action, the EPA is not 
evaluating nonattainment related provisions, such as the nonattainment 
NSR program required by part D of the Act. The EPA is evaluating the 
State's PSD program as required by part C of the Act, and the State's 
minor NSR program as required by Section 110(a)(2)(C).

Enforcement of Control Measures Requirement

    Wyoming's Rule (02) II, Legal Authority, which the EPA approved 
into Wyoming's SIP,\1\ allows the State to enforce applicable laws, 
regulations, and standards; to seek injunctive relief; and to provide 
authority to prevent construction, modification, or operation of any 
stationary source at any location where emissions from such source will 
prevent the attainment or maintenance of a national standard or 
interfere with prevention of significant deterioration requirements.
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    \1\ See 40 CFR 52.2620(e), Rule No. (02) II; 41 FR 36652 (Aug. 
31, 1976) (approving Wyoming's revisions to its SIP).
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PSD Requirements

    With respect to Element (C), the EPA interprets the CAA to require 
each state to make an infrastructure SIP submission for a new or 
revised NAAQS demonstrating that the air agency has a complete PSD 
permitting program meeting the current requirements for all regulated 
NSR pollutants. The requirements of Element D(i)(II) may also be 
satisfied by demonstrating the air agency has a complete PSD permitting 
program that correctly addresses all regulated NSR pollutants. Wyoming 
has shown that it currently has a PSD program in place that covers all 
regulated NSR pollutants, including greenhouse gases (GHGs).
    On July 25, 2011 (76 FR 44265), we approved a revision to the 
Wyoming PSD program that addressed the PSD requirements of the Phase 2 
Ozone Implementation Rule promulgated on November 29, 2005 (70 FR 
71612). As a result, the approved Wyoming PSD program meets the current 
requirements for ozone.
    With respect to GHG's, on June 23, 2014, the United States Supreme 
Court addressed the application of PSD permitting requirements to GHG 
emissions. Utility Air Regulatory Group v. Environmental Protection 
Agency, 134 S.Ct. 2427 (2014). The Supreme Court held that the EPA may 
not treat GHGs as an air pollutant for purposes of determining whether 
a source is a major source required to obtain a PSD permit.

[[Page 53368]]

The Court also held that the EPA could continue to require that PSD 
permits, otherwise required based on emissions of pollutants other than 
GHGs (anyway sources) contain limitations on GHG emissions based on the 
application of Best Available Control Technology (BACT).
    In accordance with the Supreme Court decision, on April 10, 2015, 
the U.S. Court of Appeals for the District of Columbia Circuit (the 
D.C. Circuit) in Coalition for Responsible Regulation v. EPA, 606 F. 
App'x. 6, at *7-8 (D.C. Cir. April 10, 2015), issued an amended 
judgment vacating the regulations that implemented Step 2 of the EPA's 
PSD and Title V Greenhouse Gas Tailoring Rule, but not the regulations 
that implement Step 1 of that rule. Step 1 of the Tailoring Rule covers 
sources that are required to obtain a PSD permit based on emissions of 
pollutants other than GHGs. Step 2 applied to sources that emitted only 
GHGs above the thresholds triggering the requirement to obtain a PSD 
permit. The amended judgment preserves, without the need for additional 
rulemaking by the EPA, the application of the BACT requirement to GHG 
emissions from Step 1 or ``anyway'' sources.\2\ With respect to Step 2 
sources, the D.C. Circuit's amended judgment vacated the regulations at 
issue in the litigation, including 40 CFR 51.166(b)(48)(v), ``to the 
extent they require a stationary source to obtain a PSD permit if 
greenhouse gases are the only pollutant (i) that the source emits or 
has the potential to emit above the applicable major source thresholds, 
or (ii) for which there is a significant emission increase from a 
modification.''
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    \2\ See 77 FR 41066 (July 12, 2012) (rulemaking for definition 
of ``anyway'' sources).
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    The EPA is planning to take additional steps to revise the federal 
PSD rules in light of the Supreme Court and subsequent D.C. Circuit 
opinion. Some states have begun to revise their existing SIP-approved 
PSD programs in light of these court decisions, and some states may 
prefer not to initiate this process until they have more information 
about the planned revisions to the EPA's PSD regulations. The EPA is 
not expecting states to have revised their PSD programs in anticipation 
of the EPA's planned actions to revise its PSD program rules in 
response to the court decisions.
    At present, the EPA has determined that Wyoming's SIP is sufficient 
to satisfy Elements (C) and (D)(i)(II) prong 3 with respect to GHGs. 
This is because the PSD permitting program previously approved by the 
EPA into the SIP continues to require that PSD permits issued to 
``anyway sources'' contain limitations on GHG emissions based on the 
application of BACT. The EPA most recently approved revisions to 
Wyoming's PSD program on December 6, 2013 (78 FR 73445). The approved 
Utah PSD permitting program still contains some provisions regarding 
Step 2 sources that are no longer necessary in light of the Supreme 
Court decision and D.C. Circuit amended judgment. Nevertheless, the 
presence of these provisions in the previously-approved plan does not 
render the infrastructure SIP submission inadequate to satisfy Elements 
(C) and (D)(i)(II). The SIP contains the PSD requirements for applying 
the BACT requirement to greenhouse gas emissions from ``anyway 
sources'' that are necessary at this time. The application of those 
requirements is not impeded by the presence of other previously-
approved provisions regarding the permitting of Step 2 sources. 
Accordingly, the Supreme Court decision and subsequent D.C. Circuit 
judgment do not prevent the EPA's approval of Wyoming's infrastructure 
SIP as to the requirements of Elements (C) and (D)(i)(II) prong 3.
    Finally, we evaluate the PSD program with respect to current 
requirements for PM2.5. In particular, on May 16, 2008, the 
EPA promulgated the rule, ``Implementation of the New Source Review 
Program for Particulate Matter Less Than 2.5 Micrometers 
(PM2.5)'' (73 FR 28321) (2008 Implementation Rule). On 
October 20, 2010 the EPA promulgated the rule, ``Prevention of 
Significant Deterioration (PSD) for Particulate Matter Less Than 2.5 
Micrometers (PM2.5)--Increments, Significant Impact Levels 
(SILs) and Significant Monitoring Concentration (SMC)'' (75 FR 64864). 
The EPA regards adoption of these PM2.5 rules as a necessary 
requirement when assessing a PSD program for the purposes of Element 
(C).
    On January 4, 2013, the U.S. Court of Appeals, in Natural Resources 
Defense Council v. EPA, 706 F.3d 428 (D.C. Cir.), issued a judgment 
that remanded the EPA's 2007 and 2008 rules implementing the 1997 
PM2.5 NAAQS. The court ordered the EPA to ``repromulgate 
these rules pursuant to Subpart 4 consistent with this opinion.'' Id. 
at 437. Subpart 4 of part D, Title 1 of the CAA establishes additional 
provisions for particulate matter nonattainment areas.
    The 2008 Implementation Rule addressed by Natural Resources Defense 
Council, ``Implementation of New Source Review (NSR) Program for 
Particulate Matter Less Than 2.5 Micrometers (PM2.5),'' (73 
FR 28321, May 16, 2008), promulgated NSR requirements for 
implementation of PM2.5 in nonattainment areas 
(nonattainment NSR) and attainment/unclassifiable areas (PSD). As the 
requirements of Subpart 4 only pertain to nonattainment areas, the EPA 
does not consider the portions of the 2008 Implementation Rule that 
address requirements for PM2.5 attainment and unclassifiable 
areas to be affected by the court's opinion. Moreover, the EPA does not 
anticipate the need to revise any PSD requirements promulgated in the 
2008 Implementation Rule in order to comply with the court's decision. 
Accordingly, the EPA's proposed approval of Wyoming's infrastructure 
SIP as to Elements (C) or (D)(i)(II) prong 3 with respect to the PSD 
requirements promulgated by the 2008 Implementation rule does not 
conflict with the court's opinion.
    The court's decision with respect to the nonattainment NSR 
requirements promulgated by the 2008 Implementation Rule also does not 
affect the EPA's action on the present infrastructure action. The EPA 
interprets the Act to exclude nonattainment area requirements, 
including requirements associated with a nonattainment NSR program, 
from infrastructure SIP submissions due three years after adoption or 
revision of a NAAQS. Instead, these elements are typically referred to 
as nonattainment SIP or attainment plan elements, which would be due by 
the dates statutorily prescribed under subpart 2 through 5 under part 
D, extending as far as 10 years following designations for some 
elements.
    The second PSD requirement for PM2.5 is contained in the 
EPA's October 20, 2010 rule, ``Prevention of Significant Deterioration 
(PSD) for Particulate Matter Less Than 2.5 Micrometers 
(PM2.5)--Increments, Significant Impact Levels (SILs) and 
Significant Monitoring Concentration (SMC)'' (75 FR 64864). The EPA 
regards adoption of the PM2.5 increments as a necessary 
requirement when assessing a PSD program for the purposes of Element 
(C). On July 25, 2011 (76 FR 44265), the EPA approved SIP revisions 
that revised Wyoming's PSD program which incorporated the 2008 
Implementation Rule. The EPA approved revisions to reflect the 2010 
PM2.5 Increment Rule on December 6, 2013 (78 FR 73445). 
Therefore, Wyoming's SIP approved PSD program meets current 
requirements for PM2.5. As a result, the EPA is proposing to 
approve Wyoming's infrastructure SIP for the 2008 ozone NAAQS with 
respect to the requirement in Section

[[Page 53369]]

110(a)(2)(C) to include a permit program in the SIP as required by part 
C of the Act.

Minor NSR

    The State has a SIP-approved minor NSR program, adopted under 
Section 110(a)(2)(C) of the Act. The minor NSR program is found in 
Chapter 6, Section 2 of the WAQSR. The EPA previously approved 
Wyoming's minor NSR program into the SIP (at that time as Chapter 1, 
Section 21), and has subsequently approved revisions to the program, 
and at those times there were no objections to the provisions of this 
program. (See, for example, 47 FR 5892, February 9, 1982). Since then, 
the State and the EPA have relied on the State's existing minor NSR 
program to assure that new and modified sources not captured by the 
major NSR permitting program do not interfere with attainment and 
maintenance of the NAAQS.
    The EPA is proposing to approve Wyoming's infrastructure SIP for 
the 2008 ozone NAAQS with respect to the general requirement in Section 
110(a)(2)(C) to include a program in the SIP that regulates the 
enforcement, modification, and construction of any stationary source as 
necessary to assure that the NAAQS are achieved.
    2. Interstate Transport: CAA Section 110(a)(2)(D)(i)(I) requires 
SIPs to include provisions prohibiting any source or other type of 
emissions activity in one state from emitting any air pollutant in 
amounts that will contribute significantly to nonattainment, or 
interfere with maintenance, of the NAAQS in another state (known as the 
``good neighbor'' provision). The two provisions of this section are 
referred to as prong 1 (significant contribution to nonattainment) and 
prong 2 (interfere with maintenance). Section 110(a)(2)(D)(i)(II) 
requires SIPs to contain adequate provisions to prohibit emissions that 
will interfere with measures required to be included in the applicable 
implementation plan for any other state under part C to prevent 
significant deterioration of air quality (prong 3) or to protect 
visibility (prong 4). In this action, the EPA is addressing prong 3 
with regard to the 2008 ozone NAAQS. The EPA will address all other 
transport prongs in a separate rulemaking.
    With regard to the PSD portion of CAA Section 110(a)(2)(D)(i)(II), 
this requirement may be met by a state's confirmation in an 
infrastructure SIP submission that new major sources and major 
modifications in the state are subject to a comprehensive EPA approved 
PSD permitting program in the SIP that applies to all regulated new 
source review (NSR) pollutants and that satisfies the requirements of 
the EPA's PSD implementation rules.\3\ As noted in the discussion for 
infrastructure Element (C) earlier in this notice, the EPA is proposing 
to approve CAA Section 110(a)(2) Element (C) for Utah's infrastructure 
SIP for the 2008 ozone NAAQS with respect to PSD requirements. As 
discussed in detail in that section, Wyoming's SIP meets the current 
PSD-related requirements of Section 110(a)(2)(C).
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    \3\ See EPA's ``Guidance on Infrastructure State Implementation 
Plan (SIP) Elements under Clean Air Act Sections 110(a)(1) and 
(2),'' September 13, 2013, at 31.
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    In-state sources not subject to PSD for a particular NAAQS because 
they are in a nonattainment area for that standard may also have the 
potential to interfere with PSD in an attainment or unclassifiable area 
of another state.\4\ One way a state may satisfy prong 3 with respect 
to these sources is by citing an air agency's EPA-approved 
nonattainment NSR provisions addressing any pollutants for which the 
state has designated nonattainment areas. Wyoming has a SIP-approved 
nonattainment NSR program which ensures regulation of major sources and 
major modifications in nonattainment areas, and therefore satisfies 
prong 3 with regard to this requirement.\5\
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    \4\ Id. at 31.
    \5\ See WAQSR Chapter 6, Section 13.
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    The EPA is proposing to approve the infrastructure SIP submission 
with regard to the requirements of prong 3 of Section 
110(a)(2)(D)(i)(II) for the 2008 Ozone NAAQS.

III. What action is the EPA taking today?

    The EPA is proposing to approve State Implementation Plan (SIP) 
revisions submitted by the State of Wyoming on May 28, 2015 and 
November 6, 2015. The amendments update the version of the CFR 
incorporated by reference into the rules of the State of Wyoming for 
Chapter 2, Ambient Standards for Particulate Matter, Section 12; and 
Chapter 3, General Emission Standards, Section 9. The EPA is also 
proposing to approve updates to a citation to a Federal Register 
article (i.e., Federal Register notice) under the definition of ``tpy 
CO2 equivalent emissions (CO2e),'' and a new 
minor source baseline date for fine particulate for Sweetwater County 
of December 12, 2012 into WAQSR Chapter 6, Section 4. The EPA proposes 
to approve an update to the primary air quality standards for 
particulate matter (PM)2.5 that reflects federal updates 
that went into effect in January 2013 into WAQSR Chapter 2, Section 2. 
The EPA proposes to approve infrastructure elements (C) and 
(D)(i)(II)prong for the 2008 ozone NAAQS from the State's February 6, 
2014 certification. Finally, the EPA is not taking action on the 
Chapter 6, Permitting Requirements, Section 14 portion of the May 24, 
2012 submittal, the March 8, 2013 submittal, or the May 28, 2015 
submittal because they have been superseded by a November 6, 2015 
submittal (81 FR 35271).

IV. Incorporation by Reference

    In this rule, the EPA is proposing to include in a final EPA rule 
regulatory text that includes incorporation by reference. In accordance 
with requirements of 1 CFR 51.5, the EPA is proposing to incorporate by 
reference the Administrative Rules of Wyoming pertaining to General 
Emission Standards, Prevention of Significant Deterioration and Ambient 
Standards for PM2.5, as discussed in Section II. The EPA has 
made, and will continue to make, these documents generally available 
electronically through www.regulations.gov and/or at the EPA Region 8 
Office (please contact the person identified in the For Further 
Information Contact section of this preamble for more information).

V. Statutory and Executive Order Reviews

    Under the Clean Air Act, the Administrator is required to approve a 
SIP submission that complies with the provisions of the Act and 
applicable Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). 
Thus, in reviewing SIP submissions, EPA's role is to approve state 
choices, provided that they meet the criteria of the Clean Air Act. 
Accordingly, this action merely approves state law as meeting Federal 
requirements and does not impose additional requirements beyond those 
imposed by state law. For that reason, this action:
 Is not a significant regulatory action subject to review by 
the Office of Management and Budget under Executive Orders 12866 (58 FR 
51735, October 4, 1993) and 13563 (76 FR 3821, January 21, 2011);
 does not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
 is certified as not having a significant economic impact on a 
substantial number of small entities under the Regulatory Flexibility 
Act (5 U.S.C. 601 et seq.);

[[Page 53370]]

 does not contain any unfunded mandate or significantly or 
uniquely affect small governments, as described in the Unfunded 
Mandates Reform Act of 1995 (Pub. L. 104-4);
 does not have Federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
 is not an economically significant regulatory action based on 
health or safety risks subject to Executive Order 13045 (62 FR 19885, 
April 23, 1997);
 is not a significant regulatory action subject to Executive 
Order 13211 (66 FR 28355, May 22, 2001);
 is not subject to requirements of Section 12(d) of the 
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 
note) because application of those requirements would be inconsistent 
with the Clean Air Act; and
 does not provide EPA with the discretionary authority to 
address, as appropriate, disproportionate human health or environmental 
effects, using practicable and legally permissible methods, under 
Executive Order 12898 (59 FR 7629, February 16, 1994).
    In addition, 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).

List of Subjects in 40 CFR Part 52

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

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

    Dated: July 28, 2016.
Shaun L. McGrath,
Regional Administrator, Region 8.
[FR Doc. 2016-18869 Filed 8-11-16; 8:45 am]
 BILLING CODE 6560-50-P