[Federal Register Volume 90, Number 95 (Monday, May 19, 2025)]
[Rules and Regulations]
[Pages 21232-21236]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-08734]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R06-OAR-2021-0480; FRL-10676-03-R6]


Air Plan Approval; Texas; New Source Review Updates for Project 
Emissions Accounting

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: Pursuant to the Federal Clean Air Act (CAA or the Act), the 
Environmental Protection Agency (EPA) is approving portions of a 
revision to the Texas State Implementation Plan (SIP) submitted by the 
Texas Commission on Environmental Quality (TCEQ) on July 9, 2021. The 
revision includes updates to the Texas Prevention of Significant 
Deterioration (PSD) and Nonattainment New Source Review (NNSR) 
permitting programs to incorporate Federal New Source Review (NSR) 
regulations for Project Emissions Accounting (PEA).

[[Page 21233]]


DATES: This rule is effective on June 18, 2025.

ADDRESSES: The EPA has established a docket for this action under 
Docket ID No. EPA-R06-OAR-2021-0480. All documents in the docket are 
listed on the https://www.regulations.gov website. Although listed in 
the index, some information is not publicly available, e.g., 
Confidential Business Information or other information whose disclosure 
is restricted by statute. Certain other material, such as copyrighted 
material, is not placed on the internet. Publicly available docket 
materials are available electronically through https://www.regulations.gov.

FOR FURTHER INFORMATION CONTACT: Adina Wiley, EPA Region 6 Office, Air 
Permits Section (ARPE), 214-665-2115, [email protected]. Please call 
or email the contact listed above if you need alternative access to 
material indexed but not provided in the docket.

SUPPLEMENTARY INFORMATION: Throughout this document ``we,'' ``us,'' and 
``our'' means the EPA.

I. Background

    The EPA finalized the PEA Rule on November 24, 2020 (85 FR 74890) 
to clarify permitting requirements for existing major stationary 
sources. An existing major stationary source proposing a physical 
change or a change in the method of operation (i.e., a ``project'') 
must determine whether that project is a major modification subject to 
major NSR preconstruction permitting requirements by following a two-
step applicability test. The first step is to determine if the proposed 
project would result in a ``significant emission increase'' of a 
regulated NSR pollutant (Step 1). If there is, the second step is to 
determine if the project would also result in a ``significant net 
emission increase'' of that pollutant (Step 2).
    The PEA Rule maintained this two-step applicability test while 
clarifying that both increases and decreases in emissions resulting 
from a proposed project can be considered in Step 1 of the NSR major 
modification applicability test.\1\ More specifically, the PEA Rule 
made this clarification in language addressing the ``hybrid test'' for 
projects that involve a combination of new and existing units by 
replacing the phrase ``sum of the increases'' with the phrase ``sum of 
the difference.'' \2\ The PEA Rule also explained that the revised term 
``sum of the difference,'' would apply to ``all emissions units'' 
instead of ``for each emissions unit'' to better account for projects 
that involve multiple types of emission units.\3\ Finally, the PEA Rule 
added regulatory text to clarify that the term ``sum of the 
difference'' as used in the referenced paragraphs shall include both 
increases and decreases in emissions as calculated in accordance with 
those paragraphs.\4\
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    \1\ 85 FR 74893 (November 24, 2020).
    \2\ Id. at 74894.
    \3\ Id.
    \4\ Id.
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    When the EPA finalized changes in the PEA Rule, the Agency 
responded to adverse comments received on the changes as proposed. 
Since that time, two petitions for judicial review of the PEA Rule were 
filed in the United States Court of Appeals for the District of 
Columbia Circuit (D.C. Circuit).\5\ However, this does not impede 
finalization of separate actions, including this rulemaking approving 
revisions to the Texas PSD and NNSR regulations.
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    \5\ See Environmental Defense Fund v. EPA, 21-1039 (D.C. Cir.); 
State of New Jersey v. EPA, 21-1033 (D.C. Cir. 2021).
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    On March 6, 2023, the EPA proposed approval of portions of the July 
9, 2021, Texas SIP submittal to update the PSD and NNSR permitting 
programs to provide for project emissions accounting (88 FR 13572).\6\ 
Based on relevant adverse comments, the EPA supplemented our proposed 
approval on October 11, 2024 (89 FR 82560), with respect to the EPA's 
evaluation of the Texas SIP submittal and the anti-backsliding 
requirements of the CAA sections 110(l) and 193.
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    \6\ EPA notes that the July 9, 2021, Texas SIP submittal also 
included revisions to, and repeal of, other provisions within 30 
Texas Administrative Code Chapter 116 that were not relevant to 
Project Emissions Accounting. The EPA took separate action to 
finalize those revisions in the Federal Register at 88 FR 57882, 
August 24, 2023. See also the rulemaking docket EPA-R06-OAR-2022-
0307.
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II. Response to Comments

    Comments on the EPA's March 6, 2023, proposed rulemaking were due 
by April 5, 2023. We received supportive comment letters from the TCEQ 
on April 4, 2023, and from Baker Botts L.L.P. on behalf of the Texas 
Industry Project on April 5, 2023. We appreciate the commenters' 
support and will not further address these comments. We also received a 
comment letter and supplemental documents dated April 5, 2023, from Air 
Law for All submitted on behalf of the Center for Biological Diversity, 
Sierra Club Environmental Law Program, Natural Resources Defense 
Council, Environmental Integrity Project, Powell Environmental Law LLC, 
Air Law for All Ltd., and Environmental Defense Fund. The comment 
letter opposes approval of the changes in the July 9, 2021, Texas SIP 
to provide for project emissions accounting in the Texas PSD and NNSR 
permitting program.
    Comments on the October 11, 2024 (89 FR 82560), supplemental 
proposed approval were due by November 12, 2024. We received supportive 
comments from an anonymous commenter dated October 15, 2024, and the 
Texas Chemistry Council dated November 12, 2024; we appreciate the 
commenters' support and will not further address these comments. The 
TCEQ also submitted supportive comments on November 12, 2024, with 
specific clarifications to the EPA's evaluation of the minor NSR 
mechanisms approved in the Texas SIP.
    Comment 1: The Commenter states that ``[e]ven under EPA's 2020 
[PEA] rule, EPA cannot approve [Texas's] plan revision without a 
requirement that a project consist of `substantially related' 
activities.'' The Commenter suggests that the July 9, 2021, submission 
fails to include a requirement that projects consist of substantially 
related activities.
    The Commenter states that the EPA relies on its January 15, 2009, 
rulemaking \7\ (hereafter referred to as the 2009 NSR Aggregation 
Action, or the 2009 Action) in the PEA Rule to interpret ``major NSR 
regulations as requiring that a project consist of `substantially 
related' activities.'' The Commenter asserts that the EPA cannot 
approve Texas's SIP revision without requiring the State to revise its 
SIP to conform with the EPA's interpretation of the 2009 action 
referenced in the PEA Rule. The Commenter further asserts that this 
requirement must be made part of the SIP so that it can be enforced by 
EPA and citizens pursuant to CAA sections 113 and 304. In the 
background section of its comments, the Commenter also states that this 
concern is ``primarily a matter for the D.C. Circuit Court of 
Appeals,'' where the PEA Rule is currently being challenged.
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    \7\ See 74 FR 2376.
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    Response 1: The EPA requires NNSR and PSD SIP revisions to meet or 
exceed the minimum requirements codified at 40 CFR 51.165 and 51.166, 
respectively. The Texas SIP is approved as meeting the minimum PSD and 
NNSR program requirements.\8\
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    \8\ See the approved Texas SIP at 40 CFR 52.2270.
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    The Commenter focuses not on whether Texas's proposed PSD and NNSR 
SIP revisions comply with the EPA's minimum standards for PSD and NNSR 
plans codified at 40 CFR 51.165 and 51.166. Rather, the comments are 
directed at the substance of the PEA Rule itself. The Commenter, for

[[Page 21234]]

example, explicitly takes the position that ``EPA's 2020 Rule is 
unlawful.''
    The time for submitting comments on the PEA Rule was when the EPA 
notified the public that it was considering adopting that rule and 
requested the public's input.\9\ The Commenter did not submit comments 
on the PEA Rule and the EPA thus views the comments as untimely 
comments on the PEA Rule itself.\10\ The EPA addressed concerns 
regarding project aggregation in response to comments by other parties 
in that rulemaking action. See 85 FR 74890, 74898-900 (November 24, 
2020). As noted by the Commenter, these concerns are ``primarily a 
matter for the D.C. Circuit Court of Appeals,'' where the PEA Rule is 
currently being challenged by States and organizations other than the 
Commenter.
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    \9\ See 84 FR 39244 (August 9, 2019).
    \10\ As the Commenter also notes, litigation regarding the PEA 
Rule has been filed in the D.C. Circuit. The Commenter is not a 
party to that suit. Congress established a jurisdictional bar for 
judicial review of EPA rulemakings which states that ``[a]ny 
petition for review under this subsection shall be filed within 
sixty days from the date notice of such promulgation, approval, or 
action appears in the Federal Register, except that if such petition 
is based solely on grounds arising after such sixtieth day, then any 
petition for review under this subsection shall be filed within 
sixty days after such grounds arise.'' CAA Subsection 307(b)(1). 
This language further indicates that submitting comments on a 
State's implementation of a preexisting EPA rule is an improper 
method to challenge the EPA's underlying rule--such comments (and 
any related judicial review) must be submitted on the underlying 
rule itself.
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    In the EPA's March 6, 2023, notice of proposed rulemaking, we did 
not propose to revise the minimum standards within 40 CFR 51.165 or 
51.166, and the EPA did not seek comment on the PEA Rule, which EPA 
finalized in 2020. Rather, the EPA explained that ``we are proposing to 
approve the submitted revisions to the Texas SIP that update the PSD 
and NNSR permitting requirements to maintain consistency with the 
Federal NSR program requirements by adopting the provisions for PEA'' 
and the EPA sought the public's comments on this preliminary 
determination. See 88 FR 13752. The Commenter does not engage with the 
question of whether Texas's proposed SIP revision (and the EPA's 
proposal to approve this SIP revision) complies with the EPA's minimum 
NSR standards, and therefore, these comments do not demonstrate that 
the EPA may not approve the SIP revision. The Commenter's position is 
also based on an erroneous reading of the PEA Rule. The PEA Rule 
preamble states that ``state and local air agencies with approved SIPs 
are and were not required to amend their plans to adopt the 
interpretation that projects should be aggregated when `substantially 
related.' '' See 85 FR 74895, FN 57 (November 24, 2020).\11\
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    \11\ Footnote 57 cites to the memorandum from the EPA 
Administrator E. Scott Pruitt to Regional Administrators, titled 
``Project Emissions Accounting Under the New Source Review 
Preconstruction Permitting Program,'' March 13, 2018 (``March 2018 
Memorandum'') available at: https://www.epa.gov/sites/production/files/2018-03/documents/nsr_memo_03-13-2018.pdf.
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    Comment 2: The Commenter states that ``EPA's proposed approval 
violates the anti-backsliding provisions of the Act.'' Specifically, 
the Commenter asserts that adopting the PEA Rule would weaken the 
stringency of Texas's SIP. The Commenter asserts that Texas's revision 
to the project emissions accounting portion of its rules is a 
``substantive change to previous applicability requirements'' and that 
the EPA must therefore provide an air quality analysis demonstrating 
that the change to the Texas SIP will not violate section 110(l) and 
section 193 of the Act.
    Response 2: The EPA published a supplemental notice of proposed 
rulemaking (SNPRM) on October 11, 2024 (89 FR 82560), to provide our 
evaluation of the July 9, 2021, Texas SIP revision anti-backsliding 
demonstration under CAA sections 110(l) and 193. In this SNPRM we 
presented the TCEQ's anti-backsliding argument and evaluated the 
approved Texas minor NSR permitting mechanisms as substitute measures 
under CAA sections 110(l) and 193. We concluded in this SNPRM that the 
demonstration provided by the TCEQ and the Texas SIP-approved minor NSR 
program are adequate substitute measures to maintain the status quo air 
quality and protect human health and the environment.\12\ The TCEQ 
submitted a comment letter on November 12, 2024, agreeing with the 
EPA's evaluation of the approved minor NSR mechanisms and providing 
additional information about the SIP-approved public notice provisions 
for permits by rule.
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    \12\ See the discussion at 89 FR 82562 and 82563 (October 11, 
2024).
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    Comment 3: The Commenter asserts that the EPA should not act on the 
July 9, 2021, Texas SIP revision while pending litigation exists 
concerning the PEA Rule. The Commenter states that the EPA provides no 
explanation of the manner at which it would reverse an approved 
revision should EPA rescind, or a court vacate, the PEA Rule.
    Response 3: The EPA disagrees with the Commenter that, while 
litigation is ongoing on the PEA Rule, EPA should not act on the Texas 
plan revision. The PEA Rule, published on November 24, 2020 (85 FR 
74890), has been incorporated into the Federal regulations addressing 
major new source review. Texas's July 9, 2021, submission merely adopts 
provisions consistent with federally approved regulations. 
Implementation of this rule has not been stayed by the court. In the 
event the EPA or the court takes an action that affects the PEA Rule 
and therefore the EPA NSR regulations, the EPA has tools available to 
ensure that SIPs remain compliant with the EPA's rules.

III. Final Action

    Pursuant to section 110 of the Act, we are approving the submitted 
revisions to the Texas SIP that update the PSD and NNSR permitting 
requirements to maintain consistency with the Federal NSR program 
requirements by adopting the provisions for PEA. Our analysis found 
that the submitted revisions are consistent with the CAA and the EPA's 
regulations, policy, and guidance for permitting SIP requirements. The 
EPA is approving the following revisions adopted on June 9, 2021, 
effective on July 1, 2021, submitted to the EPA on July 9, 2021:
     Revisions to 30 TAC Section 116.12--Nonattainment and 
Prevention of Significant Deterioration Review Definitions,
     Revisions to 30 TAC Section 116.150--New Major Source or 
Major Modification in Ozone Nonattainment Areas,
     Revisions to 30 TAC Section 116.151--New Major Source or 
Major Modification in Nonattainment Area Other than Ozone, and
     Revisions to 30 TAC Section 116.160--Prevention of 
Significant Deterioration.

IV. 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 the 
revisions to the Texas regulations as described in section III of this 
preamble, final action. The EPA has made, and will continue to make, 
these materials generally available through www.regulations.gov (please 
contact the person identified in the FOR FURTHER INFORMATION CONTACT 
section of this preamble for more information). Therefore, these 
materials have been approved by EPA for inclusion in the SIP, have been 
incorporated by reference by the EPA into that plan, are fully 
federally

[[Page 21235]]

enforceable under sections 110 and 113 of the CAA as of the effective 
date of the final rulemaking of the EPA's approval, and will be 
incorporated by reference in the next update to the SIP compilation.

V. Statutory and Executive Order Reviews

    Under the CAA, the Administrator is required to approve a SIP 
submission that complies with the provisions of the Act and applicable 
Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). Thus, in 
reviewing SIP submissions, the EPA's role is to approve state choices, 
provided that they meet the criteria of the CAA. 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 Order 12866 (58 
FR 51735, October 4, 1993);
     Is not subject to Executive Order 14192 (90 FR 9065, 
February 6, 2025) because SIP actions are exempt from review under 
Executive Order 12866;
     Does not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
     Is certified as not having a significant economic impact 
on a substantial number of small entities under the Regulatory 
Flexibility Act (5 U.S.C. 601 et seq.);
     Does not contain any unfunded mandate or significantly or 
uniquely affect small governments, as described in the Unfunded 
Mandates Reform Act of 1995 (Pub. L. 104-4);
     Does not have federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
     Is not subject to Executive Order 13045 (62 FR 19885, 
April 23, 1997) because it approves a state program;
     Is not a significant regulatory action subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001); and
     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.
    In addition, the SIP is not approved to apply on any Indian 
reservation land or in any other area where the 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 is subject to the Congressional Review Act, and the EPA 
will submit a rule report to each House of the Congress and to the 
Comptroller General of the United States. This action is not a ``major 
rule'' as defined by 5 U.S.C. 804(2).
    Under section 307(b)(1) of the CAA, petitions for judicial review 
of this action must be filed in the United States Court of Appeals for 
the appropriate circuit by July 18, 2025. 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. This action may not be challenged later in proceedings to 
enforce its requirements. (See section 307(b)(2).)

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.

    Dated: May 7, 2025.
Walter Mason,
Regional Administrator, Region 6.
    For the reasons stated in the preamble, the Environmental 
Protection Agency amends 40 CFR part 52 as follows:

PART 52--APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS

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

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

Subpart SS--Texas

0
2. In Sec.  52.2270(c), the table titled ``EPA Approved Regulations in 
the Texas SIP'' is amended by revising the entries for Sections 116.12, 
116.150, 116.151, and 116.160 to read as follows:


Sec.  52.2270  Identification of plan.

* * * * *
    (c) * * *

                                    EPA Approved Regulations in the Texas SIP
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                                                     State approval/
         State citation            Title/subject      submittal date   EPA approval date        Explanation
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                                                  * * * * * * *
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          Chapter 116 (Reg 6)--Control of Air Pollution by Permits for New Construction or Modification
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                                                  * * * * * * *
Section 116.12.................  Nonattainment and          6/09/2021  5/19/2025, 90 FR   ......................
                                  Prevention of                         [INSERT FEDERAL
                                  Significant                           REGISTER PAGE
                                  Deterioration                         WHERE THE
                                  Review                                DOCUMENT BEGINS].
                                  Definitions.
 
                                                  * * * * * * *
Section 116.150................  New Major Source           6/09/2021  5/19/2025, 90 FR   ......................
                                  or Major                              [INSERT FEDERAL
                                  Modification in                       REGISTER PAGE
                                  Ozone                                 WHERE THE
                                  Nonattainment                         DOCUMENT BEGINS].
                                  Area.
Section 116.151................  New Major Source           6/09/2021  5/19/2025, 90 FR   ......................
                                  or Major                              [INSERT FEDERAL
                                  Modification in                       REGISTER PAGE
                                  Nonattainment                         WHERE THE
                                  Area Other than                       DOCUMENT BEGINS].
                                  Ozone.
 

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                                                  * * * * * * *
Section 116.160................  Prevention of              6/09/2021  5/19/2025, 90 FR   THE PSD SIP INCLUDES
                                  Significant                           [INSERT FEDERAL    30 TAC SECTION
                                  Deterioration.                        REGISTER PAGE      116.160(A) AS Adopted
                                                                        WHERE THE          by the State as of 6/
                                                                        DOCUMENT BEGINS].  2/2010. The PSD SIP
                                                                                           includes a letter
                                                                                           from the TCEQ dated
                                                                                           December 2, 2013,
                                                                                           committing that Texas
                                                                                           will follow a SIP
                                                                                           amendment process to
                                                                                           apply its PSD SIP to
                                                                                           additional pollutants
                                                                                           that are regulated in
                                                                                           the future, including
                                                                                           non-NAAQS pollutants.
                                                                                           The PSD SIP includes
                                                                                           a letter from the
                                                                                           TCEQ dated May 30,
                                                                                           2014, clarifying the
                                                                                           judicial review
                                                                                           process for the Texas
                                                                                           PSD permit program.
 
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[FR Doc. 2025-08734 Filed 5-16-25; 8:45 am]
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