Rule2025-20495

Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Michigan State Board Requirements

Primary source

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Published
November 20, 2025
Effective
January 20, 2026

Issuing agencies

Environmental Protection Agency

Abstract

The Environmental Protection Agency (EPA) is approving an element of a State Implementation Plan (SIP) submission from Michigan regarding the infrastructure requirements of section 110 of the Clean Air Act (CAA) for the 2015 ozone National Ambient Air Quality Standards (NAAQS). The infrastructure requirements ensure that the structural components of each State's air quality management program are adequate to meet CAA requirements. This action pertains to CAA section 110(a)(2)(E)(ii).

Full Text

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<title>Federal Register, Volume 90 Issue 222 (Thursday, November 20, 2025)</title>
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[Federal Register Volume 90, Number 222 (Thursday, November 20, 2025)]
[Rules and Regulations]
[Pages 52238-52241]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-20495]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R05-OAR-2019-0215; FRL-13010-02-R5]


Air Plan Approval; Michigan; Infrastructure SIP Requirements for 
the 2015 Ozone NAAQS; Michigan State Board Requirements

AGENCY: Environmental Protection Agency (EPA).

ACTION: Direct final rule.

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SUMMARY: The Environmental Protection Agency (EPA) is approving an 
element of a State Implementation Plan (SIP) submission from Michigan 
regarding the infrastructure requirements of section

[[Page 52239]]

110 of the Clean Air Act (CAA) for the 2015 ozone National Ambient Air 
Quality Standards (NAAQS). The infrastructure requirements ensure that 
the structural components of each State's air quality management 
program are adequate to meet CAA requirements. This action pertains to 
CAA section 110(a)(2)(E)(ii).

DATES: This direct final rule will be effective January 20, 2026, 
unless EPA receives adverse comments by December 22, 2025. If adverse 
comments are 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-R05-
OAR-2019-0215 at <a href="https://www.regulations.gov">https://www.regulations.gov</a> or via email to 
<a href="/cdn-cgi/l/email-protection#d3bfb2bdb4beb2bdfdbebab0bbb2b6bf93b6a3b2fdb4bca5"><span class="__cf_email__" data-cfemail="593538373e3438377734303a31383c35193c2938773e362f">[email&#160;protected]</span></a>. For comments submitted at <a href="http://Regulations.gov">Regulations.gov</a>, 
follow the online instructions for submitting comments. Once submitted, 
comments cannot be edited or removed from the docket. EPA may publish 
any comment received to its public docket. Do not submit electronically 
any information you consider to be Confidential Business Information 
(CBI), Proprietary Business Information (PBI), or other information 
whose disclosure is restricted by statute. Multimedia submissions 
(audio, video, etc.) must be accompanied by a written comment. The 
written comment is considered the official comment and should include 
discussion of all points you wish to make. EPA will generally not 
consider comments or comment contents located outside of the primary 
submission (i.e. on the web, cloud, or other file sharing system). For 
additional submission methods, please contact the person identified in 
the FOR FURTHER INFORMATION CONTACT section. For the full EPA public 
comment policy, information about CBI, PBI, or multimedia submissions, 
and general guidance on making effective comments, please visit <a href="https://wwww.epa.gov/dockets/commenting-epa-dockets">https://wwww.epa.gov/dockets/commenting-epa-dockets</a>.

FOR FURTHER INFORMATION CONTACT: Kelsey Foss, Air and Radiation 
Division (AR-18J), Environmental Protection Agency, Region 5, 77 West 
Jackson Boulevard, Chicago, Illinois 60604, (312) 886-6008, 
<a href="/cdn-cgi/l/email-protection#4b2d24383865202e27382e320b2e3b2a652c243d"><span class="__cf_email__" data-cfemail="1a7c75696934717f76697f635a7f6a7b347d756c">[email&#160;protected]</span></a>. The EPA Region 5 office is open from 8:30 a.m. to 
4:30 p.m., Monday through Friday, excluding Federal holidays.

SUPPLEMENTARY INFORMATION: Throughout this document whenever ``we,'' 
``us,'' or ``our'' is used, we mean EPA.

I. Background

A. What State SIP submission does this rulemaking address?

    This rulemaking addresses a March 8, 2019, submission from the 
Michigan Department of Environment, Great Lakes, and Energy (Michigan 
or EGLE) that meets the infrastructure requirements for the 2015 ozone 
NAAQS. EPA has already acted on all other elements of Michigan's 
infrastructure SIP for the 2015 ozone NAAQS except for this element 
pertaining to State boards.

B. Why did the State make this submission?

    Whenever EPA promulgates a new or revised NAAQS, CAA section 
110(a)(1) requires States to make SIP submissions to provide for the 
implementation, maintenance, and enforcement of the NAAQS. This 
particular type of SIP submission is commonly referred to as an 
``infrastructure SIP.'' These submissions must meet the various 
requirements of CAA section 110(a)(2), as applicable. Due to ambiguity 
in some of the language of CAA section 110(a)(2), EPA believes that it 
is appropriate to interpret these provisions in the specific context of 
acting on infrastructure SIP submissions. EPA has previously provided 
comprehensive guidance on the application of these provisions through a 
guidance document for infrastructure SIP submissions and through 
regional actions on infrastructure submissions.\1\ Unless otherwise 
noted below, we are following that existing approach in acting on this 
submission. In addition, in the context of acting on such 
infrastructure submissions, EPA evaluates a State's SIP revision for 
facial compliance with statutory and regulatory requirements, not for 
the State's implementation of its SIP.\2\ EPA has other authority to 
address any issues concerning a State's implementation of the rules, 
regulations, consent orders, etc. that comprise its SIP.
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    \1\ EPA explains and elaborates on these ambiguities and its 
approach to address them in its September 13, 2013, Infrastructure 
SIP Guidance (available at <a href="https://www3.epa.gov/airquality/urbanair/sipstatus/docs/Guidance_on_Infrastructure_SIP_Elements_Multipollutant_FINAL_Sept_2013.pdf">https://www3.epa.gov/airquality/urbanair/sipstatus/docs/Guidance_on_Infrastructure_SIP_Elements_Multipollutant_FINAL_Sept_2013.pdf</a>), as well as in numerous agency actions, including EPA's prior 
action on Michigan's, Illinois', Minnesota's, and Wisconsin's 
infrastructure SIPs to address the 2008 lead NAAQS (79 FR 27241 (May 
13, 2014)).
    \2\ See U.S. Court of Appeals for the Ninth Circuit decision in 
Montana Environmental Information Center v. EPA, No. 16-71933 (Aug. 
30, 2018).
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II. What is EPA's analysis of the State's submission?

    CAA section 110(a)(2)(E)(ii) requires that each SIP contain 
provisions that comply with the State board requirements of CAA section 
128. Section 128(a) contains two explicit requirements: (1) That any 
board or body which approves permits or enforcement orders under the 
CAA shall have at least a majority of members who represent the public 
interest and do not derive any significant portion of their income from 
persons subject to permits and enforcement orders under the CAA, and 
(2) that any potential conflicts of interest by members of such board 
or body or the head of an executive agency with similar powers be 
adequately disclosed.
    EPA did not act on this portion of Michigan's March 8, 2019, SIP 
submission because Michigan had recently created State boards,\3\ and 
EPA needed time to assess which rules applied to the boards. These 
State boards have since been abolished.\4\
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    \3\ Michigan Public Act 267 of 2018 created the Environmental 
Rules Review Committee. Public Act 267 is available at <a href="https://www.legislature.mi.gov/Bills/Bill?ObjectName=2017-SB-0652">https://www.legislature.mi.gov/Bills/Bill?ObjectName=2017-SB-0652</a>. Michigan 
Public Act 268 of 2018 created the Environmental Permit Review 
Commission. Public Act 268 is available at <a href="https://www.legislature.mi.gov/Bills/Bill?ObjectName=2017-SB-0653">https://www.legislature.mi.gov/Bills/Bill?ObjectName=2017-SB-0653</a>. Public 
Acts 267 and 268 were filed and effective on June 29, 2018.
    \4\ Michigan Executive Order 2024-5, published July 18, 2024, 
and effective September 17, 2024, abolished the Environmental Rules 
Review Committee and the Environmental Permit Review Commission. 
According to Executive Order 2024-5, the authority to hear permit 
review appeals and to approve permits lies wholly with the Director 
of EGLE or the Director's designee. Executive Order 2024-5 is 
available at <a href="https://www.michigan.gov/whitmer/news/state-orders-and-directives/2024/07/18/executive-order-2024-5-executive-reorganization">https://www.michigan.gov/whitmer/news/state-orders-and-directives/2024/07/18/executive-order-2024-5-executive-reorganization</a>.
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    Because Michigan no longer has State boards, CAA section 128(a)(1) 
does not apply to Michigan. Michigan Civil Service Commission Rule 2-
8.3(a)(1) is already contained in Michigan's SIP and fulfills the 
conflict of interest disclosure requirement of CAA section 128(a)(2). 
Thus, EPA finds that Michigan's infrastructure SIP meets the 
requirement of CAA section 110(a)(2)(E)(ii) for the 2015 ozone NAAQS.

III. What action is EPA taking?

    EPA is approving Michigan's March 8, 2019, submission as satisfying 
the requirement of CAA section 110(a)(2)(E)(ii) for the 2015 ozone 
NAAQS.
    We are publishing this action without prior proposal because we 
view this as a noncontroversial amendment and anticipate no adverse 
comments. However, in the proposed rules section

[[Page 52240]]

of this Federal Register publication, we are publishing a separate 
document that will serve as the proposal to approve the State plan if 
relevant adverse written comments are filed. This rule will be 
effective January 20, 2026 without further notice unless we receive 
relevant adverse written comments by December 22, 2025. If we receive 
such comments, we will withdraw this action before the effective date 
by publishing a subsequent document that will withdraw the final 
action. All public comments received will then be addressed in a 
subsequent final rule based on the proposed action. EPA will not 
institute a second comment period. Any parties interested in commenting 
on this action should do so at this time. Please note that if 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, EPA may adopt as final those provisions of the rule that are not 
the subject of an adverse comment. If we do not receive any comments, 
this action will be effective January 20, 2026.

IV. Statutory and Executive Order Reviews

    Under the CAA, the Administrator is required to approve a SIP 
submission that complies with the provisions of the CAA 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 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:
    <bullet> 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);
    <bullet> Is not subject to Executive Order 14192 (90 FR 9065, 
February 6, 2025) because SIP actions are exempt from review under 
Executive Order 12866;
    <bullet> Does not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
    <bullet> 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.);
    <bullet> 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);
    <bullet> Does not have federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
    <bullet> Is not subject to Executive Order 13045 (62 FR 19885, 
April 23, 1997) because it approves a State program;
    <bullet> Is not a significant regulatory action subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001); and
    <bullet> Is not subject to requirements of section 12(d) of the 
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 
note) because application of those requirements would be inconsistent 
with the CAA.
    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).
    This action is subject to the Congressional Review Act, and 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 January 20, 2026. 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 this 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 section 307(b)(2).)

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Incorporation by 
reference, Intergovernmental relations, Nitrogen oxides, Ozone, 
Volatile organic compounds.

    Dated: November 3, 2025.
Anne Vogel,
Regional Administrator, Region 5.

    For the reasons stated in the preamble, title 40 CFR part 52 is 
amended 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.


0
2. In Sec.  52.1170, the table in paragraph (e) is amended under the 
heading ``Infrastructure,'' by revising the entry for ``Section 
110(a)(2) infrastructure requirements for the 2015 ozone NAAQS'' to 
read as follows:


Sec.  52.1170  Identification of plan.

* * * * *
    (e) * * *

                       EPA-Approved Michigan Nonregulatory and Quasi-Regulatory Provisions
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                                                               State
  Name of nonregulatory SIP    Applicable  geographic or     submittal      EPA approval          Comments
          provision                nonattainment area          date             date
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                                                  * * * * * * *
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                                                 Infrastructure
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[[Page 52241]]

 
                                                  * * * * * * *
Section 110(a)(2)              Statewide................        3/8/2019  11/20/2025, 90    Approved CAA
 infrastructure requirements                                               FR [Insert        elements:
 for the 2015 ozone NAAQS.                                                 Federal           110(a)(2)(A), (B),
                                                                           Register page     (C), (D)(i)(II)
                                                                           where the         Prong 3, D(ii),
                                                                           document          (E), (F), (G), (H),
                                                                           begins].          (J), (K), (L), and
                                                                                             (M).
                                                                                            Disapproved CAA
                                                                                             elements:
                                                                                             110(a)(2)(D)(i)(I)
                                                                                             Prongs 1 and 2, and
                                                                                             110(a)(2)(D)(i)(II)
                                                                                             Prong 4.
 
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[FR Doc. 2025-20495 Filed 11-19-25; 8:45 am]
BILLING CODE 6560-50-P


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