Proposed Rule2026-06443

Clean Air Act Operating Permit Program Revision; California; Monterey Bay Air Resources District

Primary source

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Published
April 2, 2026

Issuing agencies

Environmental Protection Agency

Abstract

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Monterey Bay Air Resources District's (MBARD or "District") Title V Operating Permits Program. These revisions remove emergency affirmative defense provisions; align the rule with current title V requirements by removing permitting requirements for greenhouse gases; create procedures for electronic public noticing of permits in addition to newspaper noticing; and update formatting to match the MBARD's current rule format. This action is being taken in accordance with federal regulations and the Clean Air Act (CAA or "Act"). We are taking comments on these proposed revisions and plan to follow with a final action.

Full Text

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<title>Federal Register, Volume 91 Issue 63 (Thursday, April 2, 2026)</title>
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[Federal Register Volume 91, Number 63 (Thursday, April 2, 2026)]
[Proposed Rules]
[Pages 16621-16623]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-06443]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 70

[EPA-R09-OAR-2024-0596; FRL-12507-03-R9]


Clean Air Act Operating Permit Program Revision; California; 
Monterey Bay Air Resources District

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Environmental Protection Agency (EPA) is proposing to 
approve revisions to the Monterey Bay Air Resources District's (MBARD 
or ``District'') Title V Operating Permits Program. These revisions 
remove emergency affirmative defense provisions; align the rule with 
current title V requirements by removing permitting requirements for 
greenhouse gases; create procedures for electronic public noticing of 
permits in addition to newspaper noticing; and update formatting to 
match the MBARD's current rule format. This action is being taken in 
accordance with federal regulations and the Clean Air Act (CAA

[[Page 16622]]

or ``Act''). We are taking comments on these proposed revisions and 
plan to follow with a final action.

DATES: Written comments must be received on or before May 4, 2026.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R09-
OAR-2024-0596 at <a href="https://www.regulations.gov">https://www.regulations.gov</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 
<a href="http://Regulations.gov">Regulations.gov</a>. 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, please contact the person identified in 
the FOR FURTHER INFORMATION CONTACT section. For the full EPA public 
comment policy, information about CBI or multimedia submissions, and 
general guidance on making effective comments, please visit <a href="https://www.epa.gov/dockets/commenting-epa-dockets">https://www.epa.gov/dockets/commenting-epa-dockets</a>. If you need assistance in a 
language other than English or if you are a person with disabilities 
who needs a reasonable accommodation at no cost to you, please contact 
the person identified in the FOR FURTHER INFORMATION CONTACT section.

FOR FURTHER INFORMATION CONTACT: Camille Cassar, EPA Region IX, 75 
Hawthorne St., San Francisco, CA 94105; telephone number: 415-947-4164, 
email address: <a href="/cdn-cgi/l/email-protection#80e3e1f3f3e1f2aee3e1ede9ecece5c0e5f0e1aee7eff6"><span class="__cf_email__" data-cfemail="ee8d8f9d9d8f9cc08d8f838782828bae8b9e8fc0898198">[email&#160;protected]</span></a>.

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

Table of Contents

I. Title V Program Background
II. Requirements for Approval of Revisions to Title V Programs
III. What are the State's proposed title V program revisions?
IV. EPA Evaluation of Title V Program Revision
V. Final Action
VI. Statutory and Executive Order Reviews

I. Title V Program Background

    The CAA Amendments of 1990 include title V, which requires states 
to develop an operating permits program that meets the federal criteria 
codified in 40 CFR part 70. The title V program requires certain 
sources of air pollution to obtain federal operating permits from their 
respective states or air districts. These federal operating permits 
improve enforcement and compliance by consolidating all applicable 
federal requirements into one federally enforceable document. Before a 
state can issue permits under 40 CFR part 70 (which are referred to as 
``title V permits''), the EPA must approve its program under Appendix A 
of 40 CFR part 70. States may submit revisions to their approved 
programs for EPA approval.

II. Requirements for Approval of Revisions to Title V Programs

    Pursuant to 40 CFR 70.4(i), either the EPA or the state may 
initiate a title V program revision ``when relevant Federal or State 
statutes or regulations are modified or supplemented.'' It is the 
responsibility of the state to keep the EPA apprised of any proposed 
modifications to its basic statutory or regulatory authority or 
procedures. Revision of a state program shall be accomplished as 
follows:
    (a) The state submits a modified program description, Attorney 
General's statement (if necessary for expanded or additional 
authority), or other documents as the EPA determines to be necessary. 
40 CFR 70.4(i)(2)(i).
    (b) After the EPA receives a proposed program revision, it will 
publish a notice of the proposed change in the Federal Register and 
provide for a public comment period of at least 30 days. 40 CFR 
70.4(i)(2)(ii).
    (c) The Administrator shall approve or disapprove program revisions 
based on the requirements of 40 CFR part 70 and the Act. 40 CFR 
70.4(i)(2)(iii).
    (d) The EPA must publish a notice of approval in the Federal 
Register for any substantial program revisions. 40 CFR 70.4(i)(2)(iv).
    (e) Approval of nonsubstantial revisions may be given by a letter 
from the Administrator to the Governor or a designee. 40 CFR 
70.4(i)(2)(iv).
    (f) A program revision shall become effective upon the approval of 
the Administrator. 40 CFR 70.4(i)(2)(iv).

III. What are the State's proposed title V program revisions?

    Table 1 lists the rule submitted as part of MBARD's title V program 
revisions and the dates it was adopted by the District and submitted to 
the EPA by the California Air Resources Board (CARB), which is the 
governor's designee for California rule submittals.

                                             Table 1--Submitted Rule
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                Rule No.                             Rule title                Amended date      Submitted date
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218....................................  Title V: Federal Operating                 8/21/2024           9/4/2024
                                          Permits.
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    The MBARD Title V Operating Permit Program is implemented through 
its ``Title V: Federal Operating Permits'' rule, codified as MBARD Rule 
218. On September 5, 2012, the EPA approved the MBARD Title V Operating 
Permit Program, which became effective October 5, 2012. See 77 FR 
54382. On September 4, 2024, MBARD submitted the revisions to Rule 218 
for approval into the district's EPA-approved title V program. MBARD 
made the following revisions to its Rule 218: removed emergency 
affirmative defense provisions; removed permitting requirements for 
greenhouse gases; allowed for electronic noticing in addition to 
newspaper noticing; and updated the rule to match MBARD's current rule 
format. A more detailed discussion of these revisions can be found in 
the Technical Support Document (TSD) for this rule.

IV. EPA Evaluation of Title V Program Revision

    The revisions to Rule 218 include removing emergency affirmative 
defense provisions,\1\ removing permitting

[[Page 16623]]

requirements for greenhouse gases, updating public notice provisions to 
include electronic noticing, and updating the rule to meet current 
District rule formatting. Our TSD provides a detailed discussion of 
each of these revisions and how they meet EPA requirements. The EPA 
finds these revisions acceptable as a title V program revision and 
consistent with part 70 provisions including 40 CFR 70.2 and 40 CFR 
70.7(h)(1).
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    \1\ On September 5, 2025, the Court of Appeals for the D.C. 
Circuit issued a decision in SSM Litigation Group v. EPA rejecting 
the legal bases for EPA's July 2023 final rule concerning 
``emergency'' affirmative defense provisions in title V permits (88 
FR 47029, July 21, 2023) and reversing that final rule. SSM 
Litigation Group v. EPA, et al., 150 F.4th 593 (D.C. Cir. 2025), 
reh'g denied. Because SSM Litigation Group does not prohibit states 
from removing affirmative defense provisions from their title V 
programs, we are proceeding with this proposal to remove these 
provisions from MBARD's Title V Operating Permit Program consistent 
with MBARD's request. For additional information, please see the TSD 
in the docket for this action.
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V. Proposed Action

    Pursuant to 40 CFR 70.4(i)(2), the EPA is proposing to approve the 
revisions to the MBARD Title V Operating Permit Program submitted on 
September 4, 2024, which removes emergency affirmative defense 
provisions, allows for e-noticing, aligns the rule with current title V 
requirements including removing requirements for greenhouse gases, and 
updates the rule to match MBARD's rule format. The revisions meet the 
requirements of section 502 of the CAA and 40 CFR 70.4 and 70.9. The 
EPA is soliciting public comments on the revisions discussed in this 
document.

VI. Statutory and Executive Order Reviews

A. General Requirements

    Under the CAA, the Administrator is required to approve title V 
operating permit program revisions that comply with the Act and 
applicable federal regulations. See 42 U.S.C. 7661a(d). Thus, in 
reviewing title V permit program 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:
    <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 it is not a significant regulatory action 
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 an economically significant regulatory action based 
on health or safety risks subject to Executive Order 13045 (62 FR 
19885, April 23, 1997);
    <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.
    This rule does not have tribal implications as specified by 
Executive Order 13175 (65 FR 67249, November 9, 2000), because the 
Title V action is not approved to apply in Indian country located in 
the State, and the EPA notes that it will not impose substantial direct 
costs on tribal governments or preempt tribal law.

List of Subjects in 40 CFR Part 70

    Environmental protection, Administrative practice and procedure, 
Air pollution control, Carbon monoxide, 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: March 20, 2026.
Michael Martucci,
Acting Regional Administrator, Region IX.
[FR Doc. 2026-06443 Filed 4-1-26; 8:45 am]
BILLING CODE 6560-50-P


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Indexed from Federal Register on April 2, 2026.

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