[Federal Register Volume 90, Number 88 (Thursday, May 8, 2025)]
[Rules and Regulations]
[Pages 19424-19426]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-07938]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R08-OAR-2024-0622; FRL-12746-02-R8]


Air Plan Approval; Colorado; Interim Final Determination To Stay 
and Defer Sanctions in the Denver Metro/North Front Range 2008 Ozone 
Nonattainment Area

AGENCY: Environmental Protection Agency (EPA).

ACTION: Interim final determination.

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SUMMARY: In the Proposed Rules section of this Federal Register, EPA is 
proposing approval of portions of State Implementation Plan (SIP) 
submissions from the State of Colorado dated June 26, 2023, May 23, 
2024, and April 2, 2025. The submissions relate to Colorado Air Quality 
Control Commission Regulation Number 7 (Reg.

[[Page 19425]]

7) and Regulation Number 25 (Reg. 25) and address Colorado's SIP 
obligations for the contingency measures Serious ozone nonattainment 
area requirement for the 2008 ozone National Ambient Air Quality 
Standard (NAAQS). In this action, the EPA is making an interim final 
determination based on that proposed approval. The effect of this 
interim final determination is that the imposition of sanctions that 
were triggered by the EPA's November 7, 2023 disapproval are now 
deferred. Although this action is effective upon publication, the EPA 
will take comment on this interim final determination.

DATES: This interim final determination is effective May 8, 2025. 
However, comments will be accepted until June 9, 2025.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R08-
OAR-2024-0622, to the Federal Rulemaking Portal: https://www.regulations.gov. Follow the online instructions for submitting 
comments. Once submitted, comments cannot be edited or removed from 
https://www.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 https://www2.epa.gov/dockets/commenting-epa-dockets.
    Docket: All documents in the docket are listed in the https://www.regulations.gov index. Although listed in the index, some 
information is not publicly available, e.g., CBI or other information 
whose disclosure is restricted by statute. Certain other material, such 
as copyrighted material, will be publicly available only in hard copy. 
Publicly available docket materials are available electronically in 
https://www.regulations.gov. Please email or call the person listed in 
the FOR FURTHER INFORMATION CONTACT section if you need to make 
alternative arrangements for access to the docket.

FOR FURTHER INFORMATION CONTACT: Matthew Lang, Air and Radiation 
Division, EPA, Region 8, Mailcode 8ARD-AQ-R, 1595 Wynkoop Street, 
Denver, Colorado 80202-1129, telephone number: (303) 312-6709, email 
address: [email protected].

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

I. Background

    On November 7, 2023, the EPA took final action disapproving 
portions of the 2008 8-hour ozone serious attainment plan for the 
Denver Metro/North Front Range (DMNFR) nonattainment area that were 
submitted by the State of Colorado on March 22, 2021.\1\ The State made 
the SIP submission in part to meet the contingency measures Serious 
ozone nonattainment plan requirement for the DMNFR area, as required 
under sections 172(c)(9) and 182(c)(9) of the Clean Air Act (CAA). On 
April 2, 2025, Colorado submitted SIP revisions to address the 
disapproved contingency measures requirement. In the Proposed Rules 
section of this Federal Register, the EPA has proposed to approve 
portions of Colorado's June 26, 2023, May 23, 2024, and April 2, 2025 
SIP submittals that include SIP revisions needed to fully address the 
disapproved contingency measures requirement.
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    \1\ Final rule, Air Plan Approval and Disapproval; Colorado; 
Serious Attainment Plan Elements and Related Revisions for the 2008 
8-Hour Ozone Standard for the Denver Metro/North Front Range 
Nonattainment Area, 88 FR 76676 (Nov. 7, 2024).
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II. What action is the EPA taking?

    We are making an interim final determination to defer application 
of the offset sanction for permitting of new or modified sources and 
highway sanctions under CAA section 179 that are associated with the 
November 7, 2023 disapproval. Under 40 CFR 52.31(d)(2)(i), if the State 
has submitted a revised plan to correct the deficiencies identified in 
the disapproval actions, and the EPA proposes to fully or conditionally 
approve the plan and issues an interim final determination that the 
revised plan corrects the identified deficiencies, application of the 
offset sanction for permitting of new and modified sources and highway 
sanctions shall be deferred. If not deferred, the offset sanction for 
permitting of new and modified sources would apply on June 7, 2025 for 
the November 7, 2023 contingency measures disapproval in the DMNFR 
nonattainment area. Additionally, highway sanctions would apply on 
December 7, 2025, for the disapproval.
    Based on the proposed approval of portions of Colorado's June 26, 
2023, May 23, 2024, and April 2, 2025 SIP submittals set forth in this 
document, Colorado has made revisions that adequately address the EPA's 
disapproval relating to contingency measures. This interim final 
determination is consistent with the requirements of the Administrative 
Procedure Act (APA) \2\ for federal agency rulemaking. Generally, under 
the APA, agency rulemaking affecting the rights of individuals must 
comply with certain minimum procedural requirements, including 
publishing a notice of proposed rulemaking in the Federal Register and 
providing an opportunity for the public to submit written comments on 
the proposal before the rulemaking can have final effect.\3\ While in 
this matter the EPA is not providing an opportunity for public comment 
before the deferral of CAA section 179 sanctions is effective, the EPA 
is providing an opportunity, after the fact, for the public to comment 
on the interim final determination. The EPA will consider any comments 
received in determining whether to reverse the interim final 
determination. Additionally, the EPA is providing an opportunity to 
comment on the proposed approval, within a separate action, that is the 
basis for this interim final determination, so the public has an 
opportunity to comment on that action before any sanctions clock could 
be permanently terminated.
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    \2\ 5 U.S.C. 551 et seq.
    \3\ See 5 U.S.C. 553(b)-(d).
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    The basis for allowing such an interim final action stems from the 
APA, which provides that the notice and opportunity for comment 
requirements do not apply when the Agency ``for good cause finds'' that 
those procedures are ``impracticable, unnecessary, or contrary to the 
public interest.'' \4\ The EPA believes that notice-and-comment 
rulemaking before the effective date of this action is impracticable 
and contrary to the public interest. The EPA has reviewed the State's 
SIP submissions, and for the reasons explained further in its proposed 
action the EPA believes that it is more likely than not that the 
State's submissions adequately address the Serious nonattainment area 
contingency measures requirement for the 2008 ozone NAAQS. This is 
accomplished by the State adopting an approvable contingency measure, 
and through the inclusion of an infeasibility justification that 
provides a reasoned explanation for why it is not feasible for Colorado 
to adopt contingency measures

[[Page 19426]]

achieving emission reductions in the amount recommended by EPA. 
Accordingly, CAA sanctions would not serve their intended purpose of 
encouraging the state to develop a better SIP. The EPA also believes 
that the risk of an inappropriate deferral is comparatively small, 
given the limited scope of a deferral and given that sanctions would 
become effective pursuant to 40 CFR 52.31(d)(2)(i) in the event the EPA 
reverses its determination that the State has corrected the 
deficiencies. Consequently, the EPA finds that the ``good cause'' 
exception to the APA notice and comment requirement applies, and that 
notice and comment procedures are not required before the deferral and 
stay of sanctions become effective.
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    \4\ 5 U.S.C. 553(b)(B).
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    The EPA is also invoking the ``good cause'' exception to the 30-day 
publication requirement of the APA. Section 553(d)(1) of the APA 
provides that final rules shall not become effective until 30 days 
after publication in the Federal Register ``except . . . a substantive 
rule which grants or recognizes an exemption or relieves a 
restriction.'' \5\ The purpose of this provision is to ``give affected 
parties a reasonable time to adjust their behavior before the final 
rule takes effect.'' \6\ However, when the agency grants or recognizes 
an exemption or relieves a restriction, affected parties do not need a 
reasonable time to adjust because the effect is not adverse. Because 
this rule relieves a restriction, in that it defers imposition of 
sanctions upon the state, the EPA finds that there is good cause under 
5 U.S.C. 553(d)(1) for this action to become effective on the date of 
publication of this action.
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    \5\ 5 U.S.C. 553(d).
    \6\ Omnipoint Corp. v. Fed. Commc'n Comm'n, 78 F.3d 620, 630 
(D.C. Cir. 1996); see also United States v. Gavrilovic, 551 F.2d 
1099, 1104 (8th Cir. 1977) (quoting legislative history).
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    As explained above, the EPA is making this interim final 
determination based on our concurrent proposal to approve portions of 
Colorado's June 26, 2023, May 23, 2024, and April 2, 2025 SIP 
submittals that correct the deficiencies identified in our November 7, 
2023 disapproval action with respect to the adequacy of contingency 
measures submitted by Colorado for the Serious nonattainment 
requirement in the DMNFR area under the 2008 ozone NAAQS. If the EPA 
does not finalize the approval as proposed and instead disapproves or 
proposes to disapprove these SIP revisions, then the offset sanction 
for permitting of new and modified sources under CAA section 179(b)(2) 
would apply in the affected area on the later of: (1) the date the EPA 
issues such a proposed or final disapproval; or (2) June 7, 2025 (i.e., 
18 months from the effective date of the finding that started the 
original sanctions clock).\7\ Subsequently, highway sanctions under 
section 179(b)(1) would apply in the affected area six months after the 
date the offset sanction applies.\8\
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    \7\ See 40 CFR 52.31(d)(2)(i). In this case, the finding that 
started the original sanctions clock was the disapproval issued on 
November 7, 2023, which was effective on December 7, 2023.
    \8\ See id.
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III. Statutory and Executive Order Reviews

    This action defers Federal sanctions and imposes no additional 
requirements. 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);
     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 CAA.
    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. 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 (CRA), 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). However, section 808 provides 
that any rule for which the issuing agency for good cause finds that 
notice and public procedure thereon are impracticable, unnecessary, or 
contrary to the public interest, shall take effect at such time as the 
agency promulgating the rule determines. 5 U.S.C. 808(2). The EPA has 
made such a good cause finding, including the reasons thereof, and 
established an effective date of May 8, 2025.
    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 7, 2025. Filing a petition for 
reconsideration by the Administrator of this final rule does not affect 
the finality of this rule 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, 
Greenhouse gases, 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: April 21, 2025.
Cyrus M. Western,
Regional Administrator, Region 8.
[FR Doc. 2025-07938 Filed 5-7-25; 8:45 am]
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