Air Plan Approval; Wyoming; R-35 Wyoming Air Quality Standards and Regulations Rule Package
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Issuing agencies
Abstract
The Environmental Protection Agency (EPA) is proposing to approve revisions to the Wyoming State Implementation Plan (SIP) submitted by the Wyoming Department of Environmental Quality (WDEQ) on December 16, 2024. WDEQ requested EPA approve the revisions for Chapters 2, 3, 4, 8, and 14 in the Wyoming Air Quality Standards and Regulations (WAQSR) The revised rules include non-substantive updates to rule language that ensure consistent grammar, formatting, and written clarity as well as updated references to the Code of Federal Regulations. These revisions do not change the intent or scope of each rule. The EPA is proposing approval of these SIP revisions because we have determined that they are in accordance with the requirements for SIP provisions under the Clean Air Act (CAA or the Act). The proposed approval of WAQSR Chapter 2, section 4 of the December 16, 2024 submittal supersedes the revisions to this section contained in WDEQ's February 10, 2014 SIP submittal that the EPA had not previously acted on. In the "Rules and Regulations" section of this Federal Register, we are approving these SIP revisions as a direct final rule without a prior proposed rule. If we receive no adverse comment, we will not take further action on this proposed rule.
Full Text
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<title>Federal Register, Volume 90 Issue 174 (Thursday, September 11, 2025)</title>
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[Federal Register Volume 90, Number 174 (Thursday, September 11, 2025)]
[Proposed Rules]
[Pages 43957-43958]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-17488]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 52
[EPA-R08-OAR-2025-0204; FRL-12942-01-R8]
Air Plan Approval; Wyoming; R-35 Wyoming Air Quality Standards
and Regulations Rule Package
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 Wyoming State Implementation Plan (SIP)
submitted by the Wyoming Department of Environmental Quality (WDEQ) on
December 16, 2024. WDEQ requested EPA approve the revisions for
Chapters 2, 3, 4, 8, and 14 in the Wyoming Air Quality Standards and
Regulations (WAQSR) The revised rules include non-substantive updates
to rule language that ensure consistent grammar, formatting, and
written clarity as well as updated references to the Code of Federal
Regulations. These revisions do not change the intent or scope of each
rule. The EPA is proposing approval of these SIP revisions because we
have determined that they are in accordance with the requirements for
SIP provisions under the Clean Air Act (CAA or the Act). The proposed
approval of WAQSR Chapter 2, section 4 of the December 16, 2024
submittal supersedes the revisions to this section contained in WDEQ's
February 10, 2014 SIP submittal that the EPA had not previously acted
on. In the ``Rules and Regulations'' section of this Federal Register,
we are approving these SIP revisions as a direct final rule without a
prior proposed rule. If we receive no adverse comment, we will not take
further action on this proposed rule.
DATES: Written comments must be received on or before October 14, 2025.
ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R08-
OAR-2025-0204 to the Federal Rulemaking Portal: <a href="https://www.regulations.gov">https://www.regulations.gov</a>. Follow the online instructions for submitting
comments. Once submitted, comments cannot be edited or removed from
<a href="https://www.regulations.gov">https://www.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, 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>.
Docket: All documents in the docket are listed in the <a href="https://www.regulations.gov">https://www.regulations.gov</a> 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
<a href="https://www.regulations.gov">https://www.regulations.gov</a>. 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: Chelsea Cancino, Air and Radiation
Division, EPA, Region 8, Mailcode 8ARD-IO, 1595 Wynkoop Street, Denver,
Colorado 80202-1129, telephone number: (303) 312-6276, email address:
<a href="/cdn-cgi/l/email-protection#b9dad8d7dad0d7d697dad1dcd5cadcd8f9dcc9d897ded6cf"><span class="__cf_email__" data-cfemail="bbd8dad5d8d2d5d495d8d3ded7c8dedafbdecbda95dcd4cd">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION: This document proposes to approve revisions
to the Wyoming SIP that improve readability and incorporate updated
Code of Federal Regulations weblinks to the WAQSR. We have published a
direct final rule approving those revisions in the Rules and
Regulations section of this Federal Register. EPA is approving the
state's submittal as a direct final rule without prior proposal because
we view this as a noncontroversial action and anticipate no adverse
comment. We have explained our reasons for this action in the preamble
to the direct final rule.
If we receive no relevant adverse comment, we will not take further
action on this proposed rule. If we receive adverse comment, we will
withdraw the direct final rule, and it will not take effect. We would
address all public comments in any subsequent final rule based on this
proposed rule.
We do not intend to institute a second comment period on this
action. Any parties interested in commenting must do so at this time.
For further
[[Page 43958]]
information, please see the information provided in the ADDRESSES
section of this document.
Dated: August 29, 2025.
Cyrus M. Western,
Regional Administrator, EPA Region 8.
[FR Doc. 2025-17488 Filed 9-10-25; 8:45 am]
BILLING CODE 6560-50-P
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