[Federal Register Volume 90, Number 56 (Tuesday, March 25, 2025)]
[Proposed Rules]
[Pages 13576-13578]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-04990]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 60

[EPA-HQ-OAR-2024-0419; FRL-11542-03-OAR]
RIN 2060-AW21


Review of New Source Performance Standards for Stationary 
Combustion Turbines and Stationary Gas Turbines; Reopening of Comment 
Period

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule; reopening of public comment period.

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SUMMARY: On December 13, 2024, the U.S. Environmental Protection Agency 
(EPA) proposed amendments to the new source performance standards 
(NSPS) for new, modified, and reconstructed stationary combustion 
turbines and stationary gas turbines. The EPA is reopening the public 
comment period for this proposed rule to allow additional time for 
stakeholders to review and comment on the proposal. The initial 90-day 
public comment period, which ended March 13, 2025, is being reopened 
for an additional 21 days, from March 25, 2025 to April 15, 2025.

DATES: The comment period for the proposed rule published on December 
13, 2024, at 89 FR 101306, is reopened. Comments must be received on or 
before April 15, 2025.

ADDRESSES: You may send comments, identified by Docket ID No. EPA-HQ-
OAR-2024-0419, by any of the following methods:
     Federal eRulemaking Portal: https://www.regulations.gov 
(our

[[Page 13577]]

preferred method). Follow the online instructions for submitting 
comments.
     Email: a-and-r-docket@epa.gov. Include Docket ID No. EPA-
HQ-OAR-2024-0419 in the subject line of the message.
     Fax: (202) 566-9744. Attention Docket ID No. EPA-HQ-OAR-
2024-0419.
     Mail: U.S. Environmental Protection Agency, EPA Docket 
Center, Docket ID No. EPA-HQ-OAR-2024-0419, Mail Code 28221T, 1200 
Pennsylvania Avenue NW, Washington, DC 20460.
     Hand/Courier Delivery: EPA Docket Center, WJC West 
Building, Room 3334, 1301 Constitution Avenue NW, Washington, DC 20004. 
The Docket Center's hours of operation are 8:30 a.m.-4:30 p.m., Monday-
Friday (except Federal Holidays).
    Instructions: All submissions received must include the Docket ID 
No. for this rulemaking. Comments received may be posted without change 
to https://www.regulations.gov, including any personal information 
provided. For detailed instructions on sending comments and additional 
information on the rulemaking process, see the SUPPLEMENTARY 
INFORMATION section below.

FOR FURTHER INFORMATION CONTACT: John Ashley, Sector Policies and 
Programs Division (D243-02), Office of Air Quality Planning and 
Standards, U.S. Environmental Protection Agency, 109 T.W. Alexander 
Drive P.O. Box 12055 RTP, North Carolina 27711; telephone number: (919) 
541-1458; and email address: ashley.john@epa.gov.

SUPPLEMENTARY INFORMATION: 
    Rationale. On December 13, 2024, pursuant to its statutory duty to 
review and, if appropriate, revise NSPS under section 111(b)(1)(B) of 
the Clean Air Act, the EPA proposed to strengthen the limits for 
emissions of nitrogen oxides (NOX) from most new, modified, 
and reconstructed stationary combustion turbines under new subpart 
KKKKa of 40 CFR part 60. In addition, the EPA proposed amendments to 
address specific technical and editorial issues in the current 
regulations for new, modified, and reconstructed stationary combustion 
turbines and stationary gas turbines under 40 CFR part 60, subparts 
KKKK and GG. The EPA received multiple requests for an extension of the 
initial 90-day comment period to allow stakeholders additional time to 
review and comment on the proposed rule. This initial comment period 
ended March 13, 2025. The EPA has decided to reopen the comment period 
for 21 days. The public comment period will now end on April 15, 2025.
    Docket. The EPA has established a docket for this rulemaking under 
Docket ID No. EPA-HQ-OAR-2024-0419. All documents in the docket are 
listed in https://www.regulations.gov. Although listed in the index, 
some information is not publicly available, e.g., Confidential Business 
Information (CBI) or other information whose disclosure is restricted 
by statute. Certain other material, such as copyrighted material, is 
not placed on the internet and will be publicly available only as pdf 
versions that can only be accessed on the EPA computers in the docket 
office reading room. Certain databases and physical items cannot be 
downloaded from the docket but may be requested by contacting the 
docket office at (202) 566-1744. The docket office has up to 10 
business days to respond to these requests. Except for such material, 
publicly available docket materials are available electronically in 
Regulations.gov.
    Instructions. Direct your comments to Docket ID No. EPA-HQ-OAR-
2024-0419. The EPA's policy is that all comments received will be 
included in the public docket without change and may be made available 
online at https://www.regulations.gov, including any personal 
information provided, unless the comment includes information claimed 
to be CBI or other information whose disclosure is restricted by 
statute. Do not submit electronically to https://www.regulations.gov 
any information that you consider to be CBI or other information whose 
disclosure is restricted by statute. This type of information should be 
submitted as discussed below.
    The EPA may publish any comment received to its public docket. 
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://www.epa.gov/dockets/commenting-epa-dockets.
    The https://www.regulations.gov website allows you to submit your 
comment anonymously, which means the EPA will not know your identity or 
contact information unless you provide it in the body of your comment. 
If you send an email comment directly to the EPA without going through 
https://www.regulations.gov, your email address will be automatically 
captured and included as part of the comment that is placed in the 
public docket and made available on the internet. If you submit an 
electronic comment, the EPA recommends that you include your name and 
other contact information in the body of your comment and with any 
digital storage media you submit. If the EPA cannot read your comment 
due to technical difficulties and cannot contact you for clarification, 
the EPA may not be able to consider your comment. Electronic files 
should not include special characters or any form of encryption and be 
free of any defects or viruses. For additional information about the 
EPA's public docket, visit the EPA Docket Center homepage at https://www.epa.gov/dockets.
    Submitting CBI. Do not submit information containing CBI to the EPA 
through https://www.regulations.gov. Clearly mark the part or all the 
information that you claim to be CBI. For CBI information on any 
digital storage media that you mail to the EPA, note the docket ID, 
mark the outside of the digital storage media as CBI, and identify 
electronically within the digital storage media the specific 
information that is claimed as CBI. In addition to one complete version 
of the comments that includes information claimed as CBI, you must 
submit a copy of the comments that does not contain the information 
claimed as CBI directly to the public docket through the procedures 
outlined in Instructions above. If you submit any digital storage media 
that does not contain CBI, mark the outside of the digital storage 
media clearly that it does not contain CBI and note the docket ID. 
Information not marked as CBI will be included in the public docket and 
the EPA's electronic public docket without prior notice. Information 
marked as CBI will not be disclosed except in accordance with 
procedures set forth in 40 Code of Federal Regulations (CFR) part 2.
    Our preferred method to receive CBI is for it to be transmitted 
electronically using email attachments, File Transfer Protocol (FTP), 
or other online file sharing services (e.g., Dropbox, OneDrive, Google 
Drive). Electronic submissions must be transmitted directly to the 
OAQPS CBI Office at the email address oaqpscbi@epa.gov and, as 
described above, should include clear CBI markings and note the docket 
ID. If assistance is needed with submitting large electronic files that 
exceed the file size limit for email attachments, and if

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you do not have your own file sharing service, please email 
oaqpscbi@epa.gov to request a file transfer link. If sending CBI 
information through the postal service, please send it to the following 
address: U.S. EPA, Attn: OAQPS Document Control Officer, Mail Drop: 
C404-02, 109 T.W. Alexander Drive, P.O. Box 12055, Research Triangle 
Park, North Carolina 27711, Attention Docket ID No. EPA-HQ-OAR-2024-
0419. The mailed CBI material should be double wrapped and clearly 
marked. Any CBI markings should not show through the outer envelope.

Penny Lassiter,
Director, Sector Policies and Programs Division.
[FR Doc. 2025-04990 Filed 3-24-25; 8:45 am]
BILLING CODE 6560-50-P