G/TBT/N/USA/2001/Add.1  
 
19 June 2023  
(23-4153) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
 
NOTIFICATION  
Addendum  
The following communication , dated  19 June 2023, is being circulated at the request of the 
delegation of the United States of America . 
 
_______________  
 
 
Title:  New Source Performance Standards for Greenhouse Gas Emissions From New, Modified, and 
Reconstructed Fossil Fuel -Fired Electric Generating Units; Emission Guidelines for Greenhouse Gas 
Emissions From Existing Fossil Fuel -Fired Electric Generating Units; and Repeal of the Affordable 
Clean Energ y Rule  
 
Reason for Addendum:  
[X] Comment period changed - date:  8 August 2023; 
https://www.govinfo.gov/content/pkg/FR -2023-06-16/html/2023 -12834.htm  
https://www.govinfo.gov/content/pkg/FR -2023-06-16/pdf/2023 -12834.pdf  
[ ] Notified measure adopted - date:  
[ ] Notified measure published - date:  
[ ] Notified measure enters into force - date:  
[ ] Text of final measure available from1:  
[ ] Notified measure withdrawn or revoked - date:  
Relevant symbol if measure re -notified:   
[ ] Content or scope of notified measure changed  and text available from1:  
New deadline for comments (if applicable):   
[ ] Interpretive guidance issued and text available from1:  
[ ] Other:  
 
Description:  TITLE: New Source Performance Standards for Greenhouse Gas Emissions From New, 
Modified, and Reconstructed Fossil Fuel -Fired Electric Generating Units; Emission Guidelines for 
Greenhouse Gas Emissions From Existing Fossil Fuel -Fired Electric Generating Units; and Repeal of 
the Affordable Clean Energy Rule  
AGENCY: Environmental Protection Agency (E PA) 
ACTION: Proposed rule; extension of comment period  
SUMMARY: On 23 May 2023, the Environmental Protection Agency (EPA) issued a proposal titled, 
"New Source Performance Standards for Greenhouse Gas Emissions from New, Modified, and 
Reconstructed Fossil Fuel-Fired Electric Generating Units; Emission Guidelines for Greenhouse Gas 
 
1 This information can be provided by including a website address, a pdf attachment, or other 
information on where the text of the final /modified  measure and/or interpretive guidance can be obtained.  G/TBT/N/USA/2001/Add.1  
 
- 2 - 
 
  Emissions from Existing Fossil Fuel -Fired Electric Generating Units; and Repeal of the Affordable 
Clean Energy Rule''. The EPA is extending the comment period on the proposed rule s from 24 July 
2023, to 8 August 2023.  
DATES: The public comment period for the proposed rule published in the Federal Register (FR) on 
23 May 2023 ( 88 FR 33240 ) is being extended by 15 days. The comment period will now remain 
open until 8 August 2023, to allow additional time for stakeholders to review and comment on the 
proposals.  
This extension of comment period to the proposed rule notified as G/TBT/N/USA/2001  is identified 
by Docket Number EPA -HQ-OAR-2023-0072. The Docket Folder is available on Regulations.gov at 
https://www.regulations.gov/docket/EPA -HQ-OAR-2023-0072/document  and provides access to 
primary documents as well as comments received. Documents are also accessible from 
Regulations.gov  by searching the Docket Number. WTO Members and their stakeholders are asked 
to submit comments to the USA TBT Enquiry Point  by or before 4:00 p.m.  Eastern Time  on 8 August 
2023. Comments received by the USA TBT Enquiry Point from WTO Members and their stakeholders 
will be shared with the regulator and will also be submitted to the Docket  on Regulations.gov if 
received within the comment period.  
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