G/TBT/N/USA/1954/Add.2  
 
4 January 2024  
(24-0028) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
 
NOTIFICATION  
Addendum  
The following communication , dated  4 January 2024, is being circulated at the request of the 
delegation of the United States of America . 
 
_______________  
 
 
Title:  Phasedown of Hydrofluorocarbons: Restrictions on the Use of Certain Hydrofluorocarbons 
Under Subsection (i) the American Innovation and Manufacturing Act of 2020  
 
Reason for Addendum:  
[ ] Comment period changed - date:   
[ ] Notified measure adopted - date:  
[X] Notified measure published - date: 26 December 2023  
[X] Notified measure enters into force - date: 26 December 2023  
[ ] Text of final measure available from1:  
[ ] Notified measure withdrawn or revoked - date:  
Relevant symbol if measure re -notified:   
[X] Content or scope of notified measure changed  and text available from1:  
88 Federal Register (FR) 59481, Title 40 Code of Federal Regulations (CFR) Part 84:  
https://www.govinfo.gov/content/pkg/FR -2023-12-26/html/2023 -28500.htm  
https://www.govinfo.gov/content/pkg/FR -2023-12-26/pdf/2023 -28500.pdf  
https://members.wto.org/crnattachments/2024/TBT/USA/modification/24_00023_00_e
.pdf 
New deadline for comments (if applicable):  9 February 2024  
[ ] Interpretive guidance issued and text available from1:  
[ ] Other:  
 
Description:  The U.S. Environmental Protection Agency is amending a provision of the recently 
finalized Technology Transitions Program under the American Innovation and Manufacturing A ct 
(AIM Act) . This action allows one additional year, until 1 January 2026, solely for the installation of 
new residential and light commercial air conditioning and heat pump systems using components 
manufactured or impor ted prior to 1 January 2025. The existing 1 January 2025, compliance date 
for the installation of certain residential and light commercial air conditioning and heat pump systems 
may result in significant stranded inventory that was intended for new residen tial construction. EPA 
is promulgating this action to mitigate the potential for significant stranded inventory in this 
 
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/1954/Add.2  
 
- 2 - 
 
  subsector. In addition, EPA is clarifying that residential ice makers are not included in the household 
refrigerator and freezer subsect or under the Technology Transitions Rule and are not subject to the 
restrictions for that subsector. EPA is requesting comments on all aspects of this rule.  
Title 40 Code of Federal Regulations (CFR) Part 84  
This interim final rule; request for comments and previous actions notified under the symbol 
G/TBT/N/USA/1954  are identified by Docket Number EPA -HQ-OAR-2021-0643. The Docket Folder is 
available from Regulations.gov at  https://www.regulations.gov/docket/EPA -HQ-OAR-2021-
0643/document  and provides access to primary and supporting 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 4pm Eastern Time  on 9 February 2024. Comments received by the USA TBT Enquiry 
Point from WTO Members and their stakeholders will be shared with DOE and will also be submitted 
to the Docket  on Regulations.gov if received within the comment period.  
__________