G/TBT/N/USA/1735/Add.1  
 
 
6 October 2021  
(21-7514) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
NOTIFICATION  
Addendum  
The following communication , dated  6 October 2021 , is being circulated at the request of the 
delegation of the United States of America . 
 
_______________  
 
 
Title: Phasedown of Hydrofluorocarbons: Establishing the Allowance Allocation and Trading Program 
Under the American Innovation and Manufacturing Act  
 
Reason for Addendum:  
[  ] Comment period changed - date:   
[  ] Notified measure adopted - date:  
[X] Notified measure published - date: 5 October 2021  
[X] Notified measure enters into force - date: 4 November 2021  
[X] Text of final measure available from1:  
https://www .govinfo.gov/content/pkg/FR -2021-10-05/html/2021 -21030.htm  
https://www.govinfo.gov/content/pkg/FR -2021-10-05/pdf/2021 -21030.pdf  
https://members.wto.org/crnattachments/2021/TBT/USA/final_measure/21_6423_00_
e.pdf 
[  ] Notified measure withdrawn or revoked - date:  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: Phasedown of Hydrofluorocarbons: Establishing the Allowance Allocation and 
Trading Program Under the American Innovation and Manufacturing Act  
AGENCY: Environmental Protection Agency (EPA)  
ACTION: Final rule  
SUMMARY: The Environmental Protection Ag ency is issuing regulations to implement certain 
provisions of the American Innovation and Manufacturing Act, as enacted on 27 December 2020. 
This Act mandates the phasedown of hydrofluorocarbons, which are highly potent greenhouse gases, 
by 85 percent ove r a period ending in 2036. The Act directs the Environmental Protection Agency to 
implement the phasedown by issuing a fixed quantity of transferrable production and consumption 
 
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/1735/Add.1  
 
- 2 - 
 
  allowances, which producers and importers of hydrofluorocarbons must hold in q uantities equal to 
the amount of hydrofluorocarbons they produce or import. To establish the allowance allocation 
program, this rulemaking determines the hydrofluorocarbon production and consumption baselines, 
from which allowed production and consumption will decrease consistent with the statutory 
phasedown schedule; provides an initial approach to allocating calendar -year allowances and 
allowing for the transfer of those allowances; establishes provisions for the international transfer of 
allowances; and establishes recordkeeping and reporting requirements. Additionally, it establishes 
provisions to support implementation, compliance with, and enforcement of, statutory and 
regulatory requirements under the Act's phasedown provisions. Over the time period f rom 2022 -
2050, this rulemaking will avoid cumulative emissions of 4,560 million metric tons of exchange value 
equivalent of HFCs in the United States with a present value of cumulative net benefits of $272.7 
billion.  
DATES: Effective dates: This rule is ef fective on 4 November 2021, except for amendatory instruction 
3 adding 40 CFR part 84, which is effective on 5 October 2021.  
Operational dates: For operational purposes under the American Innovation and Manufacturing Act 
of 2020 (AIM Act or the Act), the r egulatory text established in amendatory instruction 3, is 
operational as of 23 September 2021, and effective as of 5 October 2021. The remainder of this 
rule, and its associated regulatory text outlined in amendatory instructions 1, 2, and 4 through 10, 
is effective 4 November 2021.  
This final rule and the proposed rule notified as G/TBT/N/ USA/1735  are identified by Docket Number 
EPA-HQ-OAR-2021-0044. The Docket Folder is available on Regulations.gov 
at https://www.regulations.gov/docket/EPA -HQ-OAR-2021-0044/doc ument  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.  
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