G/TBT/N/USA/1626/Add.1  
 
11 May 2021  
(21-4001) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
 
NOTIFICATION  
Addendum  
The following communication , dated  11 May 2021 , is being circulated at the request of the delegation 
of the United States of America . 
 
_______________  
 
 
Title: Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New 
Alternatives Policy Program  
 
Reason for Addendum:  
[  ] Comment period changed - date:   
[  ] Notified measure adopted - date:  
[X] Notified measure published - date: 6 May 2021  
[X] Notified measure enters into force - date: 7 June 2021  
[X] Text of final measure available from1:  
https://www.govinfo.gov/content/pkg/FR -2021-05-06/html/2021 -08968.htm  
https://www.govinfo.gov/content/pkg/FR -2021-05-06/pdf/2021 -08968.pdf  
https://members.wto.org/crnattachments/2021/TBT/USA/final_measure/21_3356_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[  ] Notified measure withdrawn or revoked - date:  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: Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant 
New Alternatives Policy Program  
AGENCY: Environmental Protection Agency (EPA)  
ACTION: Final rule  
SUMMARY: Pursuant to the U.S. Environmental Protection Agency's (EPA) S ignificant New 
Alternatives Policy program, this action lists certain substances in the refrigeration and air 
conditioning sector. For the retail food refrigeration --medium -temperature stand -alone units (new) 
end-use, EPA is listing three substitutes as ac ceptable subject to narrowed use limits. For the 
residential and light commercial air conditioning and heat pumps (new) end -use, EPA is listing six 
 
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/1626/Add.1  
 
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  substitutes as acceptable subject to use conditions. Through this action, EPA is incorporating by 
reference the 2019 Underwriters Laboratories (UL) Standard 60335 -2-40, 3rd Edition, which 
establishes requirements for the evaluation of electrical air conditioners, heat pumps, and 
dehumidifiers, and safe use of flammable refrigerants. This action also removes an a cceptable 
subject to use conditions listing for the fire suppression sector because EPA more recently listed the 
substitute as acceptable with no use restrictions.  
DATES: This rule is effective 7 June 2021. The incorporation by reference of certain publica tions 
listed in the rule is approved by the Director of the Federal Register as of 7 June 2021.  
This final rule and the proposed rule notified as G/TBT/N/ USA/1626  are identified by Docket Number 
EPA-HQ-OAR-2019-0698. The Docket Folder is available on Regulations.gov at 
https://www.regulations.gov/docket/EPA -HQ-OAR-2019-0698/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.  
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