G/TBT/N/USA/1189/Rev.1/Add.1  
 
29 March 2021  
(21-2552) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
NOTIFICATION  
Addendum  
The following communication , dated  29 March 2021 , is being circulated at the request of the 
delegation of the United States of America . 
 
_______________  
 
 
Title: Energy Conservation Program: Test Procedure for Walk-in Coolers and Walk -in Freezers; 
Proposed Rule  
 
Reason for Addendum:  
[  ] Comment period changed - date:   
[  ] Notified measure adopted - date:  
[X] Notified measure published - date: 26 March 2021  
[X] Notified measure enters into force - date: 26 April 2021  
[X] Text of final measure available from1:  
https://www.govinfo.gov/content/pkg/FR -2021-03-26/html/2021 -05414.ht m 
https://www.govinfo.gov/content/pkg/FR -2021-03-26/pdf/2021 -05414.pdf  
https://members.wto.org/crnattachments/2021/TBT/USA/final_measure/21_2263_00_
e.pdf 
[  ] Notified measure withdrawn or revoked - date:  
Relevant symbol if meas ure 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:  Energy Conservation Program: Test Procedure for Walk -In Coolers and Walk -In 
Freezers  
AGENCY: Office of Energy Efficiency and Renewable Energy, Department of Energy  
ACTION: Final rule  
SUMMARY: This final rule amends the current test procedure for hot gas d efrost unit coolers by 
making it consistent with a recent update to the industry testing standard that is incorporated by 
reference in the relevant Federal test procedure for walk -in freezer refrigeration systems. This final 
rule updates the equations used  to calculate defrost energy and heat contributions applicable to 
 
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/1189/Rev.1/Add.1  
 
- 2 - 
 
  these systems to provide a consistent performance evaluation between hot gas defrost and electric 
defrost unit coolers when tested alone.  
DATES: The effective date of this rule 26 April 2021 . The final rule changes will be mandatory for 
product testing starting 22 September 2021.  
This final rule and the notice of proposed rulemaking and request for comment notified as 
G/TBT/N/ USA/1189/Rev.1  are identified by Docket Number EERE -2020-BT-TP-0016. The Docket 
Folder is available at https://www.regulations.gov/docket/EERE -2020-BT-TP-0016/docu ment 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.  
Previous actions notified u nder the symbol G/TBT/N/U SA/1189  are identified 
by Docket  Number  EERE-2016-BT-TP-0030.  The Docket Folder is available on 
https://www.regulations.gov/docket/EERE -2016-BT-TP-0030/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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