G/TBT/N/USA/929/Rev.1/Add.2  
 
3 November 2021  
(21-8338) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
 
NOTIFICATION  
Addendum  
The following communication , dated  3 November 2021 , is being circulated at the request of the 
delegation of the United States of America . 
 
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Title: Energy Conservation Program: Test Procedure for External Power Supplies  
 
Reason for Addendum:  
[  ] Comment period changed - date:   
[  ] 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[  ] Notified measure withdrawn or revoked - date:  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:   
[X] Content or scope of notified measure changed  and text available from1: 
https://www.govinfo.gov/content/pkg/FR -2021-11-02/html/2021 -23184.htm  
https://www.govinfo.gov/content/pkg/FR -2021-11-02/pdf/2021 -23184.pdf  
https: //members.wto.org/crnattachments/2021/TBT/USA/modification/21_6971_00_e.
pdf 
New deadline for comments (if applicable):  03/01/2022  
[  ] Interpretive guidance issued and text available from1:  
[  ] Other:  
 
Description:  TITLE: Energy Conservation Program: Test Procedure for External Power Supplies  
AGENCY: Office of Energy Efficiency and Renewable Energy, Department of Energy  
ACTION: Supplemental notice of proposed rulemaking and request for comment  
SUMMARY: On 6 December 2019, the U.S. Department of Energy ("DOE") published a notice of 
proposed rulemaking ("NOPR") proposing certain amendments to its test procedure for e xternal 
power supplies ("EPS" or "EPSs"), notified as G/TBT/N/USA/929/Rev.1 . In this supplemental notice 
of proposed rulemaking ("SNOPR"), DOE is prop osing additional amendments and modifications to 
certain proposals presented in the SNOPR. In this document, DOE is proposing to remove reference 
to direct operation and indirect operation Class A EPSs in the scope; simplify and more explicitly 
align the s cope of the test procedure with the scope of the energy conservation standards; provide 
additional specifications for the testing of EPSs that do not ship with an output cord; and align the 
 
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/929/Rev.1/Add.2  
 
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  testing requirements for programmable power supplies with those fo r Universal Serial Bus Power 
Delivery ("USB -PD") EPSs. Further, DOE proposes to maintain the location of certain definitions for 
which it proposed in the NOPR to relocate. DOE is seeking comment from interested parties on the 
proposals.  
DATES: DOE will acc ept comments, data, and information regarding this SNOPR no later than 3 
January 2022. See section [V], "Public Participation," for details. DOE will hold a webinar on 
Wednesday, 15 December 2021 from 12:30 p.m. to 4:00 p.m. See section V, "Public Particip ation," 
for webinar registration information, participant instructions, and information about the capabilities 
available to webinar participants. If no participants register for the webinar, it will be cancelled.  
This supplemental notice of proposed rulema king and request for comment and previous actions 
notified under the symbol G/TBT/N/USA/929/Rev.1  are identified by Docket Number EERE -2019-
BT-TP-0012. The Docket Folder is available on Regulations.gov 
at https://www.regulations.gov/docket/EERE -2019-BT-TP-0012/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 . Comments received by the USA TBT 
Enqui ry 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 t he comment period.  
Actions notified under the symbol  G/TBT/N/USA/929  are identified by Docket Number EERE -2014-
BT-TP-0043. The Docket Folder is available on Regulations.gov 
at https://www.regulations.gov/docket/EERE -2014-BT-TP-0043/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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