   
  
G/TBT/N/USA/1555/Add.1  
 
9 October 2020  
(20-6943) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
 
NOTIFICATION  
Addendum  
The following communication , dated  9 October 2020 , is being circulated at the request of the 
delegation of the United States of America . 
 
_______________  
 
 
Title: Test Methods and Performance Specifications for Air Emission Sources  
 
Reason for Addendum:  
[  ] Comment period changed - date:   
[X] Notified measure adopted - date: 7 October 2020  
[  ] Notified measure published - date:  
[X] Notified measure enters into force - date: 7 December 2020  
[X] Text of final measure available from1:  
https://www.govinfo.gov/content/pkg/FR -2020-10-07/html/2020 -18824. htm 
https://www.govinfo.gov/content/pkg/FR -2020-10-07/pdf/2020 -18824.pdf  
https://members.wto.org/crnattachments/2020/TBT/USA/final_measure/20_6039_00_
e.pdf 
[  ] Notified measure withdrawn or revoked - date:  
Relevant symbol if meas ure re -notified:   
[  ] Content or scope of notified measure changed  
New deadline for comments (if applicable):   
[  ] Interpretive guidance issued and text available from1:  
[  ] Other:  
 
Description:  AGENCY: Environmental Protection Agency (EPA)  
ACTION: Final rule  
SUMMARY: This action corrects and updates regulations for source testing of emissions. These 
revisions include corrections to inaccurate testing provisions, updates to outdated procedures, and 
approved alternative procedures that will provide flexibility to testers. These revisions will improve 
the quality of data and will not impose any new  substantive requirements on source owners or 
operators.  
DATES: The final rule is effective on 7 December 2020. The incorporation by reference of certain 
materials listed in the rule is approved by the Director of the Federal Register as of 7 December 
 
1 This information can be provided by including a website address, a pdf attachment, or other 
information on where the text of the final measure and/or interpretive guidance can be obtained.  G/TBT/N/USA/1555/Add.1  
 
- 2 - 
 
  2020. The incorporation by reference of certain other materials listed in the rule was approved by 
the Director of the Federal Register as of 6 July 2006.  
This final rule and the proposed rule notified as G/TBT/N/USA/1555  are identified by Docket 
Number  EPA-HQ-OAR-2018-0815. The Docke t Folder is available on Regulations.gov  at 
https://www.regulations.gov/docket?D=EPA -HQ-OAR-2018-0815 and provides access to primary 
and supporting documents as well as comments received. Documents are also accessibl e from 
Regulations.gov  by searching the Docket Number.  
__________  
 
 