G/TBT/N/USA/1696/Add.1  
 
7 March 2022  
(22-2053) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
 
NOTIFICATION  
Addendum  
The following communication , dated  4 March 2022 , is being circulated at the request of the 
delegation of the United States of America . 
 
_______________  
 
 
Title: Approval of American Society of Mechanical Engineers' Code Cases  
 
Reason for Addendum:  
[  ] Comment period changed - date:   
[  ] Notified measure adopted - date:  
[X] Notified measure published - date: 3 March 2022  
[X] Notified measure enters into force - date: 4 April 2022  
[X] Text of final measure available from1:  
https://www.govinfo.gov/content/pkg/FR -2022-03-03/html/2022 -04374.htm  
https://www.govinfo.gov/content/pkg/FR -2022-03-03/pdf/2022 -04374.pdf  
https://members.wto.org/crnattachments/2022/TBT/USA/final_measure/22_1955_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[  ] Notified measure withdrawn or revoked - date:  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:  TITLE: Approval of American Society of Mechanical Engineers' Code Cases  
AGENCY: Nuclear Regulatory Commission  
ACTION: Final rule  
SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is amending its  regulations to 
incorporate by reference revisions of three regulatory  guides to approve new, revised, and 
reaffirmed code cases published by  the American Society of Mechanical Engineers.  The NRC is 
also incorporating by reference one NRC NUREG associated with a condition on  one of the regulatory 
guides. This action allows nuclear power plant  licensees and applicants for construction permits, 
operating licenses,  combined licenses, standard  design certifications, standard design  approvals, 
and manufacturing licenses to use the code cases listed in  these regulatory guides as voluntary 
 
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/1696/Add.1  
 
- 2 - 
 
  alternatives to engineering  standards for the construction, inservice inspection, and inservice  testing 
of nu clear power plant components. These engineering standards  are set forth in the American 
Society of Mechanical Engineers' Boiler  and Pressure Vessel Codes and American Society of 
Mechanical Engineers'  Operation and Maintenance Codes, which are currently inc orporated 
by reference into the NRC's regulations. Further, this final rule  announces the availability of a related 
regulatory guide, not  incorporated by reference into the NRC's regulations, that lists code  cases that 
the NRC has not approved for use.   
DATES: This final rule is effective on 4 April 2022. The incorporation  by reference of certain 
publications listed in the regulation is  approved by the Director of the Federal Register as of 4 April 
2022.  
This final rule and the proposed rule notified as G/TBT/N/ USA/1696  are identified by Docket Number 
NRC-2017-0025. The Docket Folder is available from Regulations.gov 
at https://www.regulations.gov/docket/NRC -2017-0025/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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