G/TBT/N/USA/2014/Add.1  
 
22 September 2023  
(23-6329) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
NOTIFICATION  
Addendum  
The following communication , dated  22 September 2023, is being circulated at the request of the 
delegation of the United States of America . 
 
_______________  
 
 
Title:  Hazardous Materials: Modernizing Regulations To Improve Safety and Efficiency  
 
Reason for Addendum:  
[X] Comment period changed - date:  4 December 2023; 88 Federal Register (FR) 65148, 49 
Code of Federal Regulations (CFR) Parts 171, 172, 173, 174, 175, 176, 177, 178, 179, 
180: 
https://www.govinfo.gov/content/pkg/FR -2023-09-21/html/2023 -20440.htm  
https://www.govinfo.gov/content/pkg/FR -2023-09-21/pdf/2023 -20440.pdf  
[ ] 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[ ] Notified measure withdrawn or revoked - date:  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:   
[ ] 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:  Advance notice of proposed rulemaking; extension of comment period - On 5 July 
2023, PHMSA published an advance notice of proposed rulemaking, titled " Hazardous Materials: 
Modernizing Regulations to Improve Safety and Efficiency (HM -265A) ," seeking comment of 46 
topics related to moderniz ing the hazardous materials regulations to increase efficiency while 
maintaining and improving safety. In response to a request for an extension of the comment period 
submitted by the American Short Line and Regional Railroad Association, PHMSA is extendin g the 
comment period for the HM -265A notice for an additional 60 days. Comments to the HM -265A notice 
will now be due by 4 December 2023.  
The comment period for the proposed rule published 5 July 2023, at 88 FR 43016 , is extended. 
Comments should be received on or before 4 December 2023. To the extent possible, PHMSA will 
consider late - filed comments.  
 
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/2014/Add.1  
 
- 2 - 
 
  This extension of comment period and t he advance notice of proposed rulemaking notified as 
G/TBT/N/USA/2014  are identified by Docket Number PHMSA -2019-0031. The Docket Folder is 
available from Regulations.gov at https://www.regulations.gov/docket/PHMSA -2019-
0031/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  
by or before 4pm Eastern Time  on 4 December 2023. Comments received by the USA TBT Enquiry 
Point from WTO Members and thei r stakeholders will be shared with the regulator and will also be 
submitted to the Docket  on Regulations.gov if received within the comment period . PHMSA will 
consider late -filed comments to the extent possible.  
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