G/TBT/N/USA/1994/Add.1  
 
5 April 2024  
(24-2941) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
NOTIFICATION  
Addendum  
The following communication , dated  5 April 2024, is being circulated at the request of the delegation 
of the United States of America . 
 
_______________  
 
 
Title:  National Emission Standards for Hazardous Air Pollutants: Ethylene Production, Miscellaneous 
Organic Chemical Manufacturing, Organic Liquids Distribution (Non -Gasoline), and Petroleum 
Refineries Reconsideration  
 
Reason for Addendum:  
[ ] Comment period changed - date:   
[ ] Notified measure adopted - date:  
[X] Notified measure published - date: 4 April 2024; the incorporation by reference of certain 
material listed in this rule was approved by the Director of the Federal Register as of 12 
August 2020.  
[X] Notified measure e nters into force - date: 4 April 2024  
[X] Text of final measure available from1:  
89 Federal Register (FR) 23840; Title 40 Code of Federal Regulations (CFR) Part 63:  
https://www.govinfo.gov/content/pkg/FR -2024-04-04/html/2024 -05906.htm  
https://www.govinfo.gov/content/pkg/FR -2024-04-04/pdf/2024 -05906.pdf  
https://members.wto.org/crnattachments/2024/TBT/USA/final_measure/24_02467_00
_e.pdf  
[ ] Notified measure withdrawn or revoked - date:  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:  Final action; reconsideration of final rule - On 6 July 2020, the U.S. Environmental 
Protection Agency (EPA or the Agency) finalized the residual risk and technology review (RTR) 
conducted for the Ethylene Production source category, which is part of the Generic Maximum 
Achievable Control Technology Standards National Emission Standards fo r Hazardous Air Pollutants 
(NESHAP); on 7 July 2020, the EPA finalized the RTR conducted for the Organic Liquids Distribution 
 
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/1994/Add.1  
 
- 2 - 
 
  (Non-Gasoline) NESHAP; and on 12 August 2020, the EPA finalized the RTR conducted for the 
Miscellaneous Organic Chemical Manufactu ring NESHAP. Amendments to the Petroleum Refinery 
Sector NESHAP were most recently finalized on 4 February 2020. Subsequently, the EPA received 
and granted various petitions for reconsideration on these NESHAP for, among other things, the 
provisions relate d to the work practice standards for pressure relief devices (PRDs), emergency 
flaring, and degassing of floating roof storage vessels. This action finalizes proposed amendments 
to remove the force majeure  exemption for PRDs and emergency flaring, incorporate clarifications 
for the degassing requirements for floating roof storage vessels, and address other corrections and 
clarifications.  
This action is identified by Docket Number EPA -HQ-OAR-2022-0787. The Docket Folder is available 
on Regulations.gov  at https://www.regulations.gov/docket/EPA -HQ-OAR-2022-0787/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.  
See also 40 CFR Part 63 . 
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