   
  
G/TBT/N/USA/1728/Add.1  
 
 
8 October 2021 
(21-7607) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
 
NOTIFICATION  
Addendum  
The following communication , dated  8 October 2021 , is being circulated at the request of the 
delegation of the United States of America . 
 
_______________  
 
 
Title: Significant New Use Rules on Certain Chemical Substances (21 -2.B) 
 
Reason for Addendum:  
[  ] Comment period changed - date:   
[  ] Notified measure adopted - date:  
[X] Notified measure published - date: 7 October 2021  
[X] Notified measure enters into force - date: 6 December 2021  
[X] Text of final measure available from1:  
https://www.govinfo.gov/content/pkg/FR -2021-10-07/html/2021 -21858. htm 
https://www.govinfo.gov/content/pkg/FR -2021-10-07/pdf/2021 -21858.pdf  
https://members.wto.org/crnattachments/2021/TBT/USA/final_measure/21_6474_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[  ] Notified measure withdrawn or revoked - date:  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: Significant New Use Rules on Certain Chemical Substances (21 -2.B) 
AGENCY: Environmental Protection Agency (EPA)  
ACTION: Final rule  
SUMMARY: EPA is issuing significant new use rules (SNURs) under the  Toxic Substances Control Act 
(TSCA) for chemical substances which were  the subject of premanufacture notices (PMNs). This 
action requires  persons to notify EPA at least 90 days before commencing manufactu re (defined by 
statute to include import) or processing of any of these  chemical substances for an activity that is 
designated as a significant  new use by this rule. This action further requires that persons 
not commence manufacture or processing for the sign ificant new use until  they have submitted a 
Significant New Use Notice (SNUN), EPA has  conducted a review of the notice, made an appropriate 
 
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/1728/Add.1  
 
- 2 - 
 
  determination on  the notice, and has taken any risk management actions as are required  as a result 
of that determin ation.  
DATES: This rule is effective on 6 December 2021. For purposes of  judicial review, this rule shall 
be promulgated at 1 p.m. (e.s.t.) on  21 October 2021.  
This final rule and the proposed rule notified as G/TBT/N/USA/1728  are identified by Docket Number 
EPA-HQ-OPPT-2020-0581. The Docket Folder is available on  Regulations.gov  at 
https://www.regulations.gov/docket/EPA -HQ-OPPT-2020-0581/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.  
  
  
__________  
 
 