   
  
G/TBT/N/USA/1553/Add.1  
 
19 August 2021  
(21-6291) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
 
NOTIFICATION  
Addendum  
The following communication , dated  19 August 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 (19 -5.F) 
 
Reason for Addendum:  
[  ] Comment period changed - date:   
[  ] Notified measure adopted - date:  
[X] Notified measure published - date: 18 August 2021  
[X] Notified measure enters into force - date: 18 October 2021  
[X] Text of final measure available from1:  
https://www.govinfo.gov/content/pkg/FR -2021-08-18/html/2021 -17392. htm 
https://www.govinfo.gov/content/pkg/FR -2021-08-18/pdf/2021 -17392.pdf  
https://members.wto.org/crnattachments/2021/TBT/USA/final_measure/21_5276_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[  ] Notified measure withdrawn or revoked - date:  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  
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 that were the subject of premanufacture notices (PMNs). The SNURs 
require persons who intend to manufacture (defined by statute to include import) or process any of 
these chemical substances for an activity that is designated as a significant new use by this rule to 
notify EPA at least 90 days before commencing that activity. The required notification initiates EPA's 
evaluation of the use, under the conditions of use for that chemical substance, within the applicable 
review period. Persons may not commence manufacture or processing for the significant new use 
 
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/1553/Add.1  
 
- 2 - 
 
  until EPA has conducted a review of the notice, made an appropriate determ ination on the notice, 
and has taken such actions as are required by that determination.  
DATES: This rule is effective on 18 October 2021. For purposes of judicial review, this rule shall be 
promulgated at 1 p.m. (e.s.t.) on 1 September 2021.  
This final ru le and the proposed rule notified as  G/TBT/N/ USA/1553  are identified by Docket Number 
EPA-HQ-OPPT-2019-0530. The Docket Folder is available on Regulations.gov at 
https://www.regulations.gov/docket/EPA -HQ-OPPT-2019-0530/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.  
__________  
 
 