G/TBT/N/USA/2077  
18 December 2023  
(23-8662) Page: 1/2 
Committee on Technical Barriers to Trade  Original:  English  
 
  
NOTIFICATION  
The following notification is being circulated in accordance with Article 10.6  
 
1. Notifying Member:  UNITED STATES OF AMERICA  
If applicable, name of local government involved (Article 3.2 and 7.2):   
2. Agency responsible:   
Environmental Protection Agency (EPA) [2108]  
Name and address (including telephone and fax numbers , email and website 
addresses, if available) of agency or authority designated to handle comments 
regarding the notification shall be indicated if different from above:   
Please submit comments to: USA WTO TBT Enquiry Point, Email: usatbtep@nist.gov  
3. Notified under Article 2.9.2 [  ], 2.10.1 [  ], 5.6.2 [  ], 5.7.1 [  ], 3.2 [  ], 7.2 [  ], 
other  [X]: EPA is announcing the availability of and soliciting public comment on the 
document titled: "2023 Draft Risk Evaluation for Tris(2 -chloroethyl) Phosphate (TCEP)". 
A letter peer review is expected to begin on 13 March 2024, and end on 12 April 2024, to 
review the approach and methodologies utilized in this document.  
4. Products covered (HS or CCCN where applicable, otherwise national tariff 
heading. ICS numbers may be provided in addition, where applicable):  Tris(2 -
chloroethyl) Phosphate (TCEP), Environmental protection (ICS code(s): 13.020); 
Protection against dangerous goods (ICS code(s): 13.300); Production in the chemical 
industry (ICS code(s): 71.020); Products of the chemical industry (ICS code(s): 71.100)  
5. Title, number  of pages and language(s) of the notified document:  Tris(2 -
chloroethyl) Phosphate (TCEP); Draft Risk Evaluation Under the Toxic Substances Control 
Act (TSCA); Letter Peer Review; Notice of Availability, Public Meeting and Request for 
Comment; (3 page(s), i n English)  
6. Description of content:  Notice - The Environmental Protection Agency (EPA) is 
announcing the availability of and soliciting public comment on the document titled: "2023 
Draft Risk Evaluation for Tris(2 -chloroethyl) Phosphate (TCEP)" and rela ted draft charge 
questions. EPA will be submitting the Draft Risk Evaluation and public comments to peer 
reviewers who will consider the approach and methodologies utilized. The letter peer 
review will include review of the analysis of physical -chemical pr operties, the fate of TCEP 
in the environment, releases of TCEP to the environment, environmental hazard and risk 
characterization for terrestrial and aquatic species, and human health hazard and risk 
characterization for workers, consumers, and the genera l population. The letter peer 
review is expected to begin on 13 March 2024, and end on 12 April 2024. A preparatory 
virtual public meeting will be held on 5 March 2024, for reviewers and the public to 
comment on and ask questions regarding the scope and cl arity of the draft charge 
questions. Feedback from the letter peer review will be considered in the development of 
the final TCEP risk evaluation.  
EPA will hold a virtual public meeting 5 March 2024, 1:00 pm to 4:00 pm  Eastern Time . 
To receive the webcast meeting link and audio teleconference info rmation before the 
meeting, you must register by 5 pm Eastern Time  on 1 March 2024. To allow EPA time to G/TBT/N/USA/2077  
 
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  process your request for special accommodations, please submit the request by 23 
February 2024.  
7. Objective and rationale, including the nature of urgent problems where 
applicable:  Protection of human health or safety; Protection of animal or plant life or 
health; Protection of the environment  
8. Relevant documents:   
88 Federal Register (FR) 86894, 15 December 2023:  
https://www.govinfo.gov/content/pkg/FR -2023-12-15/html/2023 -27600.htm  
https://www.govinfo.gov/content/pkg/FR -2023-12-15/pdf/2023 -27600.pdf  
This notice is identified by Docket Number EPA -HQ-OPPT-2023-0265. The Docket Folder 
is available on Regulations.gov at https://www.regulations.gov/docket/EPA -HQ-OPPT-
2023-0265/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 . Comments received by the USA TBT Enquiry Point from 
WTO Members and their stakeholders by 4pm Eastern Time  on 13 February 2024 will be 
shared with EPA and will also be submitted to the Docket  on Regulations.gov if received 
within the comment period.  
9. Proposed date of adoption:  To be determined  
Proposed date of entry into force:  To be determined  
10. Final date for comments:  13 February 2024  
11. Texts available from:  National enquiry point [ ] or address, telephone and fax 
numbers and email and website addresses, if available , of other body:   
https://members.wto.org/crnattachments/2023/TBT/USA/23_14700_00_e.pdf