WTO notification · TBT
United StatesUpdated: check whether it is now adopted or in force
Official title
Significant New Use Rules on Certain Chemical Substances (26-2)
The United States issued an addendum on 22 May 2026 to the earlier TBT notification G/TBT/N/USA/2273. Addenda often report that a measure was adopted, changed, postponed or withdrawn. The measure was first notified on 27 April 2026. The comment period closed on 10 July 2026.
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Environmental protection; Production in the chemical industry; Products of the chemical industry
The comment period closed on 10 July 2026. You can still raise concerns about the measure with your country's WTO TBT enquiry point, quoting the document symbol G/TBT/N/USA/2273/Add.1; it can take them up with the United States.
Find your country's enquiry point on WTO ePing (opens in a new tab)Latest notice (G/TBT/N/USA/2273/Add.1, 22 May 2026)
The latest notice extends the comment period.
Significant New Use Rules on Certain Chemical Substances (26-2); Extension of Comment Period
The Environmental Protection Agency (EPA) issued significant new use rules (SNURs) under the Toxic Substances Control Act (TSCA) on 24 April 2026, for chemical substances subject to an Order issued pursuant to TSCA. The SNURs require persons to notify EPA at least 90 days before commencing the manufacture (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 in the SNUR. The required notification initiates EPA's evaluation of the conditions of that use for that chemical substance. In addition, the manufacture or processing for new use may not commence until EPA has conducted a review of the required notification; made an appropriate determination regarding that notification; and taken such actions as required by that determination. This document extends the comment period, which was scheduled to end on 26 May 2026, for 45 days. The comment period for the document published on 24 April 2026 at 91 FR 22075 (FRL-13085-01-OCSPP) (notified as G/TBT/N/USA/2273) is extended. Comments must be received on or before 10 July 2026. 91 Federal Register (FR) 29926, 21 May 2026; Title 40 Code of Federal Regulations (CFR) Part 721: This extension of comment period and the proposed rule notified as G/TBT/N/USA/2273 are identified by Docket Number EPA-HQ-OPPT-2025-2932. The Docket Folder is available on Regulations.gov at and provides access to primary and supporting documents as well as comments…
Proposed rule - The Environmental Protection Agency (EPA) is issuing significant new use rules (SNURs) under the Toxic Substances Control Act (TSCA) for certain chemical substances that were the subject of premanufacture notices (PMNs) and are also subject to an Order issued by EPA pursuant to TSCA. The SNURs require persons to notify EPA at least 90 days before commencing the manufacture (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 in the SNUR. The required notification initiates EPA's evaluation of the conditions of that use for that chemical substance. In addition, the manufacture or processing for the significant new use may not commence until EPA has conducted a review of the required notification; made an appropriate determination regarding that notification; and taken such actions as required by that determination.
Every notice about this measure published here, newest first. Each one is the notifying member's own text.
AddendumG/TBT/N/USA/2273/Add.1
Comment deadline: Closed on 10 July 2026
Significant New Use Rules on Certain Chemical Substances (26-2); Extension of Comment Period
The Environmental Protection Agency (EPA) issued significant new use rules (SNURs) under the Toxic Substances Control Act (TSCA) on 24 April 2026, for chemical substances subject to an Order issued pursuant to TSCA. The SNURs require persons to notify EPA at least 90 days before commencing the manufacture (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 in the SNUR. The required notification initiates EPA's evaluation of the conditions of that use for that chemical substance. In addition, the manufacture or processing for new use may not commence until EPA has conducted a review of the required notification; made an appropriate determination regarding that notification; and taken such actions as required by that determination. This document extends the comment period, which was scheduled to end on 26 May 2026, for 45 days. The comment period for the document published on 24 April 2026 at 91 FR 22075 (FRL-13085-01-OCSPP) (notified as G/TBT/N/USA/2273) is extended. Comments must be received on or before 10 July 2026. 91 Federal Register (FR) 29926, 21 May 2026; Title 40 Code of Federal Regulations (CFR) Part 721: This extension of comment period and the proposed rule notified as G/TBT/N/USA/2273 are identified by Docket Number EPA-HQ-OPPT-2025-2932. The Docket Folder is available on Regulations.gov at and provides access to primary and supporting documents as well as comments…
Regular notificationG/TBT/N/USA/2273
Comment deadline: Closed on 26 May 2026
Significant New Use Rules on Certain Chemical Substances (26-2)
Proposed rule - The Environmental Protection Agency (EPA) is issuing significant new use rules (SNURs) under the Toxic Substances Control Act (TSCA) for certain chemical substances that were the subject of premanufacture notices (PMNs) and are also subject to an Order issued by EPA pursuant to TSCA. The SNURs require persons to notify EPA at least 90 days before commencing the manufacture (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 in the SNUR. The required notification initiates EPA's evaluation of the conditions of that use for that chemical substance. In addition, the manufacture or processing for the significant new use may not commence until EPA has conducted a review of the required notification; made an appropriate determination regarding that notification; and taken such actions as required by that determination.
Expodite writes its summary from the official record. The notification and the documents it notifies are on the WTO's own websites.
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