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On May 12, 2025, the U.S. Environmental Protection Agency (EPA) issued an interim final rule delaying the start of the PFAS reporting period under the Toxic Substances Control Act (TSCA) Section 8(a)(7). Originally set to begin on July 11, 2025, the reporting window will now open April 13, 2026. This extension allows the Agency more time to finalize and test the data collection system. 

New Deadlines

General manufacturers and importers: October 13, 2026 

Small manufacturers (article importers only): April 13, 2027 

The submission delay takes effect immediately, but EPA will accept public comments on it for 30 days. The Agency may also revisit other parts of the PFAS reporting rule and will review all comments together. Feedback can be submitted at www.regulations.gov (Docket: EPA-HQ-OPPT-2020-0549). 

The agency may also propose changes to other parts of the rule in the near future. 
For more information about the rule, please visit US EPA finalises rule requiring reporting of PFAS data. 

On 4 April 2025, the United States notified the World Trade Organization (WTO) of a proposed rule to establish Significant New Use Rules (SNURs) for 37 chemical substances under the Toxic Substances Control Act (TSCA). The proposal was published by the U.S. Environmental Protection Agency (EPA) in the Federal Register under docket number EPA-HQ-OPPT-2024-0332. 

Scope and Regulatory Background 

The SNURs aim to require manufacturers, importers, and processors to submit a Significant New Use Notification (SNUN) at least 90 days before engaging in any activity identified as a significant new use. This enables EPA to evaluate any potential health or environmental risks before such uses begin. 

The affected substances, which were previously reviewed under Premanufacture Notices (PMNs), are used in various applications, including polymers, coatings, adhesives, surfactants, perfumes, UV-curable resins, and catalysts. The proposed SNURs seek to limit uses that deviate from original risk assessments. 

What’s Next? 

The public comment period ended on 6 May 2025. EPA will now review the submitted feedback and may revise the proposal before publishing a final rule. Once finalized, the rule will be incorporated into 40 CFR Part 721 and compliance will be legally binding. 

Stakeholders, particularly those in the chemical manufacturing and import sectors, are advised to monitor for updates and prepare for potential regulatory obligations once the final rule is issued.