News Details
EPA Proposal on SNURs for 37 Chemicals Under TSCA
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.
We acknowledge that the above information has been compiled from WTO.
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