Public CommentProposedPublic CommentProposed Regulation
EPA Proposes Significant New Use Rules (SNURs) Batch 26-2
Toxic Substances Control Act (TSCA) Section 5 - Significant New Use Rules (40 CFR Part 721)U.S. Environmental Protection Agency (EPA)US
Announced
Apr 24, 2026
Description
EPA proposed Significant New Use Rules (SNURs) for chemical substances subject to premanufacture notices (PMNs) P-25-73, P-25-152, P-25-137, and P-25-151. The SNURs require 90-day notification (SNUN) to EPA before manufacturing or processing for significant new uses. EPA identified concerns for carcinogenicity, reproductive toxicity, specific target organ toxicity, and dermal/respiratory sensitization. Estimated cost per SNUN submission is $45,496.
Key Findings
EPA Proposes Significant New Use Rules (SNURs) Batch 26-2
Background and more details are available in the *[Search & Navigation](/reader-aids/recent-updates/2024/10/combined-search-and-navigation-omni-box)* guide. # Significant New Use Rules on Certain Chemical Substances (26-2) A Proposed Rule by the [Environmental Protection Agency](https://www.federalregister.gov/agencies/environmental-protection-agency) on [04/24/2026](/documents/2026/04/24) Comments on this document