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)

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.

Sources

• Official Significant New Use Rules on Certain Chemical Substances (26-2)

Key Findings

EPA Proposes Significant New Use Rules (SNURs) Batch 26-2