# EPA issues final SNURs on certain chemical substances (26-2)

## Description

EPA published final Significant New Use Rules (SNURs) under TSCA Section 5 for a set of chemical substances (SNUR batch “26-2”). Companies that manufacture, import, or process any of the covered substances must evaluate whether their activities constitute a “significant new use” and, if so, submit a Significant New Use Notice (SNUN) before commencing that use. Compliance teams should identify whether any covered substances appear in products, intermediates, or R&D pipelines and update new-chemical/SNUR screening processes accordingly.

## Sources

- Official [Federal Register :: Significant New Use Rules on Certain Chemical Substances (26-2)](https://www.federalregister.gov/documents/2026/04/24/2026-08012/significant-new-use-rules-on-certain-chemical-substances-26-2)