# Modification of Significant New Uses of 1-Propene, 2,3,3,3-tetrafluoro
> **Rule** · Final rule. · Published 2013-11-01 · Effective 2013-12-02 · 78 FR 65570
## Document
- **Document number:** 2013-25981
- **Category:** chemical-tsca
- **Federal Register citation:** 78 FR 65570
- **CFR reference:** 40 CFR 721
- **Publication date:** 2013-11-01
- **Effective date:** 2013-12-02
- **EPA docket:** EPA-HQ-OPPT-2008-0918
## Abstract

Under the Toxic Substances Control Act (TSCA), EPA is finalizing an amendment to the significant new use rule (SNUR) for the chemical substance identified as 1-Propene, 2,3,3,3-tetrafluoro-, which was the subject of premanufacture notice (PMN) P-07-601. This action amends the SNUR to allow the manufacture and processing for certain uses without requiring a significant new use notice (SNUN). EPA is finalizing this amendment based on review of newly submitted exposure and toxicity data.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/11/01/2013-25981/modification-of-significant-new-uses-of-1-propene-2333-tetrafluoro)
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