2022-08922: Air Quality: Revision to the Regulatory Definition of Volatile Organic Compounds-Exclusion of (2E)-1,1,1,4,4,4-hexafluorobut-2-ene (HFO-1336mzz(E))
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The U.S. Environmental Protection Agency (EPA) is proposing to revise the EPA's regulatory definition of volatile organic compounds (VOC) under the Clean Air Act (CAA). This action proposes to add (2E)- 1,1,1,4,4,4-hexafluorobut-2-ene (also known as trans-1,1,1,4,4,4- hexafluorobut-2-ene, and HFO-1336mzz(E); CAS number 66711-86-2) to the list of compounds excluded from the regulatory definition on the basis that this compound makes a negligible contribution to tropospheric ozone (O<INF>3</INF>) formation.
The agency’s own summary, as published.
What this changes
Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.
Rulemaking docket
We haven’t pulled this rulemaking’s full docket yet. View docket EPA-HQ-OAR-2021-0420 on Regulations.gov →
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