Energy & environment · 08/02/2023Updated: 10/16/2026 · 1 min read
EPA Revises VOC Definition to Exempt HFO-1336mzz(E)
Summary
The U.S. Environmental Protection Agency has finalized a rule excluding trans-1,1,1,4,4,4-hexafluorobut-2-ene (HFO-1336mzz(E)) from the regulatory definition of volatile organic compounds (VOC) due to its negligible contribution to ozone formation.