2060-AV29 202110 The Regulatory Plan and the Unified Agenda of Federal Regulatory and Deregulatory Actions 2060 Office of Air and Radiation OAR 2000 Environmental Protection Agency EPA Protection of Stratospheric Ozone: Standards Related to the Manufacture of Class II Ozone-Depleting Substances for Feedstock

This rulemaking will address byproduct emissions of HFC-23 from the manufacture of class II ozone-depleting substances (ODS) for use as feedstocks. EPA is in the process of completely phasing out production of class II ODS with limited exemptions. Given one of these exemptions includes the manufacture for feedstock and continues indefinitely, EPA would set a limit that would address byproduct emissions of HFC-23 (a substance with a very high global warming potential). EPA is proposing that as compared to the amount of chemical intentionally manufactured on a facility line, the HFC-23 created as a byproduct on the line must be destroyed to an emissions standard using a technology approved by EPA.

]]> Economically Significant Previously Published in The Unified Agenda Proposed Rule Stage Yes No 40 CFR 82 42 U.S.C. 7671 to 7671q Clean Air Act No NPRM 09/29/2021 86 FR 53916 NPRM Comment Period End 11/15/2021 Final Rule 02/00/2022 . No No None No No No No Kirsten Cappel 2060 Office of Air and Radiation OAR 202 343-9556 Cappel.Kirsten@epamail.epa.gov 6202J, Washington DC 20460