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EPA/OAR RIN: 2060-AV29 Publication ID: Spring 2021 
Title: ●Protection of Stratospheric Ozone: Standards Related to Feedstock Production of Class II Ozone-Depleting Substances 

This rulemaking will address continued production of class II ozone-depleting substances for use as feedstock to ensure byproduct emissions of HFC-23 are destroyed to the extent practicable. EPA has previously phased out production of class II substances with limited exemptions. Given one of these exemptions is for feedstock production 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 produced on a facility line, the HFC-23 created as a byproduct on the line must be destroyed to the extent practicable using a technology approved by EPA.

Agency: Environmental Protection Agency(EPA)  Priority: Other Significant 
RIN Status: First time published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 40 CFR 82   
Legal Authority: 42 U.S.C. 7671 to 7671q Clean Air Act   
Legal Deadline:  None
Action Date FR Cite
NPRM  06/00/2021 
Final Rule  11/00/2021 
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Undetermined 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Kirsten Cappel
Environmental Protection Agency
Office of Air and Radiation
Washington, DC 20460
Phone:202 343-9556