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EPA/OAR RIN: 2060-AV25 Publication ID: Fall 2021 
Title: Protection of Stratospheric Ozone: Listing of HFO-1234yf Under Significant New Alternatives Policy Program for Motor Vehicle Air Conditioning in Nonroad Vehicles and Servicing Fittings for Small Cans 

EPA has received a number of manufacturers' submissions concerning listings of substitutes under the Significant New Alternatives Policy program. This rule would propose listings based upon EPA's evaluation of one of these substitutes, HFO-1234yf, for use in motor vehicle air conditioning (MVAC). Such a listing would provide additional flexibility for industry stakeholders to use HFO-1234yf in MVAC systems of certain newly manufactured nonroad vehicles and would allow for the safe and effective servicing of MVAC systems with refrigerant contained in small cans.

Agency: Environmental Protection Agency(EPA)  Priority: Other Significant 
RIN Status: Previously 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  11/00/2021 
Final Rule  03/00/2022 
Additional Information: EPA-HQ-OAR-2021-0347.
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL:  
Sectors Affected: 3361 Motor Vehicle Manufacturing; 336111 Automobile Manufacturing; 336112 Light Truck and Utility Vehicle Manufacturing; 33612 Heavy Duty Truck Manufacturing 
RIN Data Printed in the FR: No 
Agency Contact:
Chenise Farquharson
Environmental Protection Agency
Office of Air and Radiation
1200 Pennsylvania Avenue NW, Mail Code 7405M,
Washington, DC 20460
Phone:202 564-7768
Fax:202 564-4775

Margaret Sheppard
Environmental Protection Agency
Office of Air and Radiation
1200 Pennsylvania Avenue NW, Mail Code 6205T,
Washington, DC 20460
Phone:202 343-9163
Fax:202 343-2338