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EPA/AR RIN: 2060-AR20 Publication ID: 2012 
Title: Protection of Stratospheric Ozone: Amendment to HFO-1234yf SNAP Rule for Motor Vehicle Air Conditioning Sector 
Abstract: This action updated a rule requirement in the Significant New Alternatives Policy (SNAP) Program rule for HFO-1234yf to use the latest edition of a standard from Society of Automotive Engineers (SAE) International. The revised standard requires use of a more robust fitting that is less likely to leak than that currently cited in the March 29, 2011, SNAP rule allowing use of HFO-1234yf as a refrigerant in motor vehicle air conditioning (76 FR 17488). The update to the standard referenced in the rule reduces emissions and ensures consistency with industry standards. 
Agency: Environmental Protection Agency(EPA)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Completed Actions 
Major: No  Unfunded Mandates: No 
CFR Citation: 40 CFR 82   
Legal Authority: 42 USC 7671(k)   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  03/23/2012  77 FR 16988   
Direct Final Rule  03/26/2012  77 FR 17344   
NPRM Comment Period End  04/23/2012 
Direct Final Rule Effective  05/21/2012 
Additional Information: Docket #:EPA-HQ-OAR-2011-0776
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Federal 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL: http://www.epa.gov/ozone/snap  
Sectors Affected: 336111 Automobile Manufacturing; 811111 General Automotive Repair 
RIN Data Printed in the FR: No 
Agency Contact:
Margaret Sheppard
Environmental Protection Agency
Air and Radiation
1200 Pennsylvania Avenue NW, Mail Code 6205T,
Washington, DC 20460
Phone:202 343-9163
Fax:202 343-2338
Email: sheppard.margaret@epa.gov

Yaidi Cancel
Environmental Protection Agency
Air and Radiation
6205J,
Washington, DC 20460
Phone:202 343-9512
Fax:202 343-2338
Email: cancel.yaidi@epa.gov