{"abstract":"The U.S. Environmental Protection Agency (EPA) is taking direct final action to revise one of the use conditions required for use of hydrofluoroolefin (HFO)-1234yf (2,3,3,3-tetrafluoroprop-1-ene), a substitute for ozone-depleting substances (ODSs) in the motor vehicle air conditioning end-use within the refrigeration and air conditioning sector, to be acceptable subject to use conditions under EPA's Significant New Alternatives Policy (SNAP) program. The revised use condition incorporates by reference a revised standard from SAE International.","action":"Direct final rule.","agencies":[{"raw_name":"ENVIRONMENTAL PROTECTION AGENCY","name":"Environmental Protection Agency","id":145,"url":"https://www.federalregister.gov/agencies/environmental-protection-agency","json_url":"https://www.federalregister.gov/api/v1/agencies/145","parent_id":null,"slug":"environmental-protection-agency"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2012/03/26/2012-6916.html","cfr_references":[{"chapter":null,"citation_url":null,"part":82,"title":40}],"citation":"77 FR 17344","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This rule is effective on May 21, 2012 without further notice, unless EPA receives adverse comment or receives a request for a public hearing by April 23, 2012. If we receive adverse comment or a request for a public hearing, we will publish a timely withdrawal in the Federal Register informing the public that all or part of this rule will not take effect. The incorporation by reference of certain publications listed in the rule is approved by the Director of the Federal Register as of May 21, 2012.","disposition_notes":null,"docket_ids":["EPA-HQ-OAR-2011-0776","FRL-9651-3"],"dockets":[],"document_number":"2012-6916","effective_on":"2012-05-21","end_page":17351,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2012/03/26/2012-6916.xml","html_url":"https://www.federalregister.gov/documents/2012/03/26/2012-6916/protection-of-stratospheric-ozone-amendment-to-hfo-1234yf-snap-rule-for-motor-vehicle-air","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2012-6916?publication_date=2012-03-26","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2012-03-26/2012-6916/mods.xml","not_received_for_publication":null,"page_length":8,"page_views":{"count":620,"last_updated":"2026-07-25 20:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2012-03-26/pdf/2012-6916.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2012-06916.pdf?1332533238","publication_date":"2012-03-26","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2012/03/26/2012-6916.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Draft Direct Final Rule for Protection of Stratospheric Ozone: Amendment to HFO-1234yf SNAP Rule for Motor Vehicle Air Conditioning Sector","document_id":"EPA-HQ-OAR-2011-0776-0006"},{"title":"SAE J2844 OCT2011  R-1234yf (HFO-1234yf) New Refrigerant Purity and Container Requirements for Use in Mobile Air-Conditioning Systems  Revised October 2011","document_id":"EPA-HQ-OAR-2011-0776-0005"},{"title":"SAE J2844 FEB2011 R-1234yf (HFO-1234yf) New Refrigerant Purity and Container Requirements for Use in Mobile Air-Conditioning Systems Adopted February 2011","document_id":"EPA-HQ-OAR-2011-0776-0004"},{"title":"June 13, 2011 Letter from Ken Horen, Honeywell to Cindy Newberg, EPA re:  SNAP EPA-HQ-OAR 2008-0664 HFO-1234yf LGWP MAC Refrigerant Packaging","document_id":"EPA-HQ-OAR-2011-0776-0003"},{"title":"June 22, 2011 Letter from Steven Bernardt, Honeywell to Drusilla Hufford, EPA re:  SNAP EPA-HQ-OAR 2008-0664 HFO-1234yf LGWP MAC Refrigerant Industrial Transfer","document_id":"EPA-HQ-OAR-2011-0776-0002"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2060-AR20/protection-of-stratospheric-ozone-amendment-to-hfo-1234yf-snap-rule-for-motor-vehicle-air-conditioni","title":"Protection of Stratospheric Ozone: Amendment to HFO-1234yf SNAP Rule for Motor Vehicle Air Conditioning Sector"},"comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-HQ-OAR-2011-0776","supporting_documents_count":5,"docket_id":"EPA-HQ-OAR-2011-0776","regulation_id_number":"2060-AR20","title":"Protection of Stratospheric Ozone: Amendment to HFO-1234yf SNAP Rule for Motor Vehicle Air Conditioning Sector","checked_regulationsdotgov_at":"2012-04-27T21:52:56Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":17344,"subtype":null,"title":"Protection of Stratospheric Ozone: Amendment to HFO-1234yf SNAP Rule for Motor Vehicle Air Conditioning Sector","toc_doc":"Amendment to HFO1234yf SNAP Rule for Motor Vehicle Air Conditioning Sector","toc_subject":"Protection of Stratospheric Ozone:","topics":["Administrative practice and procedure","Air pollution control","Environmental protection","Incorporation by reference","Reporting and recordkeeping requirements"],"type":"Rule","volume":77}