{"abstract":"This final rule amends Federal Motor Vehicle Safety Standard (FMVSS) No. 109, New pneumatic and certain specialty tires, to change the test pressure for the physical dimensions test for T-type tires (temporary use spare tires) from 52 pounds per square inch (psi) to 60 psi. This increase in test pressure for the physical dimensions test will marginally increase the stringency of the test and will align FMVSS No. 109 with international and voluntary consensus standards.","action":"Final rule.","agencies":[{"raw_name":"DEPARTMENT OF TRANSPORTATION","name":"Transportation Department","id":492,"url":"https://www.federalregister.gov/agencies/transportation-department","json_url":"https://www.federalregister.gov/api/v1/agencies/492","parent_id":null,"slug":"transportation-department"},{"raw_name":"National Highway Traffic Safety Administration","name":"National Highway Traffic Safety Administration","id":345,"url":"https://www.federalregister.gov/agencies/national-highway-traffic-safety-administration","json_url":"https://www.federalregister.gov/api/v1/agencies/345","parent_id":492,"slug":"national-highway-traffic-safety-administration"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2013/01/17/2013-00938.html","cfr_references":[{"chapter":null,"citation_url":null,"part":571,"title":49}],"citation":"78 FR 3843","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This final rule is effective July 16, 2013. Optional early compliance is permitted immediately. Petitions for reconsideration: If you wish to petition for reconsideration of this rule, your petition must be received by March 4, 2013.","disposition_notes":null,"docket_ids":["Docket No. NHTSA 2013-0003"],"dockets":[],"document_number":"2013-00938","effective_on":"2013-07-16","end_page":3848,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2013/01/17/2013-00938.xml","html_url":"https://www.federalregister.gov/documents/2013/01/17/2013-00938/federal-motor-vehicle-safety-standards-new-pneumatic-and-certain-specialty-tires","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2013-00938?publication_date=2013-01-17","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2013-01-17/2013-00938/mods.xml","not_received_for_publication":null,"page_length":6,"page_views":{"count":3143,"last_updated":"2026-04-04 18:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2013-01-17/pdf/2013-00938.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2013-00938.pdf?1358344445","publication_date":"2013-01-17","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2013/01/17/2013-00938.txt","regulation_id_number_info":{"2127-AK42":{"issue":"201210","html_url":"https://www.federalregister.gov/regulations/2127-AK42/t-type-temporary-spare-tire-physical-dimensions-test-inflation-pressure","title":"T-Type Temporary Spare Tire Physical Dimensions Test Inflation Pressure","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=201210&RIN=2127-AK42&operation=OPERATION_EXPORT_XML","priority_category":"Substantive, Nonsignificant"}},"regulation_id_numbers":["2127-AK42"],"regulations_dot_gov_info":{"supporting_documents":[],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2127-AK42/t-type-temporary-spare-tire-physical-dimensions-test-inflation-pressure","title":"T-Type Temporary Spare Tire Physical Dimensions Test Inflation Pressure"},"comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=NHTSA-2013-0003","supporting_documents_count":0,"docket_id":"NHTSA-2013-0003","regulation_id_number":"2127-AK42","title":"Final Rule Revising Test Pressure in New Pneumatic and Certain Specialty Tires","checked_regulationsdotgov_at":"2013-02-20T05:00:29Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":3843,"subtype":null,"title":"Federal Motor Vehicle Safety Standards; New Pneumatic and Certain Specialty Tires","toc_doc":"New Pneumatic and Certain Specialty Tires","toc_subject":"Federal Motor Vehicle Safety Standards:","topics":["Imports","Motor vehicle safety","Motor vehicles","Rubber and rubber products","Tires"],"type":"Rule","volume":78}