{"abstract":"PHMSA, in coordination with the Federal Railroad Administration (FRA), is amending the Hazardous Materials Regulations to suspend authorization of liquefied natural gas (LNG) transportation in rail tank cars pursuant to a final rule published on July 24, 2020, pending the earlier of either completion of a companion rulemaking evaluating potential modifications to requirements governing rail tank car transportation of LNG, or June 30, 2025.","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":"Pipeline and Hazardous Materials Safety Administration","name":"Pipeline and Hazardous Materials Safety Administration","id":408,"url":"https://www.federalregister.gov/agencies/pipeline-and-hazardous-materials-safety-administration","json_url":"https://www.federalregister.gov/api/v1/agencies/408","parent_id":492,"slug":"pipeline-and-hazardous-materials-safety-administration"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2023/09/01/2023-18569.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"172","title":49}],"citation":"88 FR 60356","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This final rule is effective on October 31, 2023.","disposition_notes":null,"docket_ids":["Docket No. PHMSA-2021-0058 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Rail"}],"document_number":"2023-18569","effective_on":"2023-10-31","end_page":60375,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2023/09/01/2023-18569.xml","html_url":"https://www.federalregister.gov/documents/2023/09/01/2023-18569/hazardous-materials-suspension-of-hmr-amendments-authorizing-transportation-of-liquefied-natural-gas","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2023-18569?publication_date=2023-09-01","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2023-09-01/2023-18569/mods.xml","not_received_for_publication":null,"page_length":20,"page_views":{"count":2702,"last_updated":"2026-10-24 20:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2023-09-01/pdf/2023-18569.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2023-18569.pdf?1693496420","publication_date":"2023-09-01","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2023/09/01/2023-18569.txt","regulation_id_number_info":{"2137-AF55":{"issue":"202304","html_url":"https://www.federalregister.gov/regulations/2137-AF55/hazardous-materials-suspension-of-hmr-amendments-authorizing-transportation-of-liquefied-natural-gas","title":"Hazardous Materials: Suspension of HMR Amendments Authorizing Transportation of Liquefied Natural Gas by Rail","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202304&RIN=2137-AF55&operation=OPERATION_EXPORT_XML","priority_category":"Other Significant"}},"regulation_id_numbers":["2137-AF55"],"regulations_dot_gov_info":{"supporting_documents":[],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2137-AF55/hazardous-materials-suspension-of-hmr-amendments-authorizing-transportation-of-liquefied-natural-gas","title":"Hazardous Materials: Suspension of HMR Amendments Authorizing Transportation of Liquefied Natural Gas by Rail"},"comments_count":0,"agency_id":"PHMSA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=PHMSA-2021-0058","supporting_documents_count":0,"docket_id":"PHMSA-2021-0058","document_id":"PHMSA-2021-0058-7072","regulation_id_number":"2137-AF55","title":"Hazardous Materials: Suspension of HMR Amendments Authorizing Transportation of Liquefied Natural Gas by Rail","checked_regulationsdotgov_at":"2023-09-02T14:00:08Z"},"regulations_dot_gov_url":null,"significant":true,"signing_date":null,"start_page":60356,"subtype":null,"title":"Hazardous Materials: Suspension of HMR Amendments Authorizing Transportation of Liquefied Natural Gas by Rail","toc_doc":"Suspension of Hazardous Materials Regulations Amendments Authorizing Transportation of Liquefied Natural Gas by Rail","toc_subject":"Hazardous Materials:\n","topics":["Education","Hazardous materials transportation","Hazardous waste","Labeling","Packaging and containers","Reporting and recordkeeping requirements"],"type":"Rule","volume":88}