{"abstract":"This NPRM proposes to adopt the provisions of DOT special permit (SP) 21379 into the hazardous materials regulations to streamline the transportation of large refrigerating machines filled with flammable gases.","action":"Notice of proposed rulemaking (NPRM).","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/2025/07/01/2025-12100.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"171","title":49},{"chapter":null,"citation_url":null,"part":"173","title":49}],"citation":"90 FR 28552","comment_url":null,"comments_close_on":"2025-09-02","correction_of":null,"corrections":[],"dates":"Comments must be received on or before September 2, 2025.","disposition_notes":null,"docket_ids":["Docket No. PHMSA-2025-0102 (HM-268N)"],"dockets":[{"supporting_documents":[{"title":"DOT-SP 21379 Cover Letter","document_id":"PHMSA-2025-0102-0008"},{"title":"Grantee Notification Letter","document_id":"PHMSA-2025-0102-0003"}],"agency_name":"PHMSA","documents":[{"comment_count":173,"comment_start_date":"2025-07-01","updated_at":"2025-09-03T01:56:23.129-04:00","comment_url":"https://www.regulations.gov/commenton/PHMSA-2025-0102-0001","allow_late_comments":false,"id":"PHMSA-2025-0102-0001","comment_end_date":"2025-09-03","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":2,"id":"PHMSA-2025-0102","title":"Hazardous Materials: Adopt DOT-SP 21379 into the HMR"}],"document_number":"2025-12100","effective_on":null,"end_page":28555,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2025/07/01/2025-12100.xml","html_url":"https://www.federalregister.gov/documents/2025/07/01/2025-12100/hazardous-materials-adoption-of-department-of-transportation-special-permit-21379","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2025-12100?publication_date=2025-07-01","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2025-07-01/2025-12100/mods.xml","not_received_for_publication":null,"page_length":4,"page_views":{"count":964,"last_updated":"2026-10-25 06:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2025-07-01/pdf/2025-12100.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2025-12100.pdf?1751055316","publication_date":"2025-07-01","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2025/07/01/2025-12100.txt","regulation_id_number_info":{"2137-AG16":{"issue":"202504","html_url":"https://www.federalregister.gov/regulations/2137-AG16/hazardous-materials-adopt-dot-special-permit-21379-into-the-hmr","title":"Hazardous Materials: Adopt DOT Special Permit 21379 into the HMR","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202504&RIN=2137-AG16&operation=OPERATION_EXPORT_XML","priority_category":"Substantive, Nonsignificant"}},"regulation_id_numbers":["2137-AG16"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Grantee Notification Letter","document_id":"PHMSA-2025-0102-0003"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2137-AG16/hazardous-materials-adopt-dot-special-permit-21379-into-the-hmr","title":"Hazardous Materials: Adopt DOT Special Permit 21379 into the HMR"},"comments_count":173,"agency_id":"PHMSA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=PHMSA-2025-0102","supporting_documents_count":1,"docket_id":"PHMSA-2025-0102","document_id":"PHMSA-2025-0102-0001","regulation_id_number":"2137-AG16","title":"Hazardous Materials: Adopt DOT-SP 21379 into the HMR","checked_regulationsdotgov_at":"2025-09-04T08:55:03Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":28552,"subtype":null,"title":"Hazardous Materials: Adoption of Department of Transportation Special Permit 21379","toc_doc":"Adoption of Department of Transportation Special Permit 21379","toc_subject":"Hazardous Materials","topics":["Exports","Hazardous materials transportation","Hazardous waste","Imports","Incorporation by reference","Packaging and containers","Reporting and recordkeeping requirements"],"type":"Proposed Rule","volume":90}