{"abstract":"This NPRM proposes to allow operators of hazardous liquid and carbon dioxide pipelines to determine a valve inspection schedule with a maximum valve inspection interval of 1 year, not to exceed 15 months.","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/2026/04/24/2026-08077.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"195","title":49}],"citation":"91 FR 22119","comment_url":"http://www.regulations.gov/commenton/PHMSA-2026-1554-0002","comments_close_on":"2026-06-23","correction_of":null,"corrections":[],"dates":"Comments must be received on or before June 23, 2026.","disposition_notes":null,"docket_ids":["Docket No. PHMSA-2026-1554"],"dockets":[{"supporting_documents":[{"title":"PRIA: Hazardous Liquid Valve Maintenance Schedule","document_id":"PHMSA-2026-1554-0001"}],"agency_name":"PHMSA","documents":[{"comment_count":0,"comment_start_date":"2026-04-24","updated_at":"2026-04-24T12:01:03.214-04:00","comment_url":"https://www.regulations.gov/commenton/PHMSA-2026-1554-0002","allow_late_comments":false,"id":"PHMSA-2026-1554-0002","comment_end_date":"2026-06-24","regulations_dot_gov_open_for_comment":true}],"supporting_documents_count":1,"id":"PHMSA-2026-1554","title":"Pipeline Safety: Hazardous Liquid Valve Maintenance Schedule"}],"document_number":"2026-08077","effective_on":null,"end_page":22122,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/04/24/2026-08077.xml","html_url":"https://www.federalregister.gov/documents/2026/04/24/2026-08077/pipeline-safety-hazardous-liquid-valve-maintenance-schedule","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-08077?publication_date=2026-04-24","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-04-24/2026-08077/mods.xml","not_received_for_publication":null,"page_length":4,"page_views":{"count":43,"last_updated":"2026-04-24 16:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-04-24/pdf/2026-08077.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2026-08077.pdf?1776948324","publication_date":"2026-04-24","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/04/24/2026-08077.txt","regulation_id_number_info":{"2137-AG58":null},"regulation_id_numbers":["2137-AG58"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"PRIA: Hazardous Liquid Valve Maintenance Schedule","document_id":"PHMSA-2026-1554-0001"}],"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-2026-1554","supporting_documents_count":1,"docket_id":"PHMSA-2026-1554","document_id":"PHMSA-2026-1554-0002","regulation_id_number":"2137-AG58","title":"Pipeline Safety: Hazardous Liquid Valve Maintenance Schedule","checked_regulationsdotgov_at":"2026-04-24T20:55:04Z"},"regulations_dot_gov_url":"http://www.regulations.gov/commenton/PHMSA-2026-1554-0002","significant":null,"signing_date":null,"start_page":22119,"subtype":null,"title":"Pipeline Safety: Hazardous Liquid Valve Maintenance Schedule","toc_doc":"Hazardous Liquid Valve Maintenance Schedule","toc_subject":"Pipeline Safety","topics":["Pipeline safety"],"type":"Proposed Rule","volume":91}