{"abstract":"PHMSA is confirming the effective date for the DFR that appeared in the Federal Register on July 1, 2025. The DFR amended PHMSA's regulations to incorporate by reference the updated industry standard Plastic Pipe Institute (PPI) Technical Report (TR)-4, \"PPI HSB Listing of Hydrostatic Design Basis (HDB), Hydrostatic Design Stress (HDS), Strength Design Basis (SDS), Pressure Design Basis (PDB) and Minimum Required Strength (MRS) Ratings For Thermoplastic Piping Materials or Pipe.\"","action":"Direct final rule (DFR); confirmation of effective date.","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/2025/10/02/2025-19334.html","cfr_references":[{"chapter":null,"citation_url":null,"part":192,"title":49}],"citation":"90 FR 47623","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"PHMSA confirms the effective date of January 1, 2026, for the DFR that appeared in the Federal Register on July 1, 2025 (90 FR 28075) .","disposition_notes":null,"docket_ids":["Docket No. PHMSA-2025-0132"],"dockets":[{"supporting_documents":[],"agency_name":"PHMSA","documents":[{"comment_count":0,"comment_start_date":"2025-10-02","updated_at":"2025-10-02T18:05:12.417-04:00","comment_url":"https://www.regulations.gov/commenton/PHMSA-2025-0132-0003","allow_late_comments":false,"id":"PHMSA-2025-0132-0003","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":0,"id":"PHMSA-2025-0132","title":"Pipeline Safety: Standards Update - PPI-TR 4"}],"document_number":"2025-19334","effective_on":"2026-01-01","end_page":47623,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2025/10/02/2025-19334.xml","html_url":"https://www.federalregister.gov/documents/2025/10/02/2025-19334/pipeline-safety-standards-update-ppi-tr-4","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2025-19334?publication_date=2025-10-02","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2025-10-02/2025-19334/mods.xml","not_received_for_publication":null,"page_length":1,"page_views":{"count":134,"last_updated":"2026-04-04 16:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2025-10-02/pdf/2025-19334.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2025-19334.pdf?1759322727","publication_date":"2025-10-02","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2025/10/02/2025-19334.txt","regulation_id_number_info":{"2137-AG01":null},"regulation_id_numbers":["2137-AG01"],"regulations_dot_gov_info":{"supporting_documents":[],"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-2025-0132","supporting_documents_count":0,"docket_id":"PHMSA-2025-0132","document_id":"PHMSA-2025-0132-0003","regulation_id_number":null,"title":"Pipeline Safety: Standards Update - PPI-TR 4","checked_regulationsdotgov_at":"2025-10-04T00:55:03Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":47623,"subtype":null,"title":"Pipeline Safety: Standards Update-PPI-TR 4","toc_doc":"Standards UpdatePPITR 4","toc_subject":"Pipeline Safety","topics":[],"type":"Rule","volume":90}