federal_register: 2025-12079

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document_number title type abstract publication_date pub_year pub_month html_url pdf_url agency_names agency_ids excerpts regulation_id_numbers
2025-12079 Pipeline Safety: Standards Update-PPI-TR 4 Rule This DFR amends PHMSA's regulations to incorporate by reference the updated industry standard PPI 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. This updated standard will maintain or improve public safety, prevent regulatory confusion, reduce compliance burdens on stakeholders, and satisfy a mandate in the National Technology Transfer and Advancement Act (NTTAA) of 1995. 2025-07-01 2025 7 https://www.federalregister.gov/documents/2025/07/01/2025-12079/pipeline-safety-standards-update-ppi-tr-4 https://www.govinfo.gov/content/pkg/FR-2025-07-01/pdf/2025-12079.pdf Transportation Department; Pipeline and Hazardous Materials Safety Administration 492,408 This DFR amends PHMSA's regulations to incorporate by reference the updated industry standard PPI TR-4, PPI HSB Listing of Hydrostatic Design Basis (HDB), Hydrostatic Design Stress (HDS), Strength Design Basis (SDS), Pressure Design Basis (PDB) and... 2137-AG01

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