Rulemakinghistorical
90 FR 47623
Pipeline Safety: Standards Update-PPI-TR 4
Current as of 2026-01-01 Government source
Pipeline and Hazardous Materials Safety AdministrationOfficial agency material
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RegulusPipeline researchRegulusPipeline research90 FR 47623
Passage 1[Federal Register Volume 90, Number 189 (Thursday, October 2, 2025)] [Rules and Regulations] [Page 47623] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 2025-19334] ----------------------------------------------------------------------- Pipeline and Hazardous Materials Safety Administration [Docket No. PHMSA-2025-0132] RIN 2137-AG01 Pipeline Safety: Standards Update--PPI-TR 4 AGENCY: Pipeline and Hazardous Materials Safety Administration (PHMSA), Department of Transportation (DOT). ACTION: Direct final rule (DFR); confirmation of effective date. ----------------------------------------------------------------------- SUMMARY: 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.'' 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) . FOR FURTHER INFORMATION CONTACT: Brianna Wilson, Transportation Specialist, by phone at 771-215-0969 or email at [email protected].#
Passage 2SUPPLEMENTARY INFORMATION: On July 1, 2025 (90 FR 28075), PHMSA published a DFR amending its regulations at 49 CFR part 192 to incorporate by reference the 2024 edition of 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.'' Reference to the 2024 edition of the standard will replace the existing reference to PPI TR-4/2011, ``PPI Listing of Hydrostatic Design Basis (HDB), Hydrostatic Design Stress (HDS), Strength Design Basis (SDB), Pressure Design Basis (PDB) and Minimum Required Strength (MRS) Ratings For Thermoplastic Piping Materials or Pipe,'' March 2011, within 49 CFR 192.121(b)(4). PHMSA issued the DFR under the procedures set forth at 49 CFR 190.339. In accordance with those provisions, PHMSA stated in the DFR that if no adverse comments were received, the DFR would become final and effective on January 1, 2026. PHMSA did not receive any comments that warranted withdrawal of the DFR; therefore, this rule will become effective as scheduled. Issued in Washington, DC, on September 30, 2025, under the authority designated in 49 CFR 1.97. Benjamin D. Kochman, Deputy Administrator. [FR Doc. 2025-19334 Filed 10-1-25; 8:45 am] BILLING CODE 4910-60-P#
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