Rule2025-19334
Pipeline Safety: Standards Update-PPI-TR 4
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
October 2, 2025
Effective
January 1, 2026
Issuing agencies
Transportation DepartmentPipeline and Hazardous Materials Safety Administration
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."
Full Text
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<title>Federal Register, Volume 90 Issue 189 (Thursday, October 2, 2025)</title>
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[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 [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-19334]
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DEPARTMENT OF TRANSPORTATION
Pipeline and Hazardous Materials Safety Administration
49 CFR Part 192
[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.
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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
<a href="/cdn-cgi/l/email-protection#4527372c242b2b246b322c29362a2b05212a316b222a33"><span class="__cf_email__" data-cfemail="3654445f5758585718415f5a4559587652594218515940">[email protected]</span></a>.
SUPPLEMENTARY 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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</html>Indexed from Federal Register on October 2, 2025.
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