Data / Federal rules / 2026-08053
Pipeline Safety: Standards Update-ASME B31.4
The Pipeline and Hazardous Materials Safety Administration published this final rule in the Federal Register on April 24, 2026. It takes effect on January 1, 2027. Comments closed on June 23, 2026.
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What the agency says
This DFR amends PHMSA's regulations to incorporate by reference an updated edition of industry standard ASME B31.4, Pipeline Transportation Systems for Liquids and Slurries: ASME Code for Pressure Piping, B31. 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.
Key facts
- Document number
- 2026-08053
- Type
- Final rule
- Action
- Direct final rule (DFR); request for comments
- Agency
- Transportation Department; Pipeline and Hazardous Materials Safety Administration
- Published
- April 24, 2026
- Takes effect
- January 1, 2027
- Comments due
- June 23, 2026
- Dates
- The DFR is effective January 1, 2027, unless adverse comments are received by June 23, 2026. If adverse comments are received, notification will be published in the Federal Register before the effective date withdrawing the rule and publishing a notice of proposed rulemaking to provide an additional opportunity for public comment. Compliance after June 23, 2026 is authorized. The incorporation by reference of certain material listed in this rule is approved by the Director of the Federal Register as of January 1, 2027.
- Docket
- Docket No. PHMSA-2026-1535; Amdt. No. 195-123
- Regulation ID (RIN)
- 2137-AG39
- Code of Federal Regulations
- 49 CFR 195
- Topics
- Carbon dioxide; Incorporation by reference; Petroleum; Pipeline safety
- Pages
- 5
Other documents from the Pipeline and Hazardous Materials Safety Administration
| Document | Type | Published |
|---|---|---|
| Hazardous Materials: Incorporation of ASME Code Section XII and the National Board Inspection Code 2026-19741 | Final rule | Sep 28 |
| Hazardous Materials: Allowing Fireworks Certification Agencies (FCAs) To Approve Professional Fireworks 2026-16111 | Final rule | Aug 7 |
| Hazardous Materials: Reducing Burdens on Domestic Companies Using Battery-Powered Equipment in Trades 2026-15823 | Final rule | Aug 4 |
| Hazardous Materials: Adoption of Department of Transportation Special Permit 21478 2026-15820 | Final rule | Aug 4 |
| Hazardous Materials: Adoption of Department of Transportation Special Permit 14175 2026-15819 | Final rule | Aug 4 |
| Hazardous Materials: Adoption of Department of Transportation Special Permit 21379 2026-15818 | Final rule | Aug 4 |
| Hazardous Materials: Adoption of Department of Transportation Special Permit 21287 2026-15817 | Final rule | Aug 4 |
| Hazardous Materials: Adoption of Department of Transportation Special Permits 12412 and 11646 Into the Hazardous Materials Regulations 2026-15816 | Final rule | Aug 4 |
Everything from the Pipeline and Hazardous Materials Safety Administration · Rules on carbon dioxide · Rules on incorporation by reference · Rules on petroleum · Published in April 2026
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.