Data / Federal rules / 2025-12083
Hazardous Materials: Adoption of Department of Transportation Special Permit 14175
The Pipeline and Hazardous Materials Safety Administration published this proposed rule in the Federal Register on July 1, 2025. Comments closed on September 2, 2025.
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What the agency says
PHMSA proposes adopting the provisions of Department of Transportation (DOT) special permit (SP) 14175 into the hazardous materials regulations to authorize a 10-year requalification period when using the ultrasonic examination (UE) testing method for DOT specification 3A and 3AA used for flammable and non-flammable, nonpoisonous gas service. The proposed adoption reflects advances in testing technology and would relieve the burden of performing more frequent cylinder requalification.
Key facts
- Document number
- 2025-12083
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Pipeline and Hazardous Materials Safety Administration
- Published
- July 1, 2025
- Comments due
- September 2, 2025
- Dates
- Comments must be received on or before September 2, 2025.
- Docket
- Docket No. PHMSA-2025-0103 (HM-268O)
- Regulation ID (RIN)
- 2137-AG17
- Code of Federal Regulations
- 49 CFR 180
- Topics
- Hazardous materials transportation; Motor carriers; Motor vehicle safety; Packaging and containers; Railroad safety; Reporting and recordkeeping requirements
- Pages
- 6
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 hazardous materials transportation · Rules on motor carriers · Rules on motor vehicle safety · Published in July 2025
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.