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Final ruleTook effect Sept. 3, 2026

Hazardous Materials: Adoption of Department of Transportation Special Permit 14175

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Aug. 4, 2026. Document 2026-15819. Updated Nov. 7, 2026.

What it does

This final rule removes undue regulatory burdens by adopting the provisions of U.S. Department of Transportation (DOT) special permit (SP) 14175 to authorize a 10-year requalification period and the ultrasonic examination (UE) testing method for DOT specification 3A and 3AA cylinders in flammable and non-flammable, nonpoisonous gas service. This adoption reflects advances in testing technology and will relieve stakeholders of the burden of performing more frequent cylinder requalification.

The Pipeline and Hazardous Materials Safety Administration's summary, as published in the Federal Register.

What changed in the regulation

1 part of Title 49 of the Code of Federal Regulations:

49 CFR 180

Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).

Compared with

The Pipeline and Hazardous Materials Safety Administration has published 67 final rules in 2026 so far, compared with 42 in all of 2025.

Counted by the Tribune from Federal Register records since Jan. 1, 2025.

Before this

1 earlier Federal Register document under regulation identifier 2137-AG17 since Jan. 1, 2025.

What happens next and when

This final rule is effective September 3, 2026.

The agency's dates, word for word.

Document number2026-15819
ActionFinal rule.
AgenciesTransportation Department; Pipeline and Hazardous Materials Safety Administration
PublishedAug. 4, 2026
Effective dateSept. 3, 2026
Regulation identifier (RIN)2137-AG17
DocketPHMSA-2025-0103

Source: the Federal Register (public domain). The document in the Federal Register