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Final ruleTook effect Oct. 28, 2026

Hazardous Materials: Incorporation of ASME Code Section XII and the National Board Inspection Code

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Sept. 28, 2026. Document 2026-19741. Updated Nov. 5, 2026.

What it does

PHMSA is amending the Hazardous Materials Regulations (HMR) to incorporate by reference and authorize the use of the 2015 edition of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code, Section XII--Rules for Construction and Continued Service of Transport Tanks for the construction and continued service of certain specification cargo tank motor vehicles (CTMVs), cryogenic portable tanks, and multi-unit tank car tanks. PHMSA is also amending the HMR to incorporate by reference and authorize the use of the 2015 edition of the National Board of Boiler and Pressure Vessel Inspectors National Board Inspection Code, Parts 2 and 3 (including Supplement 6) as it applies to the continued service of transport packagings constructed to ASME Section XII standards, as well as for existing CTMVs constructed in accordance with ASME requirements and the HMR. PHMSA finds these updates will result in cost savings and increased regulatory flexibility without compromising safety.

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

What changed in the regulation

6 parts of Title 49 of the Code of Federal Regulations:

49 CFR 107, 49 CFR 171, 49 CFR 173, 49 CFR 178, 49 CFR 179, 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

No earlier Federal Register document under regulation identifier 2137-AE58 since Jan. 1, 2025.

What happens next and when

Effective date: October 28, 2026.

The agency's dates, word for word.

Document number2026-19741
ActionFinal rule.
AgenciesTransportation Department; Pipeline and Hazardous Materials Safety Administration
PublishedSept. 28, 2026
Effective dateOct. 28, 2026
Regulation identifier (RIN)2137-AE58
DocketPHMSA-2010-0019

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