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Proposed rule

Hazardous Materials: Harmonization With International Standards

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Feb. 10, 2026. Document 2026-02575. Updated Nov. 15, 2026.

What it does

PHMSA proposes to amend the Hazardous Materials Regulations to adopt certain international regulations and standards related to proper shipping names, hazard classes, packing groups, special provisions, packaging authorizations, air transport quantity limitations, and vessel stowage requirements. These amendments are intended to maintain consistency with the latest international standards and regulations, and to reduce costs to entities or individuals within the United States or to otherwise lower the cost of regulations on the United States economy.

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

What it would change

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

49 CFR 171, 49 CFR 172, 49 CFR 173, 49 CFR 175, 49 CFR 176, 49 CFR 178, 49 CFR 180

Before this

No earlier Federal Register document under regulation identifier 2137-AF64 since Jan. 1, 2025.

What happens next and when

Comments must be received by April 13, 2026. To the extent possible, PHMSA will consider late-filed comments while a final rule is developed.

The agency's dates, word for word.

Document number2026-02575
ActionNotice of proposed rulemaking (NPRM).
AgenciesTransportation Department; Pipeline and Hazardous Materials Safety Administration
PublishedFeb. 10, 2026
Comments closeApril 13, 2026
Regulation identifier (RIN)2137-AF64
DocketPHMSA-2023-0111

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