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PROPOSED RULECOMMENTS DUE DECEMBER 28, 2026

Hazardous Materials: Harmonization With International Standards

Transportation Department / Pipeline and Hazardous Materials Safety Administration

PHMSA proposes to update 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 proposed amendments are intended to maintain consistency with the latest international regulations and standards, to reduce costs to entities or individuals within the United States, and to lower the cost of regulations on the U.S. economy.

Published October 27, 2026Document 2026-21922

How to comment

Comments are due December 28, 2026. Submit through the link above or follow the instructions in the document's ADDRESSES section. Say who you are, how the rule affects you, and what should change, with evidence. Comments are usually public, so leave out anything private.

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From the Federal Register as of November 3, 2026. Deadlines can change; the official document governs. Not legal advice.

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