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Hazardous Materials: Harmonization With the United Nations Recommendations on the Transport of Dangerous Goods Model Regulations, International Maritime Dangerous Goods Code, International Civil Aviation Organization Technical Instructions for the Safe Transport of Dangerous Goods by Air, and Transport Canada's Transport of Dangerous Goods Regulations

Advanced notice of proposed rulemaking (ANPRM).

PHMSA is considering amending the Hazardous Materials Regulations (HMR) by incorporating various amendments to international standards and modal regulations, including changes to proper shipping names, hazard classes, packing groups, special provisions, and packaging authorizations. These amendments may be necessary to harmonize the HMR with revised editions of the United Nations Recommendations on the Transport of Dangerous Goods Model Regulations and Manual of Tests and Criteria, the International Maritime Organization's Dangerous Goods Code, the International Civil Aviation Organization's Technical Instructions for the Safe Transport of Dangerous Goods by Air and Transport Canada's Transport of Dangerous Goods Regulations. In this notice, we are soliciting public comment regarding the safety consequences, regulatory burden, and cost implications of some of the more significant amendments adopted or under consideration for adoption in these international standards.

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