Tuesday, October 27, 2026

Review - PHMSA Published International Harmonization NPRM – 10-27-26

Today, DOT’s Pipeline and Hazardous Materials Safety Administration (PHMSA) published a notice of proposed rulemaking (NPRM) on “Hazardous Materials: Harmonization With International Standards”. PHMSA periodically updates the hazardous materials regulations (HMR) to better reflect changes in international hazardous materials shipping regulations. 

The executive summary notes that:  

“The proposed amendments will maintain the current levels of safety achieved under the HMR. Harmonizing the HMR with international regulations and standards will reduce delays and interruptions in the transportation of hazardous materials and promote the free flow of commerce by eliminating unnecessary and outdated regulatory requirements. Overall, the proposed amendments will reduce costs to entities or individuals within the U.S. or otherwise lower the cost of regulations on the U.S. economy.” 

The preamble includes discussions about: 

Public Comments  

PHMSA is soliciting public comments on this NPRM. Comments may be submitted via the Federal eRulemaking Portal (www.Regulations.gov; docket # PHMSA-2025-0048). Comments should be submitted to PHMSA by December 28th, 2026. 


For more information on the provisions of this rulemaking, see my article at CFSN Detailed Analysis - - subscription required. NOTE: Free subscribers to CFSN will receive their email copy of that article on October 29th. 

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