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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Hazardous Materials: Frequently Asked Questions-Training Requirements

2024-05268.pdf (230.49 KB)



On March 22, 2022, PHMSA announced an initiative to convert historical letters of interpretation (LOI) applicable to the Hazardous Materials Regulations (HMR) that have been issued to specific stakeholders into broadly applicable frequently asked questions (FAQ). On December 9, 2022, PHMSA published the first set of FAQ regarding applicability of the HMR. On August 18, 2023, PHMSA published the second set of FAQ regarding incident reporting. Today's notice contains the third set of FAQ regarding training requirements.


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Effective Date: Wednesday, March 13, 2024
Issued Date: Wednesday, March 13, 2024