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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-Incident Reporting


Published Date: 08/18/2023

Comment: Comment now on

Federal Register: 2023-17752

Docket Number: PHMSA-2021-0109

Action: Notice


On March 22, 2022, PHMSA announced an initiative to convert historical letters of interpretation (LOI) applicable to the Hazardous Materials Regulations that have been issued to specific stakeholders into broadly applicable frequently asked questions (FAQ). On December 9, 2022, PHMSA finalized the first set of FAQ and announced the topic for the next FAQ. This notice contains the second set of FAQ.


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Effective Date: Friday, August 18, 2023
Issued Date: Friday, August 18, 2023