July 5, 2023 Department of Transportation

49 CFR Parts 171, 172, 173, 174, 175, 176, 177, 178, 179, and 180

[Docket No. PHMSA–2019–0031 (HM–265A)] RIN 2137–AF47 H

ACTION: Advance notice of proposed rulemaking (ANPRM).

SUMMARY: PHMSA is publishing this ANPRM to solicit stakeholder feedback on initiatives PHMSA is considering that may modernize the Hazardous Materials Regulations and improve efficiencies while maintaining or improving a current high level of safety. To fully engage with stakeholders, this ANPRM solicits comments and input on questions related to 46 distinct topics under consideration. Any comments, data, and information received will be used to evaluate and potentially draft proposed amendments.

DATES: Comments must be received by October 3, 2023.

https://www.govinfo.gov/content/pkg/FR-2023-07-05/pdf/2023-13903.pdf