PHMSA amends the Hazardous Materials Regulations (HMR) to update, clarify, improve the safety of, or streamline various regulatory requirements. Specifically, this rulemaking responds to 18 petitions for rulemaking submitted by the regulated community between May 2018 and October 2020 that requests PHMSA address a variety of provisions, including but not limited to those addressing packaging, hazard communication, and the incorporation by reference of certain documents. These revisions maintain or enhance the existing high level of safety under the HMR while providing clarity and appropriate regulatory flexibility in the transport of hazardous materials. This final rule is effective on 3 April 2024. POC is Steven Andrews, 202–366–8553, Office of Hazardous Materials Standards, Pipeline and Hazardous Materials Safety Administration, U.S. Department of Transportation, 1200 New Jersey Avenue SE, East Building, 2nd Floor, Washington, DC 20590–0001.

(Federal Register 4 March 2024 [Rule] Pages 15636-15668)