PHMSA proposes to update the Hazardous Materials Regulations to adopt certain international regulations and standards related to proper shipping names, hazard classes, packing groups, special provisions, packaging authorizations, air transport quantity limitations, and vessel stowage requirements. These proposed amendments are intended to maintain consistency with the latest international regulations and standards, to reduce costs to entities or individuals within the United States, and to lower the cost of regulations on the U.S. economy. Comments must be received by 28 December 2026. Steven Webb or Aaron Wiener, International Program, or Steven Andrews, Standards and Rulemaking, at 202-366-8553, Pipeline and Hazardous Materials Safety Administration, U.S. Department of Transportation, 1200 New Jersey Avenue SE, East Building, Washington, DC 20590-0001. (Federal Register 27 October 2026 [Proposed Rule] Pages 67720-67763).