May 11, 2020: (FR)(HM-2150) Harmonization With International Standards

In an effort to maintain alignment with international regulations and standards, PHSMA has issued numerous amendments to the Hazardous Materials Regulations. Some of the changes include changes to proper shipping names, hazard classes, packing groups, special provisions, packaging authorizations, air transport quantity limitations, and vessel stowage requirements.
Additionally, PHMSA will be adopting several amendments that will increase  alignment with Transport Canada.  The final rule will be effective on May 11, 2020 with the exception of instruction 17, which will not be effective until January 2, 2023.

Docket No. PHMSA–2017–0108 (HM–215O)