March 30, 2017: (HM-251N)(FR) Hazardous Materials: Harmonization With International Standards

PHMSA has issued a final rule amending the Hazardous Materials Regulations in an effort to maintain consistency with the current international regulations and standards.
Some of the amendments include changes to proper shipping names, hazard classes, packing groups and authorizations, quantity limitations for air transportation, and vessel stowage requirements.
The rule will be effective as of March 30, 2017. The only exception to the effective date is Instruction 22 which will be effective on January 2, 2019.

Docket No. PHMSA–2015–0273 (HM–215N)