Hazardous materials regulations updated in PHMSA final rule

Revisions effective July 5, 2016

Posted June 3, 2016

The Pipeline and Hazardous Materials Safety Administration (PHMSA) published a final rule in the June 2 Federal Register revising the Hazardous Materials Regulations (HMR) to make miscellaneous amendments in order to update and clarify certain regulatory requirements.

According to PHMSA, the amendments are designed to promote safer transportation practices, address petitions for rulemaking, respond to National Transportation Safety Board (NTSB) Safety Recommendations, facilitate international commerce, make editorial corrections, and simplify the regulations.

The amendments include, but are not limited to:

  • Removing the packing group (PG) II designation for certain organic peroxides, self-reactive substances, and explosives;
  • Incorporating requirements for trailers of manifolded acetylene cylinders;
  • Providing requirements to allow for shipments of damaged wet electric batteries; and
  • Revising the requirements for the packaging of nitric acid, testing of pressure relief devices on cargo tanks, and shipments of black or smokeless powder for small arms.

The rule is effective July 5, 2016, with an authorized voluntary compliance date of June 2, 2016.

The incorporation by reference of certain publications listed in the rule is approved by the Director of the Federal Register as of July 5, 2016.


Hazardous Materials Regulations GuideJ. J. Keller's Hazardous Materials Regulations Guide provides quick access to up-to-date DOT Hazardous Materials Regulations, including §172.101 Hazardous Materials Table and amendments from HM-233B, HM-145O, HM-218F, HM-244D, and HM-215K.


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