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General

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Hazardous Matters April - June 2025

"Hazardous Matters" is the quarterly newsletter for PHMSA's Office of Hazardous Materials Safety (OHMS). As always, it is packed with the latest news, expert tips, and essential insights for the safe handling and shipment of hazardous materials. Stay informed, stay safe!

April...

Materials of Trade (MOTs)

Materials of Trade, or MOTs, are a category of hazmat which, when transported by motor vehicle in small quantities as part of a business (other than transportation), are subject to fewer HMR requirements due to the limited hazard they pose. This brochure provides a general overview of the...

USDOT Issues Corrective Action Order for Keystone Pipeline Spill

PHMSA 03-25 Contact: PHMSA Public Affairs, PHMSAPublicAffairs@dot.gov  

WASHINGTON – The U.S. Department of Transportation’s Pipeline and Hazardous Materials Safety Administration (PHMSA) today issued a Corrective Action Order (CAO) to South Bow which directs the operator to take...

PHMSA Status Update on Keystone Pipeline

FOR IMMEDIATE RELEASE PHMSA 02-25 Contact: PHMSAPublicAffairs@dot.gov   

WASHINGTON, D.C. – The U.S. Department of Transportation’s Pipeline and Hazardous Materials Safety Administration (PHMSA) has dispatched a total of 8 inspectors to investigate the pipeline rupture....