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Portable tanks
  • The HMR outlines specifics for portable tanks used to transport hazardous materials.

A portable tank is a bulk packaging (except a cylinder having a water capacity of 1000 pounds or less) designed primarily to be loaded onto, or on, or temporarily attached to a transport vehicle or ship and equipped with skids, mountings, or accessories to facilitate handling of the tank by mechanical means. It does not include a cargo tank, tank car, multi-unit tank car tank, or trailer carrying 3AX, 3AAX or 3T cylinders. The definition for portable tank can be found in 171.8.

The specifications for construction of portable tanks can be found in Part 178, subpart H of the Hazardous Materials Regulations. Portable tanks include Department of Transportation (DOT) specification portable tanks, intermodal (IM) portable tanks and United Nations (UN) portable tanks.

Portable tanks are required to undergo certain tests and inspections. For more information see 178.276,178.277, and Part 180, subpart G.

Portable tanks are required to be properly marked, labeled or placarded for transport. For information on these topics see the ezExplanations Markings, Labeling, and Placarding.