Regulatory Affairs
December 13, 2022

Can ASME 450L tanks be transported in the same manner as a DOT 420 cylinder?

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The CPA is often asked by members if ASME Tanks of 450L or less can be transported in the same manner as the B339 spec cylinders (DOT 420 cylinder), which allows them to be transported at 80% capacity.
The short answer is yes. Clause 6.6 of CSA B340-18 allows ASME tanks 450L or less, which are built to meet the requirements of CSA B51 standard, to be treated the same way as DOT 420 cylinders and transported with up to 80% capacity.


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