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Community QuestionSeen on 12 CBTs

what must you do before you move a cargo tank of hazardous material

  1. A.double check the air brake system.
  2. B.close all manholes and valves.
  3. C.call chemtrec at (800) 424-9300.
  4. D.all of the above.
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Answer

B. close all manholes and valves.

All 12 indexed CBT versions give this answer·Answer index rebuilt Aug 16, 2026

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