2026 Oklahoma Hazardous Material CDL Practice Test 2

You have loaded a hazardous material into a cargo tank. What must you do before you move the vehicle?

Close all manholes and valves. Be sure they are free of leaks. Call CHEMTREC by phone and tell them where you are going. Have the loading observers sign the shipping papers.

Correct Answer:

Close all manholes and valves. Be sure they are free of leaks.

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