Is it legal to move a cargo tank with open valves or manhole covers?

No, unless it is empty according to 49 CFR 173.29 and properly cleaned/purged. Section 9.5.2: It is illegal to move a cargo tank with open

Is it legal to move a cargo tank with open valves or manhole covers?

ANSWER BREAKDOWN
  • A. Incorrect. "Yes, if driving slowly" is not correct. It is illegal to move a cargo tank with open valves or covers unless it is empty according to 49 CFR 173.29.
  • B. Incorrect. "Yes, if the tank is empty" is not correct. It is illegal to move a cargo tank with open valves or covers unless it is empty according to 49 CFR 173.29.
  • C. Correct. It is illegal to move a cargo tank with open valves or covers unless it is empty according to 49 CFR 173.29.
  • D. Incorrect. "No, never, regardless of status" is not correct. It is illegal to move a cargo tank with open valves or covers unless it is empty according to 49 CFR 173.29.