Who must attend (watch) a cargo tank while it is being loaded or unloaded?

A qualified person who is alert and within 25 feet. Section 9.5.2: The person watching must be alert, have a clear view, and be within 25

Who must attend (watch) a cargo tank while it is being loaded or unloaded?

ANSWER BREAKDOWN
  • A. Incorrect. "The shipper only" is not correct. The person watching must be alert, have a clear view, and be within 25 feet of the tank.
  • B. Correct. The person watching must be alert, have a clear view, and be within 25 feet of the tank.
  • C. Incorrect. "Security guard" is not correct. The person watching must be alert, have a clear view, and be within 25 feet of the tank.
  • D. Incorrect. "No one needs to watch if the valves are secure" is not correct. The person watching must be alert, have a clear view, and be within 25 feet of the tank.