On vehicles, the two most common locations for remote shutoffs are at the rear of the cargo tank or behind the driver's door.

• A. Rear of the cargo tank and behind the driver's door
• B. Front bumper
• C. Under the vehicle
• D. In the cab behind the seat

Answer: (A)

The main idea is that remote shutoffs are placed where they can be reached quickly to stop product flow in an emergency. Having them at the rear of the cargo tank allows a responder to shut off the flow from behind the vehicle, which is especially important if the cab area is unsafe or inaccessible. Placing another shutoff behind the driver’s door gives the operator a fast way to cut off flow from inside or right beside the cab, without having to approach the tank itself. Together, these two locations maximize quick access from either end of the vehicle, reducing exposure and stopping the flow as soon as possible.

Other spots, like the front bumper, beneath the vehicle, or inside the cab behind the seat, aren’t as practical or reliable for rapid access during emergencies, which is why the rear of the tank and behind the driver’s door are the standard locations.