An airplane or helicopter with a tail hook should swoop over the vehicle and take it off the ground, like a hawk!! Just kidding-- it must be towed if it's interfering with aircraft or airport operations.
In the parking hardstands.
Vehicle will be clear of the wingtips and must be visible to personnel in the cockpit
Anytime the vehicle is on the Airfield
Vehicles without integral braking systems are required to be chocked when parked on an airfield.
Both A & B
Terminal or simply parking or tarmac
vehicles without an integral braking system.
On the Parking Apron.
Vehicle will be clear of the wingtips and must be visible to personnel in the cockpit
Vehicle lights on, permission from act ground, pilot informed Marshall in attendance
The same as it is for any other vehicle. What that distance is varies by jurisdiction. It may be anywhere from six to 24 inches.
That is the Parking Apron.