Paragraph 42 Right of way on the groundI1

This rule applies to flying machines and vehicles on any part of a land aerodrome provided for the use of aircraft.

Notwithstanding any air traffic control clearance it remains the duty of the pilot-in-command of a flying machine to take all possible measures to ensure that the flying machine does not collide with any other aircraft or vehicle.

Flying machines and vehicles must give way to aircraft which are taking off or landing.

Vehicles and flying machines which are not taking off or landing must give way to vehicles towing aircraft.

Vehicles which are not towing aircraft must give way to aircraft.