Drivers must make every reasonable effort to use the track at all times and may not leave the track without a justifiable reason.
Drivers will be judged to have left the track if no part of the car remains in contact with it and, for the avoidance of doubt, any white lines defining the track edges are considered to be part of the track but the kerbs are not.
Should a car leave the track the driver may re-join, however, this may only be done when it is safe to do so and without gaining any lasting advantage. At the absolute discretion of the Race
Director a driver may be given the opportunity to give back the whole of any advantage he gained by leaving the track.
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