Under what condition are vehicles prohibited from operating airside?

Vehicles are prohibited from operating airside if the driver does not possess a valid Airside Driving Permit (ADP) or is not authorized. This requirement is critical for maintaining safety and security in the airside environment, which includes areas that are directly associated with airport operations such as runways, taxiways, and areas where aircraft are parked or serviced.

A valid ADP ensures that the driver has received the necessary training and understands the rules and regulations governing airside operations. The authorization process also helps ensure that only qualified personnel operate vehicles in potentially hazardous areas, reducing the risk of accidents and incidents that could compromise airport safety.

While safety courses, vehicle markings, and familiarity with the airside layout are important factors, the most significant requirement for vehicle operation in airside areas is having the appropriate permit and authorization, as it directly validates that the driver is equipped with the essential knowledge and skills to navigate the complex environment safely.