What must a driver do before operating a vehicle in a critical area during an RVOP?

Obtaining permission from Air Traffic Control (ATC) is crucial for operating a vehicle in a critical area, as these areas are often busy and require coordination to ensure safety. ATC monitors aircraft movements and provides guidance to ground vehicles to prevent any interference with aircraft operations. As a driver in such areas, it is essential to follow established protocols, which include seeking clearance from ATC before proceeding. This ensures that all vehicle movements are properly coordinated and that there are no conflicts with aircraft, contributing to the overall safety and efficiency of operations at the airport.

While other options may relate to general vehicle operation or safety, they do not have the same level of importance in the context of critical airside operations, where the priority is to ensure compliance with ATC instructions.