Who appoints personnel authorized to operate free-range vehicles?

The correct choice is based on the responsibility structure within airport operations. The Director of Airside Operations is typically the individual who has the authority to set policies and procedures related to the airside activities at an airport, including the authorization of personnel to operate free-range vehicles. This authority ensures that there is a properly trained and qualified team to uphold safety and operational standards in a complex airport environment.

This role includes not only the appointment of personnel but also oversight of their training and adherence to necessary regulations and protocols. The Director of Airside Operations must ensure that anyone operating vehicles in the airside environment understands the operational challenges and safety considerations specific to that area, which is crucial for maintaining the safety and efficiency of airport operations.

In contrast, other choices like airport security, aircraft manufacturers, and regulatory agencies do not typically have the direct authority to appoint personnel for specific operational roles within the airport setting. Airport security is primarily focused on security protocols and checks, aircraft manufacturers are concerned with the design and function of aircraft rather than operational training at the airport, and regulatory agencies provide guidelines and regulations but are not involved in the direct appointment of personnel for on-the-ground operations.