To be considered "Authorized," what must personnel have?

To be deemed "Authorized," personnel must possess a written contract or permit from the relevant aviation authority, which in this case is the Chicago Department of Aviation. This requirement ensures that individuals have been granted permission to perform specific duties related to airport operations. Such authorization is crucial for maintaining safety and security within the airport environment, as it helps to regulate access to sensitive areas and ensures that all personnel meet the necessary standards set by aviation authorities.

Having a valid parking pass, a recommendation from an airport employee, or a specific amount of flight experience does not guarantee authorization to operate in secure or restricted areas of the airport. These factors may be helpful in certain contexts but do not fulfill the legal or regulatory obligations required for authorized personnel.