Which of the following is NOT listed as an airport user category?

• A. Airport Tenants
• B. Aircraft operators
• C. Contractors
• D. Passengers

Answer: (D)

Understanding airport user categories is about who has defined access rights within the facility for security planning. Airport tenants are the organizations that lease space and have ongoing access rights; aircraft operators (airlines) require access to airside and operational facilities; contractors are service providers who need temporary access for maintenance and projects. Passengers exist at the airport, but they are treated as general public rather than a defined security-access category in this framework. Their access to restricted areas is controlled through screening and boarding procedures, not as a standing user category in the security policy. Therefore, passengers are not listed as an airport user category in this context.