What does APREQ stand for in air traffic procedures?

In the context of air traffic procedures, APREQ stands for Approval Required. This term is used to indicate that a pilot or air traffic controller needs explicit authorization before a certain action can be taken, such as entering controlled airspace or performing specific maneuvers. It ensures that all parties are aware of and agree to the operational intentions, thereby maintaining safety and efficiency in air traffic management.

Understanding this acronym is crucial for both pilots and air traffic controllers, as it guides their communication and decision-making processes. By knowing that a request requires approval, controllers can ensure that the traffic is managed safely and that there are no conflicts with other aircraft or navigational restrictions.