What action is taken to transfer radar identification of an aircraft between controllers?

Transferring radar identification of an aircraft between controllers is accomplished through a process referred to as a handoff. This procedure ensures that one controller formally transfers the responsibility for a specific aircraft to another controller while maintaining the continuous tracking and safety of the aircraft.

During a handoff, the initiating controller provides the receiving controller with vital information, including the aircraft's current altitude, heading, and any pertinent flight information. This transition is crucial for maintaining situational awareness and allows for a seamless change in control, ensuring that the aircraft remains under radar surveillance without gaps.

The concept of a point out, while related to communication between controllers, refers to notifying another controller about an aircraft’s presence without fully transferring control. A track change involves alterations in the aircraft's radar data or track designation, which is different from the identification handoff process. Finally, a route clearance is a directive regarding the path an aircraft should take but does not involve radar identification transfer. Therefore, the handoff is the definitive action taken to establish continued radar identification among controllers.