When is position information not necessary to provide?

When position information is not necessary to provide, the context of position correlation is essential. Position correlation refers to the ability to confirm an aircraft's location via other means, such as flight plans or previous radar data. In such cases, if the aircraft has been positively identified and its flight path is known from previous data, continuous updates on its position may not be necessary.

This allows for more efficient communication and allows controllers to focus on other critical information rather than reiterating the continual position updates of an aircraft that is already clearly identified and tracked through correlation methods. In contrast, situations such as making a turn or operating in non-RADAR airspace typically require ongoing position updates to ensure safety and coordination. Likewise, during cruise altitude, while certain position information might still be relevant, particularly for traffic avoidance, pinpointing exact locations becomes less critical if the flight path is stable and in line with expected routes.