Where must KGWO departures be released to?

The correct answer is that KGWO departures must be released to the destination airport. This procedure is crucial in air traffic management to ensure that aircraft are properly coordinated and guided throughout their flight. By releasing departures to the destination airport, air traffic control can maintain an organized flow of air traffic and ensure that all necessary clearances and routing are communicated to the pilots.

Releasing departures to the destination allows controllers to manage the aircraft's trajectory more efficiently and to integrate their movements with other traffic in the airspace system. It helps in optimizing the use of available airways and minimizes potential conflicts with other flights. This practice is essential for maintaining safety and efficiency in air traffic operations.

Other options may imply limiting the release of data to certain segments of the flight or specific waypoints, which could lead to confusion or inefficiencies in managing the overall airspace. For instance, only releasing to the nearest waypoint would not account for the full flight plan or potential changes in route, which could jeopardize safety and operational efficiency. Similarly, limiting the release to the originating airport or the transit zone fails to provide essential information for the entirety of the flight's route, making coordination unnecessarily difficult.