During manual data transfer, coordination with the receiving ARTCC must occur if the departure point is less than how many minutes flying time from the ARTCC boundary?

The correct answer is based on established procedures for ensuring safe and efficient traffic management during manual data transfers between Air Route Traffic Control Centers (ARTCCs). When an aircraft's departure point is less than 15 minutes flying time from the ARTCC boundary, coordination with the receiving ARTCC is critical.

This requirement stems from the need to maintain seamless communication and facilitate the timely transfer of control between adjoining centers. When an aircraft is close to the boundary, failure to coordinate can lead to gaps in information, miscommunication, and potential safety issues, as the aircraft may be approaching a transition point where its flight plan and altitude assignation need to be confirmed or adjusted.

Coordination allows for an exchange of essential information regarding the aircraft's status, route, altitude, and any potential conflicts with other air traffic. This is particularly vital for departures within a short distance from the boundary, as these aircraft will entering the control jurisdiction of another center shortly after takeoff, making timely communication imperative. The established 15-minute guideline ensures that air traffic controllers have sufficient time to prepare for the upcoming handoff and manage traffic effectively.