Who is responsible for an ALTRV mission from the time the aircraft reaches cruising altitude until descent?

The correct answer identifies the CARF, or the Combat Airspace Coordination Element, as responsible for overseeing an ALTRV (Alternative Route) mission from the time the aircraft reaches cruising altitude until it begins its descent. The CARF plays a crucial role in the management and coordination of airspace during these missions, ensuring that the aircraft maintains its designated route and adheres to any necessary operational guidelines.

This responsibility includes monitoring the flight's progress, managing airspace usage, and coordinating with other elements involved in the operation. The CARF’s role is vital in the context of military operations where airspace can be shared with various other missions, requiring careful coordination to avoid conflicts and ensure mission success.

In this scenario, ATC Facilities typically manage civilian air traffic but may not specifically oversee military operations. ARTCCs (Air Route Traffic Control Centers) are also involved in air traffic control but serve a broader role that does not focus solely on military missions. The Cell Leader, while having leadership responsibilities within the mission, does not specifically have the overarching responsibility for the mission as the CARF does once the aircraft is at cruising altitude.