What distinguishes non-movement areas from movement areas at an airport?

Non-movement areas at an airport are distinguished by the fact that they do not require air traffic control services. This means that aircraft in these areas can operate under the authority of their pilots without needing clearance from air traffic control. This designation is crucial for ensuring safety and efficiency within the airport environment, particularly in areas where aircraft are parked or being serviced, such as taxiways, ramp areas, and hangars.

In contrast, movement areas involve runways and taxiways where air traffic control is necessary to manage the safe and orderly movement of aircraft. The clarity of this distinction helps in maintaining controlled operations, as movement areas are often subject to specific regulations and oversight from air traffic personnel.

The other choices incorrectly imply that non-movement areas are primarily about air traffic control designation, limitations based on runway presence, or confinement to parking zones, none of which capture the essential characteristic of non-movement areas being free from air traffic control services.