In Uncontrolled Airspace, who provides separation?

• A. ATC
• B. Pilots
• C. Ground control
• D. Radar controllers

Answer: (B)

In uncontrolled airspace, there is no active separation service provided by air traffic control. The responsibility for keeping aircraft safely separated rests with the pilots themselves. They must use see-and-avoid to detect other traffic and adjust their flight path, speed, or altitude as needed to maintain safe separation, all in accordance with the applicable rules of the air. If there is an advisory or common frequency available (like a CTAF), pilots may coordinate with others, but the actual separation is the pilots’ duty, not a controller’s.

ATC, ground control, or radar controllers provide separation only in controlled airspace. Since this scenario describes uncontrolled airspace, those services aren’t the source of separation.