In the context of visual separation, which term describes the separation that remains valid after applying visual separation?

• A. Other approved separation
• B. Radar separation
• C. Vertical separation
• D. Distance separation

Answer: (A)

Visual separation is when an air traffic controller uses sight and position checks to keep aircraft apart without relying on radar or altitude-based rules. Once you’ve applied that visual method, the separation that remains in effect isn’t tied to a specific radar or vertical minimum. Instead, it’s categorized as other approved separation—a broad label for separations established under ATC-approved procedures that aren’t strictly radar-based, vertical, or standard distance minima. This reflects that the ongoing separation is sustained by procedures and coordination (often including pilot reports and time/distance checks) rather than by a single instrument-based metric.