5-5-9

Separation From Obstructions

JO 7110.65BB, Change 3, effective July 9, 2026 · Official text on faa.gov

TERMINAL. Separate aircraft from prominent obstructions depicted on the radar display by the following minima:
1. When less than 40 miles from the antenna- 3 miles.
2. When 40 miles or more from the antenna- 5 miles.
3. For single sensor MSSR, when less than 60 miles from the antenna – 3 miles.
4. FUSION:
  1. Fusion target symbol – 3 miles.
  2. When ISR is displayed – 5 miles.
    Note
    
    When operating in FUSION, distances from the antenna listed in paragraph 5-5-9, a 1 through a 3, do not apply.
5. STARS Multi-Sensor Mode – 5 miles.
TERMINAL. Vertical separation of aircraft above a prominent obstruction depicted on the radar display and contained within a buffer area may be discontinued after the aircraft has passed the obstruction.
EAS. Apply the radar separation minima specified in paragraph 5-5-4, Minima.