pointSixtyFive

1-2-2

Course Definitions

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

The following definitions must be used in the application of the separation criteria in this order.

  1. SAME COURSES are courses whose protected airspaces are coincident, overlap, or intersect and whose angular difference is less than 45 degrees. (See FIG 1-2-1.)
  2. CROSSING COURSES are intersecting courses whose angular difference is 45 through 135 degrees inclusive. (See FIG 1-2-1.)
  3. OPPOSITE/RECIPROCAL COURSES are courses whose protected airspaces are coincident, overlap, or intersect and whose angular difference is greater than 135 degrees through 180 degrees inclusive. (See FIG 1-2-1.)