Order 7110.65P, Air Traffic Control, with changes

2/19/047110.65Pe. Between aircraft, when one aircraft is usingDME/LTD and the other is not− 30 miles if both thefollowing conditions are met:(See FIG 6−4−17 and FIG 6−4−18.)FIG 6−4−19Minima for Opposite Courses SeparationFIG 6−4−17Minima for Same Course SeparationFIG 6−4−18Minima for Crossing Courses SeparationNOTE−RNAV route segments that have been expanded in theproximity to reference facilities for slant-range effect arenot to be considered “expanded” for purposes of applyingseparation criteria in this paragraph.a. Both aircraft have reported passing NAVAIDs,DME fixes, or waypoints indicating they have passedeach other. (See FIG 6−4−20.)FIG 6−4−20Minima for Opposite Courses Separation1. The aircraft using DME/LTD derives distanceinformation by reference to the same NAVAIDor waypoint over which the aircraft not usingDME/LTD has reported.2. The aircraft not using DME/LTD is within15 minutes of the NAVAID.6−4−3. MINIMA ON OPPOSITE COURSESSeparate aircraft traveling opposite courses byassigning different altitudes consistent with theapproved vertical separation from 10 minutes before,until 10 minutes after they are estimated to pass.Vertical separation may be discontinued after one ofthe following conditions is met: (See FIG 6−4−19.)NOTE−It is not intended to limit application of this procedure onlyto aircraft operating in opposite directions along the sameairway or radial. This procedure may also be applied toaircraft established on diverging airways or radials of thesame NAVAID.b. Both aircraft have reported passing the sameintersection/waypoint and they are at least 3 minutesapart.c. Two RNAV aircraft have reported passing thesame position and are at least 8 miles apart ifoperating along a route that is 8 miles or less in width;or 18 miles apart if operating along an expandedroute; except that 30 miles shall be applied ifoperating along that portion of any route segmentdefined by a navigation station requiring extendedusable distance limitations beyond 130 miles.Longitudinal Separation6−4−5