JO 7110.65 6-6-1

Assign an altitude to an aircraft after the aircraft previously at that altitude has reported leaving the altitude.

PHRASEOLOGY-

REPORT LEAVING/REACHING (altitude/flight level).

REPORT LEAVING ODD/EVEN ALTITUDES/FLIGHT LEVELS.

(If aircraft is known to be operating below the lowest useable flight level),

SAY ALTITUDE.

or

(If aircraft is known to be operating at or above the lowest useable flight level),

SAY FLIGHT LEVEL.

or

If aircraft's position relative to the lowest useable flight level is unknown),

SAY ALTITUDE OR FLIGHT LEVEL.

NOTE-

Consider known aircraft performance characteristics, pilot furnished and/or Mode C detected information which indicate that climb/descent will not be consistent with the rates recommended in the AIM.

REFERENCE-

FAA Order JO 7110.65, Para 2-1-3 , Procedural Preference.

FAA Order JO 7110.65, Para 4-5-1 , Vertical Separation Minima.

FAA Order JO 7110.65, Para 7-7-3 , Separation.

FAA Order JO 7110.65, Para 7-8-3 , Separation.

FAA Order JO 7110.65, Para 7-9-4 , Separation.