When line up clearance and take-off clearance cannot be issued at the same time, ATC will expect and has planned on seeing movement within 10 seconds of take-off clearance being issued. Pilots unable to comply with this requirement, shall notify ATC as early as possible before reaching the holding position.
Note 1.- The effect of this procedure is to introduce a uniform clearance limit for application in cases where the use of tactical control methods by air traffic control makes it impracticable to include a time limit or a geographical limit in each climb clearance.
Note 2.- The level specified in the current flight plan means the level contained in the en route air traffic control clearance acknowledged by the pilot.
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