AIM 5-2-1

Certain airports have established pre‐taxi clearance programs whereby pilots of departing instrument flight rules (IFR) aircraft may elect to receive their IFR clearances before they start taxiing for takeoff. The following provisions are included in such procedures: Pilot participation is not mandatory.

Participating pilots call clearance delivery or ground control not more than 10 minutes before proposed taxi time.

IFR clearance (or delay information, if clearance cannot be obtained) is issued at the time of this initial call‐up.

When the IFR clearance is received on clearance delivery frequency, pilots call ground control when ready to taxi.

Normally, pilots need not inform ground control that they have received IFR clearance on clearance delivery frequency. Certain locations may, however, require that the pilot inform ground control of a portion of the routing or that the IFR clearance has been received.

If a pilot cannot establish contact on clearance delivery frequency or has not received an IFR clearance before ready to taxi, the pilot should contact ground control and inform the controller accordingly.

Locations where these procedures are in effect are indicated in the Chart Supplement.