1324. Air traffic control clearance.

Air traffic control clearances1 are based solely on the requirements for providing air traffic control service2. An air traffic control clearance must be obtained prior to operating a controlled flight3, or a portion of a flight as a controlled flight and is requested through the submission of a flight plan4 to an air traffic control unit5. The pilot in command6 must inform air traffic control is an air traffic control clearance is not satisfactory, in which case air traffic control will issue an amended clearance, if practicable7.

If, prior to departure, it is anticipated that, depending on fuel endurance and