FAR/AIM: § 91.173 ATC clearance and flight plan required.

FAR/AIM > Federal Aviation Regulations > PART 91—GENERAL OPERATING AND FLIGHT RULES > Subpart B—Flight Rules > § 91.173 ATC clearance and flight plan required.

§ 91.173 ATC clearance and flight plan required.

No person may operate an aircraft in controlled airspace under IFR unless that person has—

(a) Filed an IFR flight plan; and

(b) Received an appropriate ATC clearance.