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Federal Aviation Regulations

Sec. 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.

NEXT: Sec. 91.175 - Takeoff and landing under IFR.
PREVIOUS: Sec. 91.171 - VOR equipment check for IFR operations.

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