Air Traffic Control Clearance An authorization issued by an ATC unit for an aircraft to proceed within controlled airspace in accordance with the conditions specified by that unit. Discover more from Canadian Flight Trainers Subscribe to get the latest posts sent to your email. Type your email… Subscribe Related Articles: Glossary: Clearance LimitAlternative Meanings: Air Traffic Control ClearanceAuthorization by an air traffic control unit for an aircraft to proceed within controlled airspace under specified conditions.
