Definition
An IFR clearance delivered electronically to the flight deck or to a dispatcher before departure, in place of a verbal clearance read over the radio by a controller. The pilot reviews the clearance on a printed strip or cockpit display, confirms receipt, and may still be required to contact Clearance Delivery for any changes or verifications.
Plain English
Your departure instructions delivered as text before you start the engines, instead of being read to you over the radio.
Context Anchor
Pilots encounter this before taxi at airports that use electronic clearance delivery or other approved pre-departure clearance procedures.
Derivation
Straightforward construction: 'pre-departure' meaning before leaving, and 'clearance' meaning the formal authorization from ATC to operate in controlled airspace under the stated routing and restrictions.
Why Pilots Care
Reduces radio congestion on busy frequencies and gives the crew time to review and load the clearance into the flight management system before taxi.
Intuition Check
Do not read “Pre Departure Clearance” as permission to take off. It is clearance information given before departure; takeoff clearance is a separate instruction from air traffic control.
Example Sentence 1
After loading the flight plan, the captain pulled the PDC off the printer and briefed the route, altitude, and departure procedure with the first officer.
Example Sentence 2
After reviewing the pre departure clearance, the pilot confirmed the assigned departure procedure matched the filed flight plan.