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What does clearance void time indicate?

  1. The specific time a clearance is issued

  2. The time at which your clearance is void

  3. The time available to notify ATC for departure

  4. The time at which takeoff must occur

The correct answer is: The time at which your clearance is void

Clearance void time is specifically the moment at which your ATC clearance becomes invalid. This time is provided by air traffic control to ensure they maintain an orderly flow of traffic and can manage aircraft movements effectively. If you have not departed by the clearance void time, you will need to contact ATC again for a new clearance. This concept is crucial for pilots, as it emphasizes the importance of clear communication and adherence to timelines when operating in controlled airspace. Understanding clearance void time can help prevent potential misunderstandings or uncoordinated departures that could impact air traffic safety.