What does the term 'clearance limit' mean:
Domanda 2, IFR Communications - ATPL - Airline Transport Pilot license
| The point to which an aircraft is granted an air traffic control clearance |
| The time after which an air traffic control clearance will be automatically cancelled if the flight has not been commenced |
| The time at which an aircraft is given an air traffic control clearance |
| The time of expiry of an air traffic control clearance |
