In air traffic control, what does the term "Clearance" mean?

"Clearance" in air traffic control refers to authorization to proceed under specific conditions. This term encompasses various scenarios, allowing pilots to operate their aircraft within controlled airspace safely and efficiently. It signifies that the pilot has received explicit permission from air traffic control to take specific actions, such as departing, en route flight operations, or arriving at a destination, while adhering to any prescribed conditions or constraints.

The clarity of this term is essential since it underscores the importance of coordinated communication between air traffic controllers and pilots, ensuring that aircraft movement aligns with the overall air traffic management system to maintain safety and efficiency. The operational nature of clearance addresses the operational contexts in which various permissions are granted, ensuring compliance with regulations, traffic patterns, and safety procedures.

This definition shows that while clearance could relate to actions such as permission to land, taking off, or taxiing, it broadly covers any necessary authorization that may involve various conditions that need to be followed, illustrating its comprehensive nature in air traffic management.