What is the function of a landing clearance?

A landing clearance specifically functions to authorize an aircraft to land on a designated runway. When air traffic control issues a landing clearance, it confirms that the airport is clear and safe for the aircraft to proceed with landing procedures. This is a crucial element in maintaining safety and order during the landing phase of flight, as it ensures that the aircraft has a clear path and that the air traffic controllers have accounted for other traffic and runway conditions.

Taxing procedures are addressed through a different type of clearance related to ground operations, while airspace entry permits pertain to the transition into controlled airspace and are not specific to landing. Facilitating flight clearance generally refers to broader permissions regarding a flight's path and intentions, not directly related to the specific act of landing. Thus, the purpose of a landing clearance is clearly distinct and essential for the safe execution of landings at airports.