Definicija: For the purposes of this Regulation "slot" shall mean the scheduled time of arrival or departure available or allocated to an aircraft movement on a specific date at an airport.

Definicija: In order to operate an air service to or from an airport, a carrier needs to be allocated a "slot" - i.e. a time when it may use the runway for landing or taking off. The right to allocate a slot lies ultimately with the owner/operator of the airport, as the owner/operator of the runway, subject to any applicable regulatory measures (...). Airport coordinators allocate slots according to principles laid down in the Scheduling Procedures Guide produced by IATA. These set out, among other things, guidelines according to which competing claims for a particular slot should be accorded priority. Of particular interest in the present context is the principle that "new entrant" carriers should be awarded a degree of priority in the allocation of newly-created, unused or surrendered slots.