Slot Monitoring

Historics are calculated at the end of each season in line with the IATA WASG and Circular No. 175 of 15 January 2026.

The 80/20 rule: a carrier retains its historic slots from one season to the next provided that it has used at least 80% of the slots allocated during the previous season.

The Moroccan Slots Coordinator publishes the validated historics at the start of each Initial Submission Window (SAL).

Slot monitoring is carried out by comparing allocated slot times with actual operating times communicated by the airport, in order to determine whether operations took place outside the planned slots. Observations from airport authorities, air traffic control and ground-handling agents are also taken into account. It is then determined whether actual operating times differ materially from allocated times, whether the deviations were intentional and/or repeated, and whether they adversely affected airport operations. When an off-slot flight is detected, dialogue is initiated to obtain clarification and/or make any necessary correction.