Season	Events	Description	From	Until
S18	SHL DISTRIBUTION DEADLINE	Deadline for the Distribution of historic slots for Summer 2018 by coordinators	2017/09/11	2017/09/11
S18	AGREED HISTORIC DEADLINE	Agreed historic slot deadline for Summer 2018	2017/09/28	2017/09/28
S18	SLOT SUBMISSION DEADLINE	Deadline for Submission of initial slot requests for coordinated airports and schedule Information for facilitated airports	2017/10/05	2017/10/05
S18	SAL DISTRIBUTION DEADLINE	Deadline for the SAL distribution by coordinators and schedule facilitators for Summer 2018	2017/10/26	2017/10/26
S18	IATA SLOT HANDBACK DEADLINE	IATA Slot handback deadline for Summer 2018	2018/01/15	2018/01/15
S18	HISTORICS BASELINE DATE	Reference date for the use it or lose it calculation for Summer 2018	2018/01/31	2018/01/31