Season	Events	Description	From	Until
W17	SHL DISTRIBUTION DEADLINE	Deadline for the Distribution of historic slots for Winter 2017/2018 by coordinators	2017/04/11	2017/04/17
W17	AGREED HISTORIC DEADLINE	Agreed historic slot deadline for Winter 2017/2018	2017/05/04	2017/05/04
W17	SLOT SUBMISSION DEADLINE	Deadline for Submission of initial slot requests for coordinated airports and schedule Information for facilitated airports	2017/05/11	2017/05/11
W17	SAL DISTRIBUTION DEADLINE	Deadline for the SAL distribution by coordinators and schedule facilitators for Winter 2017	2017/06/01	2017/06/01
W17	IATA SLOT HANDBACK DEADLINE	IATA Slot handback deadline for Winter 2017/2018	2017/08/15	2017/08/15
W17	START OF USE IT OR LOSE IT CALCULATION	Reference date for the use it or lose it calculation for Winter 2017/2018	2017/08/31	2017/08/31