Probably time for you to educate an unknowledgeable here, but isn't it something to do with flow control?
No, the AIP chapter that I mentioned is about flight plan filing and this rule is apparently applied to all flights, even if they didn't receive a slot.
I can understand that you have to wait with starting up until EOBT-15, but I can't understand why you then have to wait until your EOBT to takeoff. (I don't blame the ATCO. He's just following the rule as per spanish AIP)
So here are the questions again?
1. Do other countries have the same rule? (YOUR country?)
2. Can someone tell me if there is an ICAO/JAA guideline about as from which time a non restricted flight can startup, taxi and take off?
Regards,
Sabenaboy