High speed below FL100

In general, a speed limit of 250 KIAS applies below FL100 in the Federal Republic of Germany. The exception is airspace Class C, where speeds higher than 250 KIAS are permitted below FL100. In airspace Class C, all aircraft (including VFR) are known to the controller. In airspace Class C, IFR separation values also apply to the separation of VFR traffic from IFR traffic.