T100 bus

The speed limit for a T100 bus on autowegen and motorways is 100 kilometers per hour. The name T100 says it all.
If a bus is not a T100 bus, then the speed limit for it on autowegen and motorways is 80 kilometers per hour.

A T100 bus has no standing room, and seat belts are required for all seats.

The speed limit for a T100 bus with a trailer on an autoweg or motorway is 90 kilometers per hour.

Article 1 of the Road Traffic Regulations (RVV):
T100 bus: a bus for which a note on the vehicle registration certificate or vehicle register shows that it is equipped in such a way that it qualifies for a speed limit of 100 kilometers per hour.