In the Netherlands (Europe) you need a truck driver's license if your motorhome comes over 3500 kg (7716.17 lbs) in terms of weight.
My school bus including decor comes up here. So what I am looking for to the official information that this schoolbus / GMC-van can have.
If the official mass is higher, I can legally increase the 'technical max mass' data and I don't need a truck driver's license. I know this is typically something for the Netherlands ... The land of the control .... sometimes ok but now it turns through but I have to do with it.
I received this internet link by gm
http://www.gmheritagecenter.com