Will my GVWR work for a Class A skills test?

Motorhome classification is a bit different... the ones built on heavy duty chassis are Class A motorhomes. Class B is actually the smallest class of motorhome.
There's plenty of exemptions to CDL requirements. Before I had a CDL, I was running a tractor-trailer for a sod farm under the farm truck exemption. So long as I was within 100 air miles of the turf farm, I didn't need a CDL. There's other stipulations, as well (e.g., direct employee of the farmer, used only for hauling that farm's products, etc).
Gotta love it, though... we meet all these requirements, go through all this training, etc., and we're constantly getting slapped with new regulation after new regulation. Meanwhile, Joe Geriatric, whose never driven anything bigger than his BMW his entire life, can just jump right behind the wheel of a motorhome built on a similar chassis to the trucks we drive, and nobody's going to bother him.
Logic.