Semantics Dan! I'll agree to disagree.
Rules for U.S. Commercial Drivers Licenses are administered by the Federal Motor Carrier Safety Administration (FMCSA). Although this federal administration sets minimum rules that apply to each state, but states and provinces have the right to set more strict rules. RV's used strictly for recreational and other non‐commercial functions do not meet the FMCSA definition of a CMV. This does not mean that there are not more strict rules, and even special drivers licenses for operators of RVs. Be sure to thoroughly understand the requirements of each state you plan on visiting. In some circumstances you will need to understand the different classifications for motor vehicles, which may impact what type of special license you may need. These classifications are based on the weight and length of your vehicle. Larger and longer vehicles in some cases require that operators have an appropriate class license based on the class of the vehicle.
Many states have special requirements if you drive a vehicle with over 26,000 gvwr. If you live in one of those states and drive one and don't have a class A you could get into a lot of trouble. If you have an accident and you do not have the proper license for the vehicle you are driving the insurance company can deny the claim. You are also in violation of the law and could either get fined, go to jail or get sued.