In Pennsylvania, a class B (non-commercial) license is required if a motor home is 26,001 pounds or more and towing less than 10,000 pounds. Remember, your motor home is not a commercial vehicle, it's privately owned. A class A (non-commercial) license is required when your towed is 10,000 pounds or more. An example of this would be if the towing vehicle is 11,000 pounds and the towed is 15,500 then the total combination is 26,500. Remember, these are all gross weights. Also, those pulling a trailer should be aware of this.