A lot of states are clamping down on licensing requirements. 3 or 4 years ago, possibly longer, Florida notified all NHRA Gatornationals participants that the state police would be conducting random vehicle and license inspections. The state had had enough of "sportsman" racers driving on the highways with Toterhomes (an RV based on an OTR chassis) pulling extremely large trailers. These vehicles were allowed to be registered as private vehicles. This allowed them to skip the weigh stations and all of these guys traveled heavy. These over weight vehicles were hell on the highways and Florida had had enough. They were nice enough to warn the operators of these "legal" vehicles that the state was going to start enforcing their laws. Other states are not being this nice. Just wait until Iowa starts following the Kansas tax model and see how tough they will enforce their licensing laws.
Randy