I've never understood the convoluted logic of one country having fifty different and separate vehicle registrations. Same goes for driver's license. Some states require you to obtain vehicle registration within ten days of arrival from another state. I was once arrested for a stolen vehicle (my own) because the state I was in, Rhode Island, did not honor my home state's, Minnesota, registration. I was in Rhode Island serving my country in the U.S. Navy. What is wrong with a United States of America vehicle registration and driver's license?