Missouri law requires most motor vehicles to display license plates on the front and rear. Exceptions include motorcycles, commercial vehicles registered at 18,000 pounds or more, and historic year-of-manufacturer registrations. According to the Missouri Department of Revenue, historic motor vehicles include passenger cars, trucks, motorcycles, and RVs 25 years or older. To receive a historic motor vehicle plate, an owner must use their historic vehicle for educational and exhibition purposes and as a collector’s item, which means in parades and tours rather than everyday driving.