Vehicle registration and licensing requirements vary by state, but typically a dune buggy has to comply with the safety and emissions requirements of the jurisdiction in which it has a license. Department of Transportation-approved safety equipment usually includes seat belts, windshield and wipers, mandatory lighting, brakes, and a speedometer.
Lighting requirements typically include headlights, taillights, brake lights and turn signals. Installed seat belts must meet DOT requirements for a shoulder strap or a five-point harness. Emission requirements depend on the engine that the manufacturer originally linked to the vehicle. Always consult the Department of Motor Vehicle inspection manual in the appropriate jurisdiction for exact requirements.