Laws governing the operation of bicycles, motor scooters (electric or gas powered), skateboards, and other modes of transportation on public streets, highways, and roads vary from state to state, and among cities and towns (municipal ordinances).

Some of the important laws governing these alternative modes of transportation include proper roadways and lanes for operation; speed limits; required safety precautions (helmets, etc.); application of traffic laws; license requirements; and the application of laws regarding being under the influence of alcohol or drugs.

In South Carolina, bicycles, motor scooters, skateboards, and similar modes of transportation are subject to specific regulations when operated on public streets, highways, and roads. Bicyclists are required to adhere to the same traffic laws as motor vehicles, including obeying traffic signals and signs. They must ride as close to the right side of the roadway as practicable and use bike lanes where available. Helmets are not mandated by state law for bicycle riders, but local ordinances may require them, especially for children. Motor scooters must be registered, and operators must have a valid driver's license. Helmets are required for motor scooter riders under 21 years of age. Skateboards are typically regulated at the municipal level, with some cities prohibiting their use on certain roads or sidewalks. Speed limits for these modes of transportation are generally the same as for motor vehicles unless otherwise posted. Operating any of these modes of transportation under the influence of alcohol or drugs is illegal and subject to the same DUI laws applicable to motor vehicle drivers. It's important to check local ordinances as they can impose additional restrictions or requirements.