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 Massachusetts, bicycles are legally considered vehicles and must follow the same traffic laws as motor vehicles, including obeying traffic signals and signs. Cyclists must use bike lanes where available and ride in the same direction as traffic. The state requires anyone 16 years old or younger to wear a helmet while riding a bicycle. Motor scooters and mopeds must be registered with the RMV, and operators must have a valid driver's license or learner's permit. Helmets are mandatory for all moped riders. Electric scooters are subject to local regulations, and some cities may have pilot programs in place. Skateboards are not specifically addressed at the state level, but local ordinances may regulate their use on public roads and 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 as motor vehicles. It's important to check with local municipalities for any additional regulations that may apply.