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 Montana (MT), bicycles, motor scooters, skateboards, and similar modes of transportation are subject to specific regulations when operated on public streets, highways, and roads. Bicyclists are generally required to follow the same traffic laws as motor vehicle drivers, such as obeying traffic signals and signs. They must ride as close as practicable to the right-hand curb or edge of the roadway, except when passing, turning left, or avoiding hazards. Helmets are not mandated by state law for bicycle riders of any age, but local ordinances may require them, especially for minors. Motor scooters may need to be registered, and operators may require a valid driver's license, depending on the engine size and whether the scooter can exceed certain speeds. Skateboards are often regulated at the municipal level, with some cities prohibiting their use on sidewalks in business districts. Speed limits for these modes of transportation are typically 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 that apply to motor vehicle drivers. It's important for operators to check local ordinances for specific rules that may vary from one municipality to another within Montana.