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 Colorado, bicycles, motor scooters, skateboards, and similar modes of transportation are subject to specific laws and regulations. Bicyclists are generally required to follow the same traffic laws as motor vehicle drivers, such as obeying traffic signals and signs. They must ride in the same direction as traffic and are allowed to use both bike lanes and public roads. Helmets are not mandated by state law for bicyclists of any age, but some local ordinances may require them, especially for minors. Motor scooters must be registered, and operators must have a valid driver's license; helmets are required for riders and passengers under 18 years of age. Electric scooters are typically regulated by local ordinances, which may dictate where they can be ridden and whether helmets are required. Skateboards are often restricted from use on public roads and may be limited to sidewalks or designated areas, depending on local regulations. DUI laws apply to all these modes of transportation, and operating any of them under the influence of alcohol or drugs is illegal. It's important to check local ordinances for specific rules, as they can vary significantly between different cities and towns within Colorado.