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 Hawaii, bicycles, motor scooters, skateboards, and other similar modes of transportation are subject to specific regulations to ensure safety on public streets, highways, and roads. Bicyclists are generally required to use bike lanes where available and must adhere to the same traffic laws as motor vehicles, such as obeying traffic signals and signs. Helmets are not mandated by state law for bicycle riders over the age of 16, but some counties have their own regulations requiring helmets for younger riders. Motor scooters, depending on their power and speed capabilities, may require registration and the rider to have a valid driver's license. Helmets are required for motor scooter operators and passengers under 18 years of age. Skateboards are typically not allowed on roadways and may be restricted to sidewalks or designated areas, with municipal ordinances dictating specific rules. 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 as they can impose additional restrictions or requirements beyond state statutes.