California helmet rules depend on the device and setting, but CHP guidance explains that riders under 18 must wear a properly fitted and fastened bicycle helmet when riding an electric bicycle on a public roadway or bikeway. CHP's scooter guidance also identifies helmet requirements for riders under 18. Families should also check school and local city rules.

California helmet rules depend on the device and setting, but CHP guidance explains that riders under 18 must wear a properly fitted and fastened bicycle helmet when riding an electric bicycle on a public roadway or bikeway. CHP’s scooter guidance also identifies helmet requirements for riders under 18. Families should also check school and local city rules.