Haw. Code R. § 19-124-1
The operation of motorcycles and motor scooters has been found to result in a high incidence of disabling personal injuries and deaths. The effects of these injuries and deaths extend beyond the person injured or killed and the person's family to generally affect the health and welfare of the people of the State. These disabling personal injuries and deaths have an economic impact on the people of the State to the extent that they may result in a requirement for the furnishing of medical rehabilitative or welfare aid or assistance. The prevention or reduction in the severity of injuries resulting from the most common types of motorcycle accidents by the use of protective helmets and goggles, safety glasses, face shields, or other eye and face protection devices is deemed to be in the public interest.
Haw. Code R. § 19-124-1