Haw. Rev. Stat. § 286-81
(a) No person shall operate a motorcycle or motor scooter, on any highway in the State unless the person and any passenger the person carries on the motorcycle or motor scooter wears:
(2) Any other protective devices, other than a safety helmet, required by rules adopted by the director.
For the purpose of meeting the requirements of this subsection, a required device shall meet the specifications and requirements established by rules adopted by the director.
(c) In addition to the requirements of subsection (b), no person shall lease or rent a motorcycle or motor scooter to another person unless the person furnishes:
(2) Any other protective devices required by the rules adopted by the director for the use of the person or persons intending to operate or ride as a passenger on the motorcycle or motor scooter; provided that any person to whom a motorcycle or motor scooter is leased or rented may furnish for the person's own use the protective devices required by this part.
For the purposes of meeting the requirements of this subsection, a required device shall meet the specifications and requirements established by rules adopted by the director.
(f) A safety helmet shall not be required for any person who operates or rides as a passenger on a motorcycle or motor scooter; provided that the motorcycle or motor scooter:
(4) Has a seat belt assembly or a child restraint system for the driver and passenger;
and the operator and passenger uses the seat belt or child restraint system pursuant to sections 291-11.5 and 291-11.6.
[L 1967, c 214, pt of §2; HRS §286-81; am L 1968, c 48, §2(d); am L 1977, c 183, §1; am L Sp 1977 1st, c 20, §12; gen ch 1985; am L 1994, c 120, §2; am L 2021, c 130, §2 and c 214, §5; am L 2025, c 222, §1]
Additional prohibitions regarding minors, see §291-11.
Rulemaking, see chapter 91.