ROH §15-19.32
Mudguards required
Read the official text at honolulu.gov ↗This rule says you cannot drive a motor vehicle, trailer, or semi-trailer on a highway unless it has fenders, covers, or other parts that keep water or mud from spraying to the rear. The vehicle's own body can count if it blocks the spray well enough.
everyone
The ordinance, as written (Honolulu County) — Mudguards required
A copy, taken August 22, 2026. The version published by Honolulu is the one that governs, and it may have changed since. Check it before relying on anything here.
A person may not operate on any highway any motor vehicle, trailer, or semi-trailer, unless equipped with fenders, covers, or devices, including flaps or splash aprons, or unless the body of the vehicle or attachments thereto afford adequate protection to effectively minimize the spray or splash of water or mud to the rear of the vehicle.
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Published by the City and County of Honolulu through American Legal Publishing.
LawTrove is not legal advice. The summary above is a computer-generated restatement — the authoritative text is the official version linked above.