This guide is for general information only and is not legal advice. Laws change — verify current rules with your state DOT or a licensed attorney before relying on this for any legal matter. Read full disclaimer.
The rule
In Hawaii, the standard DUI statute applies to bicyclists. HRS § 291E-61 makes it unlawful to operate or assume actual physical control of a 'vehicle' while under the influence, and HRS § 291C-1 defines vehicle to include bicycles. A bicycle DUI carries the same statutory penalty range as an auto DUI — fines from $250 to $1,000 on a first offense, possible jail time, and a one-year driver-licence revocation if the rider holds a Hawaii licence. See HRS § 291E-61 (Operating a vehicle under the influence of an intoxicant).
Riding a bicycle while impaired is a real legal exposure in Hawaii. If you've been drinking, the safer move is to walk your bike, take transit, or call a ride.