Hawaii E-Bikes and Scooters: What Parents and Riders Need

First, what Act 259 changed

Governor Josh Green signed House Bill 2021 on July 15, 2026, turning it into Act 259, and the bulk of it applied from that same day. Until then Hawaii simply leaned on the federal consumer product definition of a low-speed electric bike. Chapter 291C of the state's statutes now defines these machines itself.

Under the new definitions, an e-bike must have pedals that really work and a motor rated at 750 watts or under. The three classes break down like this. Class 1 helps only while you pedal and gives up at 20 mph. Class 2 adds a throttle, still capped at 20 mph. Class 3 is pedal-only help that continues to 28 mph and must carry a speedometer. Anything stronger than 750 watts and faster than 28 mph counts as a high-speed electric device, unless it is registered as a moped or a motor vehicle.

Tricks are now illegal on an e-bike. Keep every wheel on the ground, stay seated and facing the front, and forget wheelies, standing on the saddle or perching on the handlebars. HDOT and the counties can list further unsafe moves in their rules.

Before you buy for a child: the age rules

The amended HRS 291C-143.5 says a rider younger than 16 may not use a Class 2 or Class 3 e-bike without direct supervision. The law defines that as a parent, guardian or someone at least 18 who is there in person and close enough to see what the child is doing and take control.

Worked example: your 13 year old wants a throttle bike to ride around the neighborhood after school. A Class 2 bike would need an adult riding along or standing close by every time. Watching from the porch does not count. A Class 1 pedal assist bike avoids that rule, though the helmet and path rules still apply.

For Class 1 bikes, the amended section has no age floor at all. It replaced the older rule that kept everyone under 15 off every kind of low-speed e-bike.

Before every ride: helmets

The helmet law, HRS 291C-150, used to stop at age 16. Now anyone younger than 18 riding a bicycle on a street, a bikeway or other public property needs a properly fitted helmet with the strap done up. Hawaii law classes e-bikes as bicycles, so that covers e-bike riders and their passengers, including a child in a bike seat or a trailer.

A violation can cost up to $25, and when the rider is an unemancipated minor, the bill goes to the parent or guardian. Bike rental shops must make every renter under 18 wear one. Electric foot scooters and the other micro-mobility devices now share that same under-18 cutoff.

On the road: where to ride

Legally, an e-bike rider is a bicycle rider with all the same rights and duties. When slower than traffic, keep as close to the right edge as you sensibly can, use a bike lane where one is usable, and ride in single file on the road. Counties can sign particular bike lanes and paths as off limits to motorized bicycles.

The sidewalk rules are new for 2026. Under HRS 291C-145(g) all three classes may use a sidewalk, but no faster than 10 mph. Business districts are excluded, so is any sidewalk a county has closed by ordinance, and counties may tighten things further. Walkers always go first.

Bike lanes and paths are now closed to two groups. High-speed electric devices are banned from every public road, bike lane, path and sidewalk. Mopeds and electric motorcycles can use the road but not bike lanes or paths, and the old instruction for mopeds to ride in bike lanes has been repealed.

Paperwork: registration, license and insurance

Yes, Hawaii makes you register an e-bike. HRS 249-14, as amended, sets a $30 registration fee that you pay once, to the county director of finance. Riding without registration is not allowed on public streets, sidewalks or bike facilities, and police or finance staff can hold the bike for ten days until you redeem it with a $25 penalty.

You do not need a driver's license to ride a road-legal e-bike, because the law treats it as a bicycle and not a moped. Act 259 also spells out that nothing in chapter 291C makes you insure an e-bike that is road-legal, permitted and properly classed.

If the bike is really a moped or motorcycle

Hawaii defines a moped as a two or three wheeler with no clutch or gears, a top speed of 30 mph on its own power, and a motor no stronger than two horsepower, which is 1,492 watts. You can ride one on any class of driver's license or on a Class 1 moped license, from age 15 on. HRS 291C-195 requires a helmet under 18, and the moped is registered and plated.

Go faster than 28 mph and you are on an electric motorcycle, which Hawaii licenses, registers and insures as a motorcycle, Class 2 license and all. Act 259 also swapped the term motor scooter for motor-driven cycle everywhere in state law, and gave enforcement the power to impound devices that are not road-legal or do not conform.

Scooters, one-wheels and e-skateboards

Hawaii's electric foot scooter has two or three wheels, handlebars, a weight under 75 pounds and a top speed no higher than 15 mph. Act 259 created a second category, electric micro-mobility devices, which takes in one-wheels and electric skateboards weighing 75 pounds or less, and HRS 291C-139 now governs both.

Riders must be at least 15 to use either on a public road or other public property. Everyone under 18 wears a helmet, nobody carries a passenger, and nobody goes over 15 mph. Keep both hands available for steering, run lights after dark, and leave the scooter only in spots the county has set aside for parking or docking. A rental company has to give each customer a copy of the county's scooter rules.

What to watch for next

Counties get the final say on scooter and micro-mobility routes. HRS 291C-139 tells each one to decide where those devices may run, on sidewalks, bikeways and paths, and to set speed, safety and insurance rules, so long as nothing is looser than state law. On Oahu, read the Revised Ordinances of Honolulu and the city's transportation pages before you take a scooter onto a sidewalk.

One more piece of Act 259 is still to come. The labeling and point of sale rules start 120 days after the signing, which lands around November 12, 2026, unless HDOT adopts rules sooner. Anyone selling e-bikes into Hawaii, online sellers included, will have to state whether a model may be ridden on roads, sidewalks and bike lanes and spell out the registration, equipment, helmet and age requirements. Each violation can cost the seller up to $500.