California Vehicle Code Section 21235 sets out ten things a motorized scooter rider cannot do on public roads, covering licensing, where you ride, speed, helmets, passengers, equipment, and how you park. Each violation is an infraction. The base fine is $25, but court-added penalties typically push the real cost of a first offense to around $192.
Who the Statute Covers
Section 21235 applies to motorized scooters as defined in Vehicle Code Section 407.5: a two-wheeled device with handlebars, electric-powered, with either a floorboard to stand on or a seat with footrests. Motorcycles, motor-driven cycles, and mopeds are excluded and follow their own rules. If your ride fits the 407.5 definition, every rule below applies to you statewide.
You Need a Driver’s License
Subdivision (d) requires a valid driver’s license or instruction permit to operate a motorized scooter. A standard Class C license is enough. There is no motorcycle endorsement requirement, and the rule applies to riders of every age. A learner’s permit satisfies the statute, though you remain bound by whatever supervision conditions your permit carries.
Where You Can Ride
The location rules are where most riders get into trouble, and they come in three layers.
Sidewalks are off-limits under subdivision (g). The only exception is briefly crossing a sidewalk to enter or leave adjacent property, such as rolling from a driveway to the street.
On the roadway, you cannot ride on any road with a posted speed limit above 25 miles per hour unless you are in a Class II bikeway (a striped on-street bike lane) or a Class IV bikeway (a physically separated cycle track).
A city or county can pass an ordinance opening roads with limits up to 35 miles per hour to motorized scooters, even outside a designated bikeway. Whether your area has done so is a question of local law, so check with your city’s transportation department before relying on it.
The 15 MPH Scooter Speed Cap
Subdivision (b) ties into Vehicle Code Section 22411, which caps the scooter’s own speed at 15 miles per hour on every road and bikeway in the state. The road’s posted limit for cars does not matter. If your scooter can go faster, you are responsible for holding it at or below 15.
Helmets for Riders Under 18
Subdivision (c) requires any rider under 18 to wear a properly fitted bicycle helmet meeting the standards of the American Society for Testing and Materials (ASTM) or the U.S. Consumer Product Safety Commission (CPSC), as cross-referenced from Section 21212. Adults are not required by state law to wear a helmet on a motorized scooter.
A first helmet violation for a minor can be dismissed if the rider or parent appears in court, affirms under oath that it is a first offense, and shows proof that the minor now owns a qualifying helmet and has completed a bicycle safety course. If the case is not dismissed, the maximum fine is $25, and a parent or guardian is jointly liable for payment.
No Passengers
Subdivision (e) prohibits carrying any passenger. A motorized scooter is a one-person vehicle under the statute, no exceptions.
Equipment and Handling Rules
Several of the ten prohibitions deal with how the scooter is built and how you handle it:
- Subdivision (a) requires a brake capable of making a braked wheel skid on dry, level pavement. A worn or disconnected brake puts you in violation before you move.
- Subdivision (h) prohibits handlebars raised so high that you must lift your hands above shoulder level to grip them.
- Subdivision (f) says you cannot carry any package or bundle that prevents you from keeping at least one hand on the handlebars. A backpack is fine. A large box held in both arms is not.
- Subdivision (j) makes it illegal to attach yourself or the scooter to any other vehicle on the roadway. Grabbing the side of a moving car is both a citation and a serious injury waiting to happen.
Parking Without Blocking Pedestrians
Subdivision (i) prohibits leaving a motorized scooter lying on its side on any sidewalk, and prohibits parking it in any position that does not leave an adequate path for pedestrian traffic. In practice, stand the scooter upright and keep it clear of curb ramps, doorways, and the main walking line of the sidewalk. Local authorities can impound scooters that violate these rules, and getting yours back usually means paying an administrative fee that varies by city.
What a Violation Actually Costs
Violations of Section 21235 are infractions. The base fine is $25, but California adds a stack of state and county penalty assessments on top of every traffic fine. Under the state’s Uniform Bail and Penalty Schedule, the total for a first-offense motorized scooter infraction comes out to roughly $192: the $25 base fine, about $92 in state penalty assessments, and a $75 court operations surcharge. Some counties tack on an emergency medical services penalty that nudges the total higher.
None of that includes traffic school fees, impound costs if your scooter is towed, or any local administrative penalty your city imposes on top of state fines.
Related Rules Officers Often Cite Alongside 21235
Two statutes outside Section 21235 come up often enough that riders confuse them with it.
Nighttime lighting is governed by Vehicle Code Section 21223, not 21235. After dark, a motorized scooter must carry a white front lamp visible from 300 feet, a red rear reflector visible from 500 feet, and white or yellow side reflectors visible from 200 feet front and rear. The front lamp requirement can be satisfied by a white lamp worn on the rider’s body, and the rear reflector requirement by reflective material worn on the body. A lighting violation is a separate infraction, but officers frequently write it alongside a 21235 citation.
Riding under the influence falls under Vehicle Code Section 21221.5, which makes it unlawful to operate a motorized scooter on any highway while under the influence of alcohol, drugs, or both. If arrested, you may request a chemical test of your blood or breath. A conviction carries a maximum $250 fine. The penalty is lighter than a standard DUI under Section 23152, and it does not automatically trigger the license suspension a car DUI does, but it is a criminal conviction rather than a traffic infraction and will show up on a background check.