The law’s definition excludes this device by its shape
A
Jesse Garnier · September 12, 2026
The cards in full
What the law calls it
Contested — the sources disagree
The law’s definition excludes this device by its shape.
California has never written a vehicle class that fits an electric unicycle. Every class built for a small powered machine misses it on a physical feature, so it falls into the catch-all, “motor vehicle”, the one class the state has no way to register or licence it under.
Why PEVRA reads it this way
What the law says
Five named classes could reach a one-wheeled machine, and four miss it on a physical feature. An electrically motorized board (CVC § 313.5) needs “a floorboard designed to be stood upon when riding” and is capped, by its definition, at an electric propulsion system averaging less than 1,000 watts and 20 miles per hour; those numbers are the statute’s test of the machine, not an instruction to the rider. An electric personal assistive mobility device (§ 313, the Segway class) needs two wheels side by side. A motorized scooter (§ 407.5) needs handlebars and two wheels. An electric bicycle (§ 312.5) needs pedals.
The fifth is different. A motorcycle (§ 400) is “a motor vehicle having a seat or saddle for the use of the rider, designed to travel on not more than three wheels in contact with the ground”, and a wheel ridden with a seat satisfies that. Take that seriously rather than as a corner case: several current machines ship with a seat or a moulded seating surface (the P6 ships with a seat; the Lynx and the Blitz Pro have a seating surface), so § 400 is a door that stands open for a large share of the wheels on the road. PEVRA is not ready to call an electric unicycle a motorcycle, and no court or agency has; this row records the door and does not walk through it.
Miss the named classes and CVC § 415(a) catches whatever is left: “A “motor vehicle” is a vehicle that is self-propelled.” That is a leftover box, not a decision about this device, and it is the class the Department of Motor Vehicles has no form for. So the machine is not banned in California. It is undefined, and being undefined is what puts it in the one category it can never satisfy.
The two readings
On PEVRA’s reading the machine is a motor vehicle of no named class. On the other reading it is a motor-driven cycle: § 405 defines one as “any motorcycle with a motor that displaces less than 150 cubic centimeters”, and a seated wheel is a motorcycle under § 400. Displacement is a measure of a piston engine, which an electric motor does not have; PEVRA reads the section as not reaching an electric machine, and nobody has tested that. The difference matters, because Class M1 of the driver licence (§ 12804.9) reaches “A two-wheel motorcycle or a motor-driven cycle”, so on the second reading a licence class exists and on the first none does.
What PEVRA cannot tell you
Which reading a court would take. No California court or agency has construed any of these sections for a one-wheeled device. The Highway Patrol’s enforcement manual has a name for the machine — “Undefined Electric Vehicle” — and its list of vehicle type codes has no entry for one, so a stop is written up as “95: Miscellaneous Non-Motor Vehicle” or “96: Miscellaneous Motor Vehicle (Snowmobile, Golf Cart, Pocket Bike)”, opposite classifications of the same machine with nothing in the chapter to choose between them.
One piece of history is worth knowing. As introduced in 2015, the board class was an “electrically motorized skateboard” defined as “any four-wheeled device”; the Senate amendment of September 4, 2015 struck the wheel count and the word skateboard and left everything else. So the number of wheels is not a criterion of the class. PEVRA does not claim the Legislature did that to reach a one-wheeled machine, and the same introduced bill carried an exemption from registration and insurance that was struck before enactment.
Where PEVRA stands
PEVRA’s position is that the behaviour, not the machine, is what a law should regulate. A definition that turns on a wheel count or a floorboard is the kind of law that leaves a rider undefined by accident.
any wheeled device that has a floorboard designed to be stood upon when riding
The definition turns on: wheel count, handlebars, floorboard, motor power, speed capability. Limits: 1000 W max motor power · 20 mph max speed.
Roads
Contested — the sources disagree
The law’s definition excludes this device by its shape.
Two readings of California law give opposite answers, and no court has picked one. Plan around the stricter: a wheel that fails the state’s narrow “board” definition is a motor vehicle that cannot be registered, and an unregistered motor vehicle may not be driven on a public street.
Why PEVRA reads it this way
What the law says
“Highway” in the Vehicle Code is any publicly maintained way open to public vehicular travel, and CVC § 360 adds “Highway includes street.” So every rule here reaches the road outside your house.
For an electrically motorized board, CVC § 21294(a) confines riding to a highway “designated with a speed limit of 35 miles per hour or less”, unless the board stays entirely within a Class II or Class IV bikeway; § 21294(b) caps the rider at 15 miles per hour; § 21292 requires a fitted and fastened bicycle helmet. Read “designated”, not “posted”: a California speed limit can be set by statute with no sign, so a street with no sign is not thereby open.
For a motor vehicle, four sections in a row close the street. CVC § 415(a) makes any self-propelled vehicle a motor vehicle. § 360 makes the street a highway. § 4000(a)(1) forbids driving a motor vehicle upon a highway unless it is registered. And no registration category fits: the department’s own electric off-highway class needs “handlebars for steering, a straddle seat, two wheels, and no pedals”, and the nearest-looking class in the code, the motorized scooter of § 407.5, is “any two-wheeled device that has handlebars”. Both turn on the wheel count, which is the durable ground; some current wheels do carry a bar across the front meant to be held, so the absence of handlebars was never the safe half of the argument.
The two readings
Which set of rules applies turns on whether your wheel is an electrically motorized board: CVC § 313.5 defines one by a floorboard designed to be stood upon, an electric propulsion system averaging less than 1,000 watts, and a top speed of 20 miles per hour under power. Those numbers are the statute’s test of the machine, not an instruction to you. A wheel inside them is arguably a board with a lawful place on slow streets; a wheel outside them is, on PEVRA’s reading, a motor vehicle of no named class, off the street for want of a registration form.
What PEVRA cannot tell you
Whether a court would call an electric unicycle’s pedals a floorboard, and so read the board rules onto a small wheel at all. PEVRA has read the board article and the Highway Patrol’s enforcement manual and found no sentence deciding it. The Highway Patrol’s own bulletin says a vehicle that cannot be registered or issued an identification number cannot be legally operated on-highway or off-highway. Nobody in California decided, in a debate anyone can find, that a one-wheeled device should be off the street; PEVRA has read the 2015 bill file and found no such decision. It is off the street because every category was drawn around a shape it does not have.
Local
CVC § 21967 lets a city or county prohibit or restrict boards “on highways, sidewalks, or roadways” by ordinance or resolution. Check the local code before relying on any of this.
Where PEVRA stands
PEVRA’s position is that electric unicycles belong on all roads, bike paths and sidewalks, at a speed appropriate to and limited by the prevailing use of the space.
An electrically motorized board shall only operate upon a highway designated with a speed limit of 35 miles per hour or less, unless the electrically motorized board is operated entirely within a designated Class II or Class IV bikeway.
The definition turns on: wheel count, handlebars, floorboard, motor power, speed capability. Limits: 1000 W max motor power · 20 mph max speed.
On roads: 15 mph or under. CVC 21294(b): 15 mph for an electrically motorized board on a highway, and never faster than is reasonable and prudent for the conditions (21294(c)). This binds only under the board reading.
The device must be registered. CVC 4000(a)(1), through CVC 415(a) and 360: a motor vehicle may not be driven on a street unless registered, and no DMV category PEVRA has read fits a one-wheeled machine. Under the motor-vehicle reading this alone closes the road.
A helmet is required (the standards described in CVC § 21212). CVC 21292: a properly fitted and fastened bicycle helmet for an electrically motorized board on a highway. Board reading only; no helmet rule is written for a one-wheeled device as such.
Motorways and limited-access highways
Effectively prohibited — falls to “motor vehicle”
The law’s definition excludes this device by its shape.
No. Keep the wheel off the freeway; this is one place where both readings of California law give the same answer. Notice the reason, though: it is not a freeway rule. It is the registration rule, and the same sentence keeps the wheel off the street outside your house.
Why PEVRA reads it this way
What the law says
A freeway, under CVC § 332, is a highway whose abutting landowners have no right of access on to it; ramps and speed are not the test. Because it is a highway, the ordinary chain applies: CVC § 415(a) makes the machine a motor vehicle, § 360 and § 332 make the freeway a highway, and § 4000(a)(1) forbids driving a motor vehicle upon a highway unless it is registered — which, for a device no category fits, cannot be done.
One rule is genuinely about freeways and reaches the device on either reading. CVC § 21664 makes it unlawful for the driver of any vehicle to enter or exit a fully access-controlled freeway except at a designated on ramp or off ramp; § 670 makes the machine a vehicle and § 305 makes its rider a driver. It is an entry rule, not a presence rule: it forbids the embankment and the fence gap and says nothing about a rider who came up a ramp.
The two readings
On the board reading, CVC § 21294(a) permits a board only on a highway designated at 35 miles per hour or less, or entirely within a Class II or Class IV bikeway. PEVRA has verified no California freeway segment designated that low, and says that as an absence of evidence rather than an impossibility: § 22355 makes a freeway’s limit “that which is then and there displayed upon such sign”, and § 22354(a) lets Caltrans declare limits down to 15. So the board reading answers the freeway by arithmetic — a board may not be on a road it is not permitted to be on — and the motor-vehicle reading answers it by registration. Same result, different routes.
CVC § 21960 is the only section that names freeways and this family of devices together, and it is a power, not a ban: Caltrans and local authorities may prohibit or restrict freeway or expressway use by pedestrians, bicycles, a motor-driven cycle, a motorized bicycle, a motorized scooter, or an electrically motorized board, and § 21960(b) makes any such prohibition effective only once signs are erected on the road and its approaches. A board is on that list by name; a plain motor vehicle is not, because it is already barred by § 4000.
What PEVRA cannot tell you
The county expressway. CVC § 314 confines “expressway” to a portion of highway inside a county-established expressway system, of which Santa Clara County’s is the standard example. Where such a road carries a designated Class II bike lane, § 21294(a)’s own exception would let a board ride in the lane while the registration bar still keeps a motor vehicle off it — a genuine disagreement in outcome, not two routes to one answer. PEVRA has not verified which county expressway segments carry a designated lane, so this row answers the freeway, where the readings agree, and leaves the expressway lane open. A state route with grade separations is, for the Vehicle Code, simply a highway governed by the road row.
Where PEVRA stands
PEVRA supports every rider speed limit a jurisdiction sets, by facility. A freeway is closed to this device by the accident of registration, not by any rule anyone wrote about it, and the law should say which it means.
A person shall not drive, move, or leave standing upon a highway, or in an offstreet public parking facility, any motor vehicle, trailer, semitrailer, pole or pipe dolly, or logging dolly, unless it is registered and the appropriate fees have been paid under this code
The definition turns on: wheel count, handlebars, floorboard, motor power, speed capability. Limits: 1000 W max motor power · 20 mph max speed.
The device must be registered. CVC 4000(a)(1), through CVC 415(a), 360 and 332: a freeway is a highway, and an unregistered motor vehicle may not be driven on one. No DMV category PEVRA has read fits a one-wheeled machine, so this reading closes the freeway on its own.
On motorways and limited-access highways: 15 mph or under. CVC 21294(b): 15 mph for an electrically motorized board, on any highway. It binds only under the board reading, and on a freeway the number that decides is 21294(a)’s 35 mph designation, which PEVRA has verified no freeway segment carries.
Prohibited on motorways and limited-access highways where a sign says so. CVC 21960: Caltrans or a local authority may close a freeway or expressway to a board by order, effective only once signs are posted on the road and its approaches. A power, not a ban; where no sign stands, this section forbids nothing.
Prohibited on motorways and limited-access highways. Under the motor-vehicle reading a freeway is closed outright; for the board reading PEVRA has verified no California freeway segment designated at 35 mph or less. The county-expressway bike lane is the one unsettled case; see the analysis.
Bike lanes
Contested — the sources disagree
The law’s definition excludes this device by its shape.
Two readings of California law, and they point opposite ways. If your wheel is a motor vehicle, CVC § 21209 keeps it out of a bike lane except to park, turn or cross. If it is an electrically motorized board, § 21294(a) treats a Class II or Class IV bikeway as the one place a board may ride off a slow street.
Why PEVRA reads it this way
What the law says
A Class II bikeway is a bike lane: Streets and Highways Code § 890.4(b) defines it as a facility that provides “a restricted right-of-way designated for the exclusive or semiexclusive use of bicycles with through travel by motor vehicles or pedestrians prohibited”. A Class IV bikeway is a separated bikeway. A Class I path and a Class III route are not in § 21294(a) at all, which is why the shared-path row reads differently from this one. In the lane, a board is capped at 15 miles per hour by § 21294(b) and owes a bicycle helmet under § 21292.
The two readings
On the motor-vehicle reading, a wheel that fits no named class is a motor vehicle under CVC § 415(a), and § 21209(a) says “No person shall drive a motor vehicle in a bicycle lane established on a roadway pursuant to Section 21207 except as follows” — to park where parking is permitted, to enter or leave the roadway, or to prepare for a turn within 200 feet of an intersection. Riding along the lane is none of those.
On the electrically motorized board reading, § 21294(a) confines a board to “a highway designated with a speed limit of 35 miles per hour or less, unless the electrically motorized board is operated entirely within a designated Class II or Class IV bikeway”. The bikeway is the exception that lets a board leave the slow street; it is not written as a place a board must stay.
What PEVRA cannot tell you
Which reading a court would take. PEVRA has read both sections and the Highway Patrol’s enforcement manual, which describes a board and never a wheel, and found no California court or agency construing either section for a one-wheeled device.
Local
CVC § 21967 lets a city or county restrict boards on highways, sidewalks or roadways by ordinance; a bike lane is part of the roadway, so a local rule can close it to a board. Check the local code before relying on any of this.
Where PEVRA stands
PEVRA’s position is that electric unicycles belong on all roads, bike paths and sidewalks, at a speed appropriate to and limited by the prevailing use of the space. A bike lane is one place a wheel may lawfully be; PEVRA does not treat it as the place a wheel belongs.
shall only operate upon a highway designated with a speed limit of 35 miles per hour or less, unless the electrically motorized board is operated entirely within a designated Class II or Class IV bikeway
The definition turns on: wheel count, handlebars, floorboard, motor power, speed capability. Limits: 1000 W max motor power · 20 mph max speed.
In bike lanes: 15 mph or under. CVC 21294(b): 15 mph for an electrically motorized board in a bikeway, and no faster than is reasonable and prudent for the surface and traffic (21294(c)). Binds only if the device is a board.
A helmet is required (the standards described in CVC § 21212). CVC 21292: a fitted and fastened bicycle helmet for an electrically motorized board in a bikeway. Board reading only; PEVRA has read no rule written for a one-wheeled device that requires one here.
Shared paths
Contested — the sources disagree
The law’s definition excludes this device by its shape.
PEVRA has found no court decision. California’s board rule lists a slow road and a bike lane and says nothing about a paved path away from traffic. The Highway Patrol tells its officers a board may ride there; the words of the law do not say so. Check who owns the path, because the owner’s rules bind you either way.
Why PEVRA reads it this way
What the law says
A shared use path is a Class I bikeway: Streets and Highways Code § 890.4(a) describes “a completely separated right-of-way designated for the exclusive use of bicycles and pedestrians”. CVC § 21294(a) says an electrically motorized board “shall only operate” on a highway designated at 35 miles per hour or less, or entirely within a Class II or Class IV bikeway — and a Class I path is neither. Wherever a board is, § 21294(b) caps it at 15 miles per hour “upon a highway, bikeway, or any other public bicycle path, sidewalk, or trail” and § 21292 requires a bicycle helmet on the same list of places.
Under the motor-vehicle reading, CVC § 23127 makes it a misdemeanour to operate an unauthorized motor vehicle on a “hiking or horseback riding trail or bicycle path that is clearly marked” with no-motor-vehicle signs at its entrances, unless the path runs alongside a road. A signed path is a criminal matter on that reading, not a ticket.
The two readings
Read § 21294(a) as a closed list of places and a public bicycle path is out. Read it as a rule about which highways a board may use and it says nothing about a path either way. The second reading is hard to dismiss, because three duties — the helmet in § 21292 and the speed rules in § 21294(b) and (c) — are each written for “a highway, bikeway, or any other public bicycle path, sidewalk, or trail”, and a total ban everywhere but a slow road makes those words dead three times over.
The Highway Patrol has taken the permissive side in writing: its enforcement manual tells officers “An EMB may be operated on a highway, bikeway, or any other public bicycle path, sidewalk, or trail.” PEVRA neither adopts that nor calls it wrong. The manual is reproducing § 21292’s helmet list, which imposes a duty on those surfaces rather than granting access to them, and its pictured examples are a hoverboard and an electric skateboard, not a one-wheeled machine.
What PEVRA cannot tell you
Which reading a court would take. PEVRA has read the board article, the manual and the 2015 bill file and found no California court decision or Attorney General opinion choosing between them. On either reading, the agency that owns the path sets its own rules on top of the Vehicle Code — the Bay Bridge Trail, for one, publishes a 15 mph advisory limit and bars skateboards, scooters and skates.
Where PEVRA stands
PEVRA’s position is that electric unicycles belong on all roads, bike paths and sidewalks, at a speed appropriate to and limited by the prevailing use of the space.
shall only operate upon a highway designated with a speed limit of 35 miles per hour or less, unless the electrically motorized board is operated entirely within a designated Class II or Class IV bikeway
The definition turns on: wheel count, handlebars, floorboard, motor power, speed capability. Limits: 1000 W max motor power · 20 mph max speed.
On shared paths: 15 mph or under. CVC 21294(b): 15 mph for an electrically motorized board on a public bicycle path, and slower where the path, weather or foot traffic call for it (21294(c)). It binds only if the device is a board; the path’s owner may set a lower limit.
A helmet is required (the standards described in CVC § 21212). CVC 21292: a properly fitted and fastened bicycle helmet for an electrically motorized board on any public bicycle path. Board reading only. The same list of places carries the duty; it does not by itself grant access to them.
Sidewalks and footpaths
Contested — the sources disagree
The law’s definition excludes this device by its shape.
Assume no, and use the road. On the safer reading of California law your wheel is a motor vehicle, and a motor vehicle may cross a sidewalk to reach a driveway but never ride along one. The Highway Patrol tells its officers otherwise, and no court has settled which is right. Check the local code first.
Why PEVRA reads it this way
What the law says
CVC § 21663: no person shall operate a motor vehicle upon a sidewalk “except as may be necessary to enter or leave adjacent property”. Read the exception narrowly; it covers crossing a sidewalk, not riding along one. For an electrically motorized board, § 21294(b) caps the rider at 15 miles per hour on a sidewalk and § 21292 requires a bicycle helmet there. CVC § 21968 bans a motorized skateboard from every sidewalk, path and trail, and § 21968(b) says an electrically motorized board is not a motorized skateboard.
The two readings
On the reading PEVRA plans around, a machine California has never defined is a motor vehicle under CVC § 415(a), and § 21663 keeps it off the sidewalk. On the other reading the wheel is a board, and everything turns on § 21294(a): a board “shall only operate” on a highway designated at 35 miles per hour or less, or inside a Class II or Class IV bikeway. That is not the plain sidewalk ban it first looks like, because the Vehicle Code’s own definition places a sidewalk within the highway — a section PEVRA has read and has not yet put on this row — and because three sections, § 21292 and § 21294(b) and (c), each put a duty on “a highway, bikeway, or any other public bicycle path, sidewalk, or trail”. Reading § 21294(a) as a ban everywhere else kills the word “sidewalk” three times over.
The Highway Patrol has taken the permissive side in writing: Table 4-2 of its enforcement manual tells officers “An EMB may be operated on a highway, bikeway, or any other public bicycle path, sidewalk, or trail.” That reads a duty list as a permission list. PEVRA neither adopts it nor calls it wrong; the manual’s pictured examples are a hoverboard and an electric skateboard, not a one-wheeled machine, and its row header claims a local authority may authorize use, a power § 21967 does not confer.
What PEVRA cannot tell you
Which reading a court would take. PEVRA has read the board article, the manual and the 2015 bill file, and found no California court decision or Attorney General opinion choosing between the readings in the ten years since the board article was written.
Local
CVC § 21967 lets a city or county adopt rules “prohibiting or restricting persons from riding or propelling skateboards, or electrically motorized boards, on highways, sidewalks, or roadways”. It lets a local authority prohibit or restrict, and lets it authorize nothing. The San Francisco row on this site carries that city’s answer.
Where PEVRA stands
PEVRA’s position is that electric unicycles belong on all roads, bike paths and sidewalks, at a speed appropriate to and limited by the prevailing use of the space. A sidewalk shared with people walking is a walking-pace place.
no person shall operate or move a motor vehicle upon a sidewalk except as may be necessary to enter or leave adjacent property
The definition turns on: wheel count, handlebars, floorboard, motor power, speed capability. Limits: 1000 W max motor power · 20 mph max speed.
Prohibited on sidewalks and footpaths. CVC 21663, under the motor-vehicle reading: a motor vehicle may not be operated on a sidewalk except to enter or leave adjacent property — crossing, not riding along. CVC 21967 lets a city or county restrict boards on sidewalks too.
On sidewalks and footpaths: 15 mph or under. CVC 21294(b) names the sidewalk only to cap an electrically motorized board at 15 mph on it, and 21294(c) requires slower where people are about. Binds only under the board reading.
A helmet is required (the standards described in CVC § 21212). CVC 21292: a fitted and fastened bicycle helmet for an electrically motorized board on a sidewalk. Board reading only. The Highway Patrol’s manual reads this duty list as a permission list; the statute does not say that.
Trails
Contested — the sources disagree
The law’s definition excludes this device by its shape.
Probably not, and on a trail signed against motor vehicles riding one can be a criminal offence. California’s old ban on motorized skateboards was written not to reach a board like this, but nothing plainly permits one on a trail either. Whoever owns the trail sets the rule you will actually meet.
Why PEVRA reads it this way
What the law says
CVC § 21968(a) bans a motorized skateboard from “any sidewalk, roadway, or any other part of a highway or on any bikeway, bicycle path or trail, equestrian trail, or hiking or recreational trail”, and § 21968(b) says an electrically motorized board is not a motorized skateboard, so on the board reading that ban does not reach the device. Under the motor-vehicle reading, CVC § 23127 makes it a misdemeanour to operate an unauthorized motor vehicle on a “hiking or horseback riding trail or bicycle path that is clearly marked” with signs at its entrances. Wherever a board is, § 21294(b) caps it at 15 miles per hour on a trail and § 21292 requires a bicycle helmet.
The two readings
The restrictive case has two limbs. On the motor-vehicle reading § 23127 closes any signed trail outright, with a criminal penalty. On the board reading the only bar is § 21294(a)’s “shall only operate” read as a closed list of places — and against that, § 21292 and § 21294(b) and (c) each impose duties on “a highway, bikeway, or any other public bicycle path, sidewalk, or trail”, so a total ban makes the word “trail” dead in all three. The Highway Patrol takes the permissive side in writing, telling officers a board may be operated on a trail, while the same chapter repeats § 21968’s total ban for a motorized skateboard; it says nothing about which side a one-wheeled machine falls on.
What PEVRA cannot tell you
Whether a one-wheeled machine that fails the board definition is a “motorized skateboard” under § 21968, and which reading of § 21294(a) a court would take. PEVRA has read both sections, the manual and the 2015 bill file and found no California court decision or Attorney General opinion deciding either.
Local
A trail usually has an owner — a state park, a district, a city — whose own rules bind you regardless of the Vehicle Code. Inside a state park unit, 14 CCR § 4360 says “all trails are open to pedestrians and closed to all other uses” unless the Department has designated otherwise; see the park row.
Where PEVRA stands
PEVRA’s position is that electric unicycles belong on all roads, bike paths and sidewalks, at a speed appropriate to and limited by the prevailing use of the space. On a trail that means walking pace around people on foot.
A motorized skateboard shall not be propelled on any sidewalk, roadway, or any other part of a highway or on any bikeway, bicycle path or trail, equestrian trail, or hiking or recreational trail.
The definition turns on: wheel count, handlebars, floorboard, motor power, speed capability. Limits: 1000 W max motor power · 20 mph max speed.
On trails: 15 mph or under. CVC 21294(b): 15 mph for an electrically motorized board on a trail, and slower still where the surface and the people on it require (21294(c)). Board reading only; a trail’s owner may forbid the device altogether.
A helmet is required (the standards described in CVC § 21212). CVC 21292: a properly fitted and fastened bicycle helmet for an electrically motorized board on a trail. Binds only under the board reading, and says nothing about whether a board may be on the trail at all.
Parks
Allowed, with conditions
The law’s definition reaches this device without naming it.
It depends entirely on who owns the park. In a California state park, roads and parking lots only, not trails or lawns, and 15 mph anywhere people gather. In a county or city park the answer is no unless that county or city has opened it, and PEVRA has found none that has.
Why PEVRA reads it this way
What the law says
CVC § 21113(a) bans driving a vehicle “upon the driveways, paths, parking facilities, or the grounds” of a state park unit, a county park, a transit property or any property under a city council’s direct control — unless, under § 21113(a)(2), the agency running the place permits it on its own conditions. It bans a “vehicle”, not a “motor vehicle”, and § 670 makes a vehicle any device propelled other than by human power, so the ban and any permission reach this machine without anyone deciding whether it is a motor vehicle or a board.
The state park system has used that permission. 14 CCR § 4350 says the Title 14 regulations “contain the special conditions referred to in Section 21113 of the Vehicle Code”. The conditions that govern riding: a vehicle may be used only on a road or a parking area in a unit (§ 4355); unless the Department has designated a trail for another use, it is open to pedestrians and closed to everything else (§ 4360); no more than “15 miles per hour in camps, picnic areas, utility areas, or headquarters areas” or anywhere the public assembles (§ 4353); and every operator “shall be properly licensed” (§ 4357). The list is not closed: § 4300(d) says “Special regulations for an area or a subject do not preclude the application of general regulations unless expressly so indicated.” So the general park rules stack on top of these.
The two readings
This is the one California surface row where the readings mostly agree, because § 21113 turns on “vehicle”. They part on a park road: § 4350 applies the Vehicle Code’s highway rules inside a unit, which under the motor-vehicle reading brings back the registration a one-wheeled device cannot obtain, and under the board reading brings back § 21294’s slow-road and speed rules.
What PEVRA cannot tell you
How “properly licensed” in § 4357(a) lands on a one-wheeled device; the section’s own note cites CVC § 12501, the list of people the licensing law does not reach, and PEVRA takes no position. One argument is that a board needs no licence, so its rider is properly licensed in the only sense the code asks; another is that an unlicensed rider simply fails (a). § 4357(b) lets the Department authorize a type of vehicle to be operated by other than licensed operators, which is something a rider organisation can ask for in writing. PEVRA has verified no county or city that has granted permission under § 21113(a)(2). San Francisco needs its own answer: its Charter puts park land under the Recreation and Park Commission, so the San Francisco Park Code governs there and PEVRA has not read it.
Local
CVC § 21113(b) requires an agency to post signs for any condition it imposes and to keep a written statement of them at its principal office, so a unit’s own posted rules can narrow all of this and are the thing to read at the gate.
Where PEVRA stands
PEVRA’s position is that electric unicycles belong on all roads, bike paths and sidewalks, at a speed appropriate to and limited by the prevailing use of the space. A park path shared with people walking is a walking-pace place, and PEVRA would rather ask an agency to open one on conditions than ride one that is closed.
except on a road or a parking area in any unit or a portion thereof
Verified by Jesse Garnier on · next review · last checked , source unreachable
Prohibited in parks. Read this first: CVC 21113(a)(1) bans a vehicle from the paths and grounds of a county park or city-controlled property unless the agency has permitted it under 21113(a)(2). PEVRA has verified no county or city that has.
Allowed on parks only where a sign says so. CVC 21113(a)(2) with 14 CCR 4350: inside a state park unit the Department has permitted vehicles on the conditions in Title 14, and 21113(b) requires the unit to post any condition it imposes. Read the signs at the gate.
Prohibited on trails. 14 CCR 4355: in a state park unit a vehicle may be used only on a road or a parking area — not a lawn, footpath or trail. 14 CCR 4360: a trail is open to pedestrians and closed to all else unless the Department designates otherwise.
In parks: 15 mph or under. 14 CCR 4353(a): 15 mph in camps, picnic areas, utility and headquarters areas and wherever the public assembles. A park regulation, so it binds under both California readings, unlike CVC 21294(b)’s board-only cap.
A driver license is required. 14 CCR 4357(a): everyone operating a vehicle in a unit “shall be properly licensed”. How that lands on a one-wheeled device is unresolved and PEVRA takes no position; 4357(b) lets the Department authorize a vehicle type for unlicensed use.
Helmets
Contested — the sources disagree
The law’s definition excludes this device by its shape.
Wear a helmet; that is PEVRA’s advice. Whether the law requires one turns on something you can see: a wheel with a seat is read as a motorcycle and owes a motorcycle helmet; a small wheel read as an electric board owes a bicycle helmet; a seatless wheel too big to be a board is reached by neither rule.
Why PEVRA reads it this way
What the law says
For an electrically motorized board, CVC § 21292 says a person shall not operate one on a highway, bikeway, public bicycle path, sidewalk or trail “unless that person is wearing a properly fitted and fastened bicycle helmet” meeting the bicycle-helmet standard the section points to. It writes in no age limit, so it binds adults too. The Highway Patrol instructs its officers the same way in its manual, though its paraphrase drops the words naming the standard.
For a motorcycle, CVC § 27803(a) says a driver and any passenger “shall wear a safety helmet meeting requirements established pursuant to Section 27802” when riding on the highways. CVC § 400 makes a motorcycle “a motor vehicle having a seat or saddle for the use of the rider, designed to travel on not more than three wheels in contact with the ground”, and a wheel ridden with a seat answers both halves of that test.
The two readings
The two rules demand different helmets. The board route asks for a bicycle helmet; the motorcycle route asks for a motorcycle helmet, a different piece of equipment. Which route reaches you depends on the machine: the board definition in CVC § 313.5 is the statute’s test — a floorboard, an electric propulsion system averaging less than 1,000 watts, 20 miles per hour under power — and a seat is the switch for the other. None of those numbers is a riding instruction.
What PEVRA cannot tell you
A wheel with no seat that is also outside the board class is reached by neither section. For that machine PEVRA has verified no California helmet duty, and says that about the sections on this row and the board article only, not about the whole Vehicle Code, and not as permission. PEVRA has not yet published a verified record of the motorcycle-helmet standard itself, so this row names the standard the statute points to and does not say what it contains.
Where PEVRA stands
Wear one. PEVRA’s job is to describe and model safe riding, and a helmet is the least of it, whatever the statute finally says.
(a) A driver and any passenger shall wear a safety helmet meeting requirements established pursuant to Section 27802 when riding on a motorcycle, motor-driven cycle, or motorized bicycle.
The definition turns on: seat, wheel count, floorboard, motor power, speed capability. Limits: 1000 W max motor power · 20 mph max speed.
A helmet is required (FMVSS 218 via CVC 27802). Motor-vehicle reading: CVC 400(a) makes a seated wheel a motorcycle, and CVC 27803(a) then requires a safety helmet meeting the motorcycle standard the section points to, on the highways. Not the bicycle helmet CVC 21292 asks for.
A helmet is required (CVC 21212). Board reading: CVC 21292 requires a properly fitted and fastened bicycle helmet on a highway, bikeway, public bicycle path, sidewalk or trail, with no age limit. It binds only a machine that answers the board definition in CVC 313.5.
Minimum age
Riders must be 16 or older
The law’s definition excludes this device by its shape.
Sixteen, but only for the small, low-power board class, which is probably not your wheel. On a bigger machine California asks for a driver licence instead, and no licence class has been shown to cover a one-wheeled vehicle. If none does, that is not a later age. It is no lawful route at any age.
Why PEVRA reads it this way
What the law says
CVC § 21291 says an electrically motorized board “shall be operated only by a person who is 16 years of age or older”, with no exception written in — no supervised riding, no parental consent, no learner tier. It reaches a wheel only if the machine answers the board definition in CVC § 313.5: a floorboard, an electric propulsion system averaging less than 1,000 watts, and 20 miles per hour under power. Those are the statute’s test, not a riding instruction.
The two readings
On a machine outside those figures, California treats the wheel as a plain motor vehicle under CVC § 415(a), and CVC § 12500(a) then requires a driver licence to be on a highway at all. PEVRA will not tell you that means 16. § 12500 sets no age anywhere in it, and § 12500(d) says you may not drive a vehicle “not of a type for which the person is licensed”. Whether any class in CVC § 12804.9 reaches a one-wheeled vehicle is unresolved — Class M1 reaches “A two-wheel motorcycle or a motor-driven cycle”, and the second half has never been construed for an electric machine. If no class reaches it, that route is no lawful route, at any age.
What PEVRA cannot tell you
On the sections PEVRA has read, nobody under 16 has a lawful way to ride one of these in California under either reading; the driver-licence age sections and the junior permits that reach lower have not been read for this row.
Local
No California city can set its own number. CVC § 21 makes the Vehicle Code uniform statewide and bars a local authority from legislating on a matter the code covers unless the code expressly allows it. A city can still restrict where a board rides under other sections; it cannot change who may ride one.
Where PEVRA stands
PEVRA’s position is that no licence should be required to operate below 30 mph. An age rule tied to a class that fits almost no real wheel is a rule about a machine nobody rides.
An electrically motorized board shall be operated only by a person who is 16 years of age or older.
The definition turns on: floorboard, motor power, speed capability. Limits: 1000 W max motor power · 20 mph max speed.
Rider must be 16 or older. CVC 21291: 16 or older to operate an electrically motorized board, with no supervised or parental exception. Binds only a machine inside the board definition in CVC 313.5; a bigger wheel falls to the licence rule below.
A driver license is required. CVC 12500(a), motor-vehicle reading: a driver licence to drive on a highway, and 12500(d) says only of a type you are licensed for. Whether any CVC 12804.9 class reaches a one-wheeled vehicle is unresolved, so this route names no age.
Driver license
Contested — the sources disagree
The law’s definition excludes this device by its shape.
Read the code and you need a driver licence to ride on a California street. Read the Highway Patrol’s own manual and the nearest class it recognises needs none. Nobody has settled which is right, and California has never written a licence class for a machine with one wheel.
Why PEVRA reads it this way
What the law says
CVC § 415(a) makes any self-propelled vehicle a motor vehicle. CVC § 12500(a) then says a person may not drive a motor vehicle upon a highway without a valid driver licence, “except those persons who are expressly exempted under this code”, and § 12501 is that list: federal officers on federal business, farm implements, off-highway vehicles. No board and no wheel is on it, and PEVRA has read the whole electrically motorized board article (§§ 21290–21296) and found no sentence excusing a rider from licensing.
The duty does not stop at the kerb. § 12500(c) reaches “any offstreet parking facility” — a public lot, or a shop’s free customer parking — and requires “a valid driver’s license of the appropriate class or certification to operate the vehicle” there too. A first lesson in a car park is the exact case where that matters.
Since January 1, 2026 the licence question has teeth. CVC § 22651.08(a)(1) lets a peace officer remove a vehicle with fewer than four wheels that is not an electric bicycle, whose electric motor alone can propel it past 20 miles per hour on a highway, when it is “Being operated by an operator who is not licensed to operate the vehicle.” Every element describes a typical electric unicycle. The section names no citation or warning as a precondition. Subdivision (c) requires release after a minimum of 48 hours once removal and storage costs are paid. The Highway Patrol’s manual carries this power under the heading “Removal Authority for Undefined Electric Vehicle”.
The two readings
The code, above, requires a licence. The Highway Patrol’s enforcement manual, HPM 100.68 chapter 4, prints “Driver's License Requirement” and answers “No” for an electrically motorized board in its Table 4-2. That is the guidance an officer in the field is trained on, and it is why a rider is unlikely to be cited for the licence itself. It is agency guidance, not law: it can be revised and it binds no court. The manual never mentions a unicycle or a one-wheeled device anywhere in the chapter, so reading that table onto a wheel is PEVRA’s inference and not the CHP’s statement.
What PEVRA cannot tell you
Which licence class, if any, a wheel would need. Class C is a list of named vehicle types and every entry needs two or more wheels or a named type. Class M1 is “A two-wheel motorcycle or a motor-driven cycle”, and whether a one-wheeled electric machine is a motor-driven cycle under CVC § 405 has never been construed. On PEVRA’s reading of § 405, none of the classes PEVRA has read in § 12804.9 reaches the device, nobody can be licensed for it, and the removal element above is always satisfied; on the other reading Class M1 reaches it and a licensed rider is safe from removal. Nothing in the board article reaches a large wheel at all — the board class is defined at under 1,000 watts and 20 miles per hour — so a bigger machine is in the plain motor-vehicle category on either reading. PEVRA holds no report of § 22651.08 being used against an electric unicycle anywhere in California; that is an absence of reports and not an assurance.
Where PEVRA stands
PEVRA’s position is that no licence should be required to operate below 30 mph. A licence element that no class can satisfy is the drafting gap, not the rider’s conduct.
A person may not drive a motor vehicle upon a highway, unless the person then holds a valid driver’s license issued under this code, except those persons who are expressly exempted under this code.
The definition turns on: floorboard, motor power, speed capability. Limits: 1000 W max motor power · 20 mph max speed.
A driver license is required. CVC 12500(a): a driver licence to drive a motor vehicle on a highway unless expressly exempted; CVC 12501 exempts no board. The CHP’s Table 4-2 answers “No” for a board. Since 2026 an unlicensed rider’s wheel can be removed (CVC 22651.08).
Registration and plates
Required by default — falls to “motor vehicle”
The law’s definition excludes this device by its shape.
California law says your wheel must be registered before it goes on a public street, and the state has no way to register it. That is not a ban; nobody decided to ban it. It is a requirement nobody can meet, for a reason that has nothing to do with how you ride.
Why PEVRA reads it this way
What the law says
The chain is three sections long. CVC § 670 says a vehicle is a device by which a person may be propelled or moved upon a highway, excepting one moved by human power or running on rails. CVC § 415(a) says a motor vehicle is a vehicle that is self-propelled. CVC § 4000(a)(1) says a person shall not drive, move, or leave standing upon a highway, or in an offstreet public parking facility, any motor vehicle “unless it is registered and the appropriate fees have been paid under this code”. An electric unicycle is self-propelled and carries a person on a highway, so the plain words reach it.
Nothing takes it back out. The Legislature knows how to write an exemption: CVC § 21224(a) says a motorized scooter “is not a motor vehicle” for registration, plates and financial responsibility, and CVC § 4020 says, in fourteen words, “A motorized bicycle operated upon a highway is exempt from registration.” PEVRA has read the whole electrically motorized board article of 2015 (§ 21290 onward) and the whole registration article (sections 4000 through 4023) and found no such sentence for a board, and none for anything with one wheel.
Why it cannot be met
On the Department of Motor Vehicles pages PEVRA has read, no registration category describes a one-wheeled machine: the department’s own electric off-highway class requires “handlebars for steering, a straddle seat, two wheels, and no pedals”. The Highway Patrol’s enforcement manual sets out the operating requirements for the nearest named class in a table and prints no registration row at all. So the statute requires a registration the state offers no way to obtain.
What PEVRA cannot tell you
Two things this row does not say. It does not say the Legislature decided boards must be registered: an exemption that was not written is not a decision that was made, and the opposite inference, that nobody in 2015 pictured a board at the DMV, is just as available and just as unsourced. And it does not say a rider will be stopped for it: what the law requires and what is enforced are different questions, and the second one is what this site’s rider reports are for. In the sections PEVRA has read, no California section says an electric unicycle may not be ridden, and PEVRA has verified no court decision, Attorney General opinion or agency ruling resolving any of this. This row will change the day one appears.
Where PEVRA stands
PEVRA’s position is that a device nobody can register has been left out by drafting, not banned by decision, and that the law should say so.
A person shall not drive, move, or leave standing upon a highway, or in an offstreet public parking facility, any motor vehicle, trailer, semitrailer, pole or pipe dolly, or logging dolly, unless it is registered and the appropriate fees have been paid under this code
The definition turns on: floorboard, handlebars, wheel count, motor power, speed capability. Limits: 1000 W max motor power · 20 mph max speed.
The device must be registered. CVC 4000(a)(1), through CVC 670 and 415(a): a motor vehicle may not be driven or left on a highway unless registered. No DMV category PEVRA has read fits a one-wheeled machine; no exemption was written for a board (compare CVC 21224, 4020).
Insurance
Required by default — falls to “motor vehicle”
The law’s definition excludes this device by its shape.
California does not tell you to buy insurance. It tells you to be able to prove, at all times, that you can pay for harm you cause with a motor vehicle, and on the written law your wheel is one. As of today nobody can show you a way to prove it, and the question is going to the DMV in writing.
Why PEVRA reads it this way
What the law says
CVC § 670 makes the machine a vehicle, CVC § 415(a) makes any self-propelled vehicle a motor vehicle, and CVC § 16020(a) says all drivers and all owners of a motor vehicle “shall at all times be able to establish financial responsibility pursuant to Section 16021”, and carry evidence of it. The sentence has no exception for a small, slow, light or low-powered device. PEVRA has read the whole electrically motorized board article (§ 21290 onward) and found neither “insurance” nor “financial responsibility” in it. When California means to exempt a device it says so: CVC § 21224(a) took motorized scooters out of these rules in 1999 and CVC § 24016(b) took electric bicycles out. Neither was written for a board or for anything with one wheel.
The duty is wider than a policy. CVC § 16021 lists the ways it is met: a self-insurer, an insurance policy or a bond, public ownership, a cash deposit with the department under § 16054.2(a), and any other manner the department authorizes that serves the chapter’s purpose (§ 16021(f); § 16054.2(c) says the same for evidence). A policy or bond must meet CVC § 16056(a)(2): $30,000 for injury or death to one person, $60,000 for two or more, $15,000 for property, for anything issued or renewed on or after January 1, 2025.
When you are actually asked is narrower than when the duty applies. CVC § 16028(a) reaches a person driving upon a highway, on a peace officer’s demand after a notice to appear for something else or at the scene of a reportable collision; “a peace officer shall not stop a vehicle for the sole purpose of determining whether the vehicle is being driven in violation of this subdivision”, and the evidence may be shown on a phone.
Why nobody can yet show you a way
A policy or a bond needs an insurer or a surety to agree, and PEVRA has found none that writes one on a wheel. Self-insurance is for fleets. The charitable risk pool is for nonprofits. The one route that needs nobody’s agreement is the cash deposit: “Cash deposit of $75,000 with DMV”, on the department’s Insurance Requirements page, which then says only “For information regarding cash deposits or self-insurance, contact DMV Insurance Unit at (916) 657-6677 and select Option 3.” The department publishes no form and no procedure for it; a search of its site on September 13, 2026 found none. Its leaflet SR 104 still prints $35,000 and a mailing address for the Financial Responsibility Unit. Form REG 5085, which this row once treated as the deposit form, is the notification an owner mails back after a Notice of Intent to Suspend, for a vehicle already in the department’s insurance records; its first field is a vehicle identification number, which shows the program is keyed to registered vehicles and does not show the deposit route is closed to a vehicle that has no number.
What PEVRA cannot tell you
Whether the department will take a deposit, or authorize “any other manner”, for a vehicle it cannot register and that has no identification number. No California authority has answered that, and no verified source in this record says it cannot be done. PEVRA is putting the question to the Financial Responsibility Unit in writing and will publish the answer beside this row; the day a route is shown to work, this row moves back through the queue. That is why the verdict reads effectively prohibited by default: the duty reaches the wheel, and every route to meeting it runs through an insurer’s agreement, a fleet you do not have, or a department procedure nobody has published.
Where PEVRA stands
PEVRA’s position is that insurance that actually pays out on an electric unicycle should be available to buy, and riders should carry it. Where cover cannot be bought, a legal duty to insure is a ban by another name.
All drivers and all owners of a motor vehicle shall at all times be able to establish financial responsibility pursuant to Section 16021, and shall at all times carry in the vehicle evidence of the form of financial responsibility in effect for the vehicle.
The definition turns on: floorboard, handlebars, wheel count, motor power, speed capability. Limits: 1000 W max motor power · 20 mph max speed.
Third-party liability insurance is required. CVC 16020(a): be able to establish financial responsibility at all times and carry evidence of it. A policy, a bond, a $75,000 deposit or self-insurance (CVC 16021). No published route fits a vehicle with no VIN; the question is with the DMV.
Speed limits
Allowed, with conditions
The law’s definition excludes this device by its shape.
There is always a speed rule, whichever way California reads your wheel. On a small electric board it is 15 mph, on a path or a street alike. On anything bigger the ordinary driver limits apply: 25 on a city street, 15 in an alley. And over either, riding faster than conditions allow is an offence with no number.
Why PEVRA reads it this way
What the law says
The one section that binds you under either reading is the basic speed law, CVC § 22350: no person shall drive a vehicle upon a highway “at a speed greater than is reasonable or prudent having due regard for weather, visibility, the traffic on, and the surface and width of, the highway”. It says “a vehicle”, and CVC § 670 defines a vehicle by propulsion, so it does not care what class your wheel falls in. It names no number: you can be cited under it below every posted limit, with no sign anywhere.
For an electrically motorized board, CVC § 21294(b) caps the rider at 15 miles per hour “upon a highway, bikeway, or any other public bicycle path, sidewalk, or trail”, and § 21294(c) adds the reasonable-and-prudent rule on top. For a motor vehicle, the driver limits in CVC § 22352 apply: 25 miles per hour on any highway in a business or residence district, with no sign needed; 15 in an alley, at a blind railway crossing and at a blind intersection. Since January 1, 2026 a city may declare 20 in a school zone under § 22352.5. The 65 and 55 ceilings in § 22349 sit far above any production wheel.
The two readings
Which set applies turns on whether your wheel answers the board definition in CVC § 313.5 — a floorboard, an electric propulsion system averaging less than 1,000 watts, 20 miles per hour under power. Those are the statute’s test of the machine. Every number here is a rule about how a person rides, not about how a machine is built.
What PEVRA cannot tell you
Whether your wheel may lawfully be on the road at all; that is the registration question on the road row, and a speed statute cannot answer it. And PEVRA has verified no number for a sidewalk under the motor-vehicle reading, because that reading keeps a motor vehicle off the sidewalk altogether.
Local
CVC § 21967 lets a city or county restrict or prohibit riding a board on highways, sidewalks or roadways by ordinance or resolution, so check your own city before relying on the state number.
Where PEVRA stands
PEVRA supports every rider speed limit a jurisdiction sets, by facility, and opposes any cap built into the machine. Rider limits yes, device limits no.
No person shall drive a vehicle upon a highway at a speed greater than is reasonable or prudent having due regard for weather, visibility, the traffic on, and the surface and width of, the highway, and in no event at a speed which endangers the safety of persons or property.
The definition turns on: floorboard, motor power, speed capability. Limits: 1000 W max motor power · 20 mph max speed.
Anywhere it may be ridden: 15 mph or under. CVC 21294(b), board reading: 15 mph for an electrically motorized board on a highway, bikeway, public bicycle path, sidewalk or trail, and no faster than is reasonable and prudent (21294(c)). A rule about the rider, not the machine.
On roads: 25 mph or under. CVC 22352(b)(1), motor-vehicle reading: 25 mph on any highway in a business or residence district, with no sign needed. A city may declare 20 mph in a school zone under CVC 22352.5.
At road crossings: 15 mph or under. CVC 22352(a): 15 mph at a railway crossing or an intersection where the last 100 feet of approach give no clear view, and 15 mph on any alley. None of these needs a sign.
Lights, brakes and other equipment
Lamps and brakes required
The law’s definition excludes this device by its shape.
After dark a small electric board needs a white front light and reflectors, and you may wear them instead of fitting them. A wheel too powerful to be a board falls under the full motor-vehicle list: headlamps, taillamps, brake lights, brakes, a horn. One item on that list, a mechanical parking brake, no wheel can meet.
Why PEVRA reads it this way
What the law says
If your wheel answers the board definition in CVC § 313.5, the whole equipment law is CVC § 21293: on a highway during darkness, a white front lamp visible at 300 feet, a red rear reflector at 500 feet and side reflectors at 200 feet. Subdivisions (b) to (d) let a lamp or reflector worn by the rider stand in for the item on the machine, and CVC § 280 makes darkness half an hour after sunset to half an hour before sunrise, or any time fog or rain hides a person at 1,000 feet. Nothing in the board article asks for brakes, a horn or a stoplamp.
If it does not, the motor-vehicle equipment chapter applies instead:
CVC § 24400: at least two headlamps, one each side of the front, every light source between 22 and 54 inches high.
CVC § 24600: red taillamps visible 1,000 feet to the rear; where two are required, one at the left and one at the right.
CVC § 24603: stoplamps at all times that fire when the brake is applied.
CVC § 26450: a service brake and a separate parking brake; § 26454(a) tests the service brake purely by result, so braking through the motor counts.
CVC § 27000(a): a horn audible at 200 feet that does not emit “an unreasonably loud or harsh sound”.
CVC § 26451 is the one no wheel can meet. It wants the parking brake applied by energy “isolated and used exclusively” for parking and “held in the applied position solely by mechanical means”. A wheel’s parking lock holds with its motor on its main battery. It works; it is not a mechanical latch.
The two readings
Almost every rule above reaches a motor vehicle “other than a motorcycle”, and CVC § 400 makes a seated wheel a motorcycle. Fit a seat and the headlamp rule becomes § 25650’s single lamp and the parking-brake duty falls away — and the wheel becomes a motorcycle for every other purpose too, including a licence class that may not exist and a registration the state publishes no way to obtain. PEVRA states the reading and recommends neither side of it.
What PEVRA cannot tell you
Whether your wheel passes. A steward checked three current machines against the list on September 11, 2026 and found most of it already fitted — headlamps, edge taillamps, deceleration-triggered brake lights, a horn, a parking lock — but that is a fact about those machines on that day. Check yours against the numbers above. PEVRA has verified no measurement of a wheel against § 26454(b)’s stopping-distance table or of a wheel’s horn at 200 feet, and would like both.
If you are stopped
Equipment violations are correctable: under CVC § 40303.5 the officer shall let you sign a promise to correct, a fix-it notice rather than a fine — unless, under § 40610(b)(3), the rider “does not agree to, or cannot, promptly correct the violation”. A missing lamp is an afternoon’s work. A mechanical parking brake cannot be fitted to a wheel at all, so on the one requirement a wheel structurally fails, the gentler route is the one least likely to be offered.
Where PEVRA stands
PEVRA’s position is that the behaviour, not the device, is what a law should regulate. A parking-brake clause written for cables in 1981 is not a safety rule for a self-balancing machine; it is an accident of drafting.
(a) Every electrically motorized board operated upon a highway during darkness shall be equipped with all of the following: (1) Except as provided in subdivision (b), a lamp emitting a white light that, while the electrically motorized board is in motion, illuminates the highway in front of the operator and is visible from a distance of 300 feet in front of the electrically motorized board.
The definition turns on: floorboard, motor power, speed capability, seat. Limits: 1000 W max motor power · 20 mph max speed.
At night: a white front lamp visible at 300 ft, a red rear reflector. CVC 21293(a), board reading: during darkness on a highway, a white front lamp visible 300 ft, a red rear reflector visible 500 ft and side reflectors visible 200 ft. Subdivisions (b)–(d) let the rider wear them instead.
At night: a red rear lamp visible at 1000 ft. Motor-vehicle reading: CVC 24400 two headlamps 22–54 in. high; CVC 24600 red taillamps visible 1,000 ft, left and right; CVC 24603 stoplamps at all times. A steward found these already fitted on three current wheels; check your own.
A working brake is required. CVC 26450: a service brake and a separate parking brake. Braking through the motor meets 26454(a)’s result test. The parking brake fails on mechanism: CVC 26451 wants energy isolated for it and a mechanical hold, which a motor lock is not.
Modifying the device’s speed limiter is prohibited. Not equipment you must add, but the fork: the board rules apply only to a machine inside CVC 313.5’s figures. Above them the long motor-vehicle list applies instead, so which equipment law governs is decided by what the machine can do.
Alcohol and drugs
Prohibited
The law’s definition reaches this device without naming it.
Do not ride impaired. Both ways California can read your wheel, it is against the law. What is unsettled is which law you are charged under, and the two are worlds apart: a fine of up to $250 under the board rule, or the same drink-driving law that applies to a car driver. Assume the worse one.
Why PEVRA reads it this way
What the law says
CVC § 23152 is the ordinary drink- and drug-driving law. Its operative subdivisions make it unlawful “to drive a vehicle” under the influence of alcohol (a), at 0.08 percent or more (b), under the influence of any drug (f), or under both (g). It says “a vehicle”, not “a motor vehicle”, and CVC § 670 defines a vehicle by propulsion, so on its words it reaches this machine under either reading. For (a), (f) and (g) no number is attached; an officer’s judgment of impairment is enough.
CVC § 21296 is the board article’s own rule. It makes it unlawful to operate an electrically motorized board “upon a highway while under the influence of an alcoholic beverage or any drug”, gives an arrested rider the right to a blood or breath test, names no blood-alcohol figure, and caps the punishment at “a fine of not more than two hundred fifty dollars ($250)”.
The two readings
Nothing on the face of either statute says which one governs a board rider, and the general rule and the special rule point at very different consequences. On a wheel outside the board class only § 23152 is in play. Note the footprints too: § 21296 reaches a highway only, while § 23152 says “a vehicle” without naming a place — though § 670 defines a vehicle by its being propelled “upon a highway”, and PEVRA has not read how the courts treat that for a driver off the road.
What PEVRA cannot tell you
Which section a board rider would be charged under. PEVRA has read both sections and found no California court decision choosing between them for this device. A rider should assume the worse of the two applies.
Where PEVRA stands
PEVRA’s position is that the behaviour is what a law should regulate, and impaired riding is the behaviour. There is no reading of California law under which it is acceptable.
It is unlawful for a person who is under the influence of any alcoholic beverage to drive a vehicle.
Riding at a blood alcohol concentration of 0.08 or above is an offence. CVC 23152(b): 0.08 percent, from the general drink-driving law, which says “a vehicle” and reaches this device under both readings. 23152(a), (f) and (g) need no number. The board rule, CVC 21296, names no figure at all.
Taking it on public transport
Allowed — no rule addresses it
The law has no definition that reaches this device.
Carry your wheel switched off and do not ride it anywhere in a station. Who decides is the carrier, not the state, and the carriers disagree: Amtrak bans unicycles from its property by name. State law lets an agency ban hazardous material; none of the six California agencies PEVRA has read names a battery or a wheel.
Why PEVRA reads it this way
What the law says
Two statutes prohibit carrying a class of cargo, not a device. Penal Code § 640(d)(2) bans “Carrying an explosive, acid, or flammable liquid in a public transit facility or vehicle”. Public Utilities Code § 99580(b)(7) lists “Carrying an explosive or acid, flammable liquid, or toxic or hazardous material in a system facility or vehicle” — and § 99580 is not a rule of its own: subdivision (a) makes it a list of acts a transit agency may penalise by ordinance, capped at $125. Everything else in state law is about riding: Penal Code § 640(b)(5) reaches riding a motorized scooter or similar device in a station, and § 99580(b)(10) reaches skateboarding, roller skating, bicycle riding and roller blading. Neither list names a one-wheeled device.
The Legislature knew how to protect bringing a wheeled vehicle aboard. § 99580(b)(10)’s exception protects “transporting a bicycle aboard a system vehicle”, and § 99170(a)(8) hands bicycle carriage to each transit district’s own ordinance. It wrote that protection for one device, by name.
The two readings
Whether a large lithium-ion pack is “toxic or hazardous material” under § 99580(b)(7). One reading: the phrase sits beside explosives, acid and flammable liquid, and a sealed battery inside a machine is none of those. The other: the words set no size floor and a large pack is a hazardous article in other regimes. The state never applies the phrase to a battery; an agency could, by ordinance.
What PEVRA cannot tell you
PEVRA has read Penal Code § 640 in full and Public Utilities Code §§ 99170(a) and 99580(b) in full and verified no California statute that prohibits carrying a switched-off wheel; that perimeter is three sections and no more. PEVRA has found no California case or opinion on the words, and has read the conduct rules of BART, Muni, LA Metro, Caltrain, VTA and AC Transit: none names a battery, lithium, a hoverboard or a one-wheeled device, and none reads “hazardous material” onto a battery. What PEVRA cannot tell you is whether an officer would stretch BART’s reasoning — that a motorized scooter is a “vehicle” under the Vehicle Code and so may not come aboard — onto a wheel; the page never does. Check your operator before you carry.
Your carrier
The six California agencies, read September 13, 2026. BART: motorized scooters are prohibited inside stations and trains “unless they can be folded and carried”, and its code of conduct bars flammable liquid and combustible material “such as gasoline, kerosene or propane”. Muni: folding bikes and scooters, powered or not, “Must be carried in folded position on board vehicles, around stations and on platforms.” LA Metro: wheeled riding devices “may not be ridden in Metro facilities or vehicles” and may be carried or walked; its code copies the Penal Code’s hazardous line. Caltrain: bikes and scooters ride in the bike cars and “must not be ridden in station buildings, on platforms or ramps.” VTA: “No flammable materials allowed”, and no riding bikes or skateboards on its property. AC Transit: folding scooters allowed, non-collapsible powered scooters not. None names a wheel.
Amtrak bans it by name: “Hoverboards, OneWheel, Unicycle and self-balancing scooters are prohibited on Amtrak property.” The page does not say what counts as its property; the station you use may belong to a city or a transit agency, and PEVRA has not verified which stations Amtrak treats as its own. Pacific Surfliner’s published rule is a weight and box-size test for an electric bicycle and names no wheel. Gold Runner names “hover boards” and “similar items” and sends the reader to Amtrak’s list. All three are a carrier’s own policy, not law.
Where PEVRA stands
PEVRA’s position is that a switched-off wheel is luggage, and that a carrier’s rule should say what it means in words a rider can find.
Carrying an explosive or acid, flammable liquid, or toxic or hazardous material in a system facility or vehicle.
Prohibited anywhere it may be ridden. Amtrak’s baggage page: “Hoverboards, OneWheel, Unicycle and self-balancing scooters are prohibited on Amtrak property.” The page does not define its property, and the station you use may not be Amtrak’s; a carrier’s policy, not law.
Carrying a passenger is prohibited. Carry it, do not ride it. Penal Code 640(b)(5) and PUC 99580(b)(10) make riding a scooter, skateboard or bike in a transit facility an offence; neither names a wheel, but operators’ rules do. PEVRA has verified no statute against carrying.
Charging on board
Allowed — no rule addresses it
The law has no definition that reaches this device.
Do not plan on charging aboard. California’s transit statutes say nothing about batteries, chargers or sockets in the three sections PEVRA has read, so state law neither permits nor forbids it. Each carrier writes its own rule, and Amtrak’s is the strictest PEVRA checked: a unicycle is not allowed on its property.
Why PEVRA reads it this way
What the law says
Penal Code § 640, the state’s transit-conduct law, bans explosives, acid and flammable liquids and names no battery, charger or socket. Public Utilities Code § 99170(a) is a list of eight prohibited acts and names none either; § 99580(b) likewise, though its carrying line reaches “toxic or hazardous material”, which is the carriage row’s open question. That is a silence, which is the weakest kind of finding: it says nobody has written a rule, not that a rule could never apply.
What PEVRA cannot tell you
Anything beyond a transit facility or vehicle, which is all these sections reach. And what your operator says: California leaves transit conduct to the individual operators, and PEVRA has still not read BART’s, Muni’s, Caltrain’s or any ferry’s rules.
Your carrier
Amtrak goes further than a charging rule. Its baggage page says “Hoverboards, OneWheel, Unicycle and self-balancing scooters are prohibited on Amtrak property.” The charging rule Amtrak writes for the e-bikes and scooters it does accept never reaches a wheel, because the wheel is not allowed aboard at all.
Where PEVRA stands
PEVRA’s position is that a rule about charging should be a rule about charging, written by the carrier and posted where a rider boards.
Carrying an explosive, acid, or flammable liquid in a public transit facility or vehicle.
The law’s definition reaches this device without naming it.
This law is aimed at shops, not riders. It does not make owning, riding or charging an uncertified wheel unlawful, and a seller must hand you the battery’s test report if you ask. Whether it reaches electric unicycles at all has never been decided, and if you sell your own used wheel, you are a seller.
Why PEVRA reads it this way
What the law says
SB 1271 of 2024 added Chapter 23 to Division 20 of the Health and Safety Code, operative January 1, 2026 (§ 26305). Its sale rule is one sentence, § 26302(b): a person shall not distribute, sell, lease, or offer for sale or lease a “powered mobility device” unless its battery has been tested by an accredited testing laboratory for compliance with ANSI/CAN/UL 2272. It tests the battery, not the device, and it names one standard. § 26304 gives a buyer a right: a manufacturer, importer, distributor or retailer “shall provide, upon request, a true and accurate copy of the test report for the product”. Rental is § 26303, which tests the whole device and does not become operative until January 1, 2028.
The two readings
Whether the sale rule reaches an electric unicycle turns on two questions, and no court, Attorney General opinion or regulation has read either.
First, is a wheel a powered mobility device? § 26300(h)(1) lists three Vehicle Code classes by number, none of them one-wheeled, and then “(D) Any other personal mobility device powered by a lithium-ion storage battery” — a definition by function rather than shape, the first PEVRA has found in California. Against that: “any other” after a list is usually read as reaching things of the same kind as the list, and “storage battery” is defined as one that propels an electric bicycle or a powered mobility device, a circle. PEVRA takes no position on which reading wins.
Second, the carve-out. § 26300(h)(2) says a powered mobility device “does not include … a vehicle required to be registered with the Department of Motor Vehicles”. On the registration row PEVRA has verified that CVC § 4000(a)(1) reaches a wheel, so if those words mean what that row says, the wheel falls straight back out of this chapter. The counter is three missing words: when the Vehicle Code means a class of vehicle it says of a type required to be registered, and (h)(2) omits of a type.
Selling your own wheel
§ 26302(e)(1) requires the laboratory’s mark to be “permanently affixed directly on” the device, and (e)(2) lifts that duty for a device “being sold or leased secondhand”. It lifts the duty to display the mark; it says nothing about (b)’s duty to have had the battery tested. PEVRA has found no authority reading (e)(2) to relieve a private seller of (b), and does not tell you that it does.
What PEVRA cannot tell you
Who enforces it: the chapter names no penalty and no enforcer, and PEVRA has read all six sections and found none. The route PEVRA did find is the Unfair Competition Law, which makes an unlawful business practice independently actionable; that section is not yet on this row. And PEVRA has read no State Fire Marshal regulation under this chapter: the 2025 Fire Code is the one source that could move this row off contested, and its publisher’s site serves a page no tool can read.
Pending
Senate Bill 1167, enrolled August 31, 2026 and presented to the Governor on September 4, rewrites § 26300(h): the list shrinks to the motorized scooter and the functional catch-all, and the registration carve-out is carried over word for word. Neither question closes. Under article IV, section 10(b)(2) of the California Constitution a bill still in the Governor’s possession becomes a statute if it is not returned by September 30, so SB 1167 becomes law on September 30, 2026 unless returned; this row is scheduled for re-reading the day after.
Where PEVRA stands
PEVRA’s position is that a battery-safety standard is a good law aimed at the right people, and that a carve-out which turns on a registration nobody can obtain is the same drafting accident this whole page documents.
A person shall not distribute, sell, lease, or offer for sale or lease a powered mobility device unless the battery for the powered mobility device has been tested by an accredited testing laboratory for compliance with ANSI/CAN/UL 2272.
Verified by Jesse Garnier on · next review · Review overdue since October 1, 2026
The definition turns on: enumerated list.
Teaching and instruction
Contested — the sources disagree
The law’s definition excludes this device by its shape.
Teaching a friend for free is outside California’s driving-school licence rule, which is written for paid instruction. Charge for a lesson and nobody knows: that rule is written for motor vehicles, and whether your wheel is one has never been decided by any court or agency. Being wrong is a misdemeanour, not a ticket.
Why PEVRA reads it this way
What the law says
Vehicle Code § 11100(a) forbids two paid things: owning or operating a driving school, and giving “driving instruction for compensation”, without a licence from the department. § 310.6 defines a driving school as “a business which, for compensation, conducts or offers to conduct instruction in the operation of motor vehicles”, and § 311 says the same for the owner’s licence. No money, no § 11100. Note “or offers to conduct”: advertising paid lessons is inside the definition before any money moves. § 11100.1, in the same chapter, binds anyone who instructs in all-terrain vehicles with no compensation element, which is why this row says § 11100 and not “the chapter”.
Being wrong is not a ticket. § 40000.11(a) makes a violation of Division 5 “a misdemeanor, and not an infraction”.
The exemptions in § 11101(a) are a closed list of seven. Two are clean: (a)(2), “Nonprofit public service organizations offering instruction without a tuition fee”, the shape of PEVRA’s own free training; and (a)(6), employers instructing their employees. (a)(7) looks helpful and is narrow: a school “engaged exclusively in giving off-the-highway instruction in the operation of racing vehicles or in advanced driving skills to persons holding valid drivers’ licenses”. A beginner lesson in a car park is not advanced skills, and a coach who also teaches on the street loses “exclusively”.
The two readings
If you charge, the contest arrives twice. The first limb of § 11100(a) runs through § 310.6’s “motor vehicles”, and whether a wheel is one is the question this whole page leaves open. The second limb, “driving instruction for compensation”, uses a phrase the code never defines: PEVRA read the definitions division (sections 100 through 681) and found no definition of drive, driving, driving instruction, operate or operator. The nearest, § 305, defines a driver against “vehicle” in § 670, which is broader than “motor vehicle”. Read alone, that limb would reach teaching the operation of any vehicle, which catches this device under the board reading too. So paid teaching is contested under both readings, not one.
What PEVRA cannot tell you
If the chapter does reach a paid coach, whether that coach can hold the licence. § 310.4 makes a driving instructor “an employee of a driving school”, with no self-employment escape, while § 310.8 contemplates an owner who operates his own school; § 11105.5’s independent instructor’s licence is shut in any city over 50,000 with a licensed school and in every county over 400,000 people. Whether the department licenses a one-person school is a fact about agency practice PEVRA has not verified and will not guess at. PEVRA searched CourtListener, the Attorney General’s published opinions, Title 13 of the California Code of Regulations and the department’s own occupational-licensing pages and found no court, opinion, regulation or agency page applying the driving-school chapter to a device the department will not register. One appellate decision cites § 11100 at all, Jackson v. Gourley, 105 Cal.App.4th 966 (2003), and nobody at PEVRA has yet read what it holds.
Where you teach
The venue has its own rules, and they bind a rider who is teaching nobody. On public grounds — a school, a college, a park, a transit facility — CVC § 21113(a) forbids driving a vehicle on “the driveways, paths, parking facilities, or the grounds” without the governing board’s permission, and it says “a vehicle”, so it reaches this machine directly. § 12500(c) carries the licence question into “any offstreet parking facility”, including a shop’s free customer parking. In a state park, 14 CCR § 4319 bars recreational activities that endanger people or interfere with visitors “except as permitted by the Department” and requires a Special Event permit where any criterion in § 4301(j) applies — three of the six involve money, and one is a District Superintendent’s call that the event creates “a greater potential hazard or liability to the State than incurred through typical operations”; § 4331 separately bars selling a service in a unit except as permitted. § 4300(d) and (g) make those rules stack under the Vehicle Code rather than replace it, and Public Resources Code § 5008(d) makes a violation a misdemeanour or an infraction with a fine of up to $1,000.
Where PEVRA stands
PEVRA’s position is that the behaviour, not the device, is what a law should regulate. Teaching people to ride safely is the behaviour PEVRA exists to model, and a licence rule written for driving schools should say in words whether it reaches a coach on one wheel.
No person shall own or operate a driving school or give driving instruction for compensation, unless a license therefor has been secured from the department.
No authority found. PEVRA searched for any California court decision, Attorney General opinion, regulation or departmental publication applying the Vehicle Code's driving-school chapter (Div. 5, Ch. 1, §§ 11100-11114) to an electric unicycle, or to any device the Department of Motor Vehicles has no registration category for, and found none. One California appellate decision cites § 11100 at all -- Jackson v. Gourley, 105 Cal.App.4th 966 (Cal. Ct. App., 1st Dist., Div. 5, Jan. 28, 2003), docket A097940 -- and a CourtListener index query for that docket returns one hit for "11100" and zero hits for scooter, skateboard, unicycle, moped or bicycle, which establishes that the opinion cites the section and never names a non-car device. It does NOT establish what the court held about the section, and nobody at PEVRA has read the opinion's reasoning: four routes to its text were shut to an automated reader on 2026-09-12 (the CourtListener search API returns a citation header only; its opinions endpoint returns 58 bytes without a token; law.justia.com serves a Cloudflare interstitial; casetext.com has been retired). A steward opening https://www.courtlistener.com/opinion/2283518/jackson-v-gourley/ in a browser closes this gap in one click, and the question to answer is whether the court construes the phrase "driving instruction for compensation" or merely cross-references § 11100 in a licensing dispute. This record exists so that the absence is a dated, reproducible finding with its perimeter attached rather than a sentence in a commit message, and so the next steward does not repeat the search from nothing. Searched CourtListener REST API v4 (search endpoint, type=o, California state courts), CourtListener docket query A097940 cross-referenced against each device term, California Attorney General published opinions index at oag.ca.gov/opinions, Barclays Official California Code of Regulations, title 13 (Department of Motor Vehicles), driving-school and instructor licensing articles, at govt.westlaw.com/calregs, dmv.ca.gov occupational licensing pages for driving schools and driving instructors, leginfo.legislature.ca.gov bill search, 2025 and 2026 sessions, for amendments to Veh. Code 11100, 11101 or 310.6 on for: Vehicle Code 11100; Vehicle Code 310.6; driving school; driving instruction for compensation; driving instructor; electric unicycle; electrically motorized board; motorized scooter; skateboard; moped.
Reports on file by tier: A 0 · B 4 · C 1 · D 5. Counts, never rates. Last reviewed 2026-09-09; next review 2027-03-06.
Since 1 January 2026 this row reads seizure_risk, and the reason is a statute rather than anything anyone has watched happen. CVC 22651.08, added by AB 875, lets a peace officer remove a vehicle with fewer than four wheels that does not meet the definition of an electric bicycle, whose electric motor alone can propel it in excess of 20 miles per hour on a highway, ridden by an operator who is not licensed to operate it. Read those elements against a typical electric unicycle and every one of them is met. The licence element is met on PEVRA's reading of the code, and this record used to say it was met PERMANENTLY, which was too strong and is withdrawn. Three of the four classes plainly miss: Class C is an affirmative list wanting two or three axles, a length or a named type, and one wheel fits no entry on it; Class M2 is CVC 406's motorized bicycle, which wants two wheels or three. Class M1 is the open one. It reads "A two-wheel motorcycle or a motor-driven cycle" -- two limbs, and only the first counts wheels -- so whether it reaches this machine turns on CVC 405's requirement of a motor that displaces less than 150 cubic centimetres. PEVRA reads that as inapplicable to an electric motor; the untested contrary reading is that a motor displacing nothing displaces less than 150. The two readings have OPPOSITE consequences here, and the one PEVRA holds is the worse one for riders: on PEVRA's reading nobody can ever be licensed for the device and this seizure element is always satisfied, while on the contrary reading Class M1 would reach it and the element would fail. PEVRA publishes the reading it can support rather than the one it would prefer, and says here that the favourable one exists and that no court has chosen. Say exactly how far that argument gets, because it is a CHAIN and only its first link is solid. One: the machine has a seat and one wheel, so CVC 400(a) makes it a motorcycle -- settled enough that this jurisdiction's definition row has said it for months. Two: it is a motor-driven cycle only if an electric motor can "displace less than 150 cubic centimeters" -- contested, and PEVRA reads it the other way. Three: CVC 12804.9(b)(4)'s second limb would then reach it -- textually clean, never construed. Four: holding an M1 would make a rider "licensed to operate it" for CVC 22651.08 -- tested by nobody, anywhere. PEVRA does not advance this argument and no rider should act on it: an M1 endorsement is not protection against a wheel being taken, and getting one would not make the machine registrable under CVC 4000(a)(1), which is the bar that actually keeps it off the road. No citation, no arrest and no prior warning is required. The same section requires the machine back after a minimum of 48 hours once removal, seizure and storage costs are paid, and it leaves one mandatory public trail — a city or county that adopts administrative charges must post the schedule conspicuously on its own website.
PEVRA holds no record of an electric unicycle being seized in California, under this section or any other. That is the absence of a report and not a count of zero: no California agency PEVRA has found publishes removals by Vehicle Code section, so a wheel taken today would be uncountable by anyone, this project included. The value seizure_risk describes documented exposure and asserts no incidence. typical_outcome stays unknown for the same reason, seizure_reported stays false and flips only when a rider reports one, and statute_sections_observed stays empty because nothing has been observed. This is PEVRA's reading of text eight months old. No court has construed it.
Four Highway Patrol documents sit beside that statute, and they are dated. On 27 May 2026 the Highway Patrol issued an information bulletin, and the same day sent the same text to every police and sheriff's department in California as All-Agency Bulletin 285: a vehicle that cannot be registered or issued an identification number may not be legally operated on-highway or off-highway, and its operation is limited to private lands. The agency's own enforcement manual, Highway Patrol Manual 100.68 chapter 4, carries a heading no California statute contains — "Removal Authority for Undefined Electric Vehicle" — and under it tells officers how to tow one. On 28 May 2026, the next day, a Highway Patrol commander acknowledged advance notice of a multi-county group ride on these machines and copied the commanders whose areas it would cross.
Read those together, and do not let either half answer the other. PEVRA does not claim the commander had seen the bulletin, and does not claim the bulletin was aimed at this device: across both bulletins the words unicycle, one wheel, one-wheel, self-balancing and single wheel do not appear at all, and the subject throughout is electric bicycles and the new off-highway electric motorcycle class. What the pair shows is that legal exposure and actual treatment are different facts, and that one agency held both of them in the same week.
Three features of how this law is written belong on the enforcement axis rather than in a rule row, because each is about what officers and agencies do rather than about what a rider may do. First, almost nothing in it is compulsory: an officer MAY remove, a city MAY adopt charges, an agency MAY require a safety course, and the manual says commanders SHOULD develop tow procedures. Exactly two duties in the section are mandatory and both bind the state — the agency SHALL release the machine after a minimum of 48 hours once removal, seizure and storage costs are paid, and a jurisdiction that adopts charges SHALL post the schedule conspicuously on its own website. Second, the manual's restatement of the speed test drops three words the statute carries: the statute requires a motor capable of propelling the vehicle past 20 miles per hour ON A HIGHWAY, and the manual says only "in excess of 20 mph". Third, the Highway Patrol's own vehicle type codes have no entry for a one-wheeled device. Every named code is drawn by shape, so a stop, a citation or a removal involving this machine falls to a residual box — 96, Miscellaneous Motor Vehicle, beside a snowmobile, a golf cart and a pocket bike — which is the same accident as CVC 415(a)'s residual class, reproduced on the form an officer fills in. A machine with no code of its own cannot be counted, by the Highway Patrol or by PEVRA, and that is the honest reason the absence of reports recorded here is not a reassurance.
Two written statements from California law enforcement are on file, both dated 28 May 2026, both about the same multi-county group ride. A California Highway Patrol commander acknowledged advance notice of the route and copied the commanders whose areas the ride would cross. A county sheriff, the same day, forwarded that notice to sector lieutenants across the county and named the agencies with jurisdiction over the route. Neither statement says an electric unicycle is lawful, and neither was asked to. They record something narrower and still worth knowing: two agencies treated a group of riders as people to coordinate with rather than people to stop.
A rider in this community was stopped on a freeway on 26 May 2026, and the details matter more than the fact. A group riding electric unicycles and at least one electric scooter entered Interstate 280 NORTHBOUND in San Mateo County at the Millbrae on-ramp immediately before the CA-35 (Skyline Boulevard) exit, and left at that exit -- one on-ramp to the next off-ramp. A Highway Patrol unit was stationed just past the on-ramp. The riders chose that stretch because they understood it to be one of the I-280 segments open to bicycles. One rider was pulled over -- the scooter rider, who was last in line -- and every machine ahead of him rode on. He was given a verbal warning and his identification was taken and run. No citation was issued and nothing was removed. No Vehicle Code section was communicated to him, which is why statute_sections_observed above is still empty after this record: a stop that names no section cannot be counted, by the Highway Patrol or by PEVRA, and this is the second place in this record where the device's absence from the code makes the enforcement invisible.
This is tier C rather than tier D. The account is a rider's own, but it was written down the same afternoon in a group chat whose timestamps survive, other riders on the same ride replied to it in that thread, and a photograph exists showing the officer, a marked patrol vehicle and the stopped machine. PEVRA holds that material and does not publish it: the photograph shows an identifiable officer and a readable vehicle plate, the account belongs to the rider who lived it, and neither is needed to make the point. Two things about how this record came to exist are themselves part of it. The rider gave PEVRA permission to publish the account on 6 September 2026 and asked not to be named, and that condition binds this project permanently -- his name is not in this file, it is not in the commit that added it, and it does not go in later. And the date is confirmed by two people who were on that ride, the rider and the steward who maintains this record, rather than read off a timestamp alone.
Four things this record does NOT establish, and a reader should have all four. It is not an electric unicycle stop -- the rider stopped was on a scooter, and no wheel was stopped, cited or taken. It is not evidence that the stretch was lawful for anyone: the riders believed that section of I-280 was open to bicycles, and PEVRA has not verified that and does not repeat it. Even if it is open to bicycles, a bicycle exception would not reach either machine, and the reason is worth stating exactly because it is the reason no amount of signage research can rescue this row. CVC 21960 works by PROHIBITION, and subdivision (b) makes the SIGN the operative fact: a prohibition is effective only where appropriate signs giving notice of it are erected. So the question on any given stretch of freeway is not whether CVC 21960 could reach the device but which categories the sign at that on-ramp actually names. Subdivision (a) offers seven: pedestrians, bicycles, other nonmotorized traffic, and four powered ones -- a motor-driven cycle, a motorized bicycle, a motorized scooter, and an electrically motorized board. It adds one bridge and only one: a prohibition naming bicycles, motor-driven cycles, motorized scooters or electrically motorized boards is deemed to include motorized bicycles. Nothing in it makes a prohibition on any of those four reach any other of them. A sign that omits a category does not prohibit that category, and a segment open to bicycles is therefore not necessarily an unsigned segment -- it may be a signed one whose sign leaves bicycles out. PEVRA has surveyed none of these signs, so it asserts nothing about what CVC 21960 reaches on any particular stretch.
Except at this one ramp, where the sign has now been read. Two Google Street View captures of the northbound I-280 approach in Millbrae -- one dated August 2022, one dated May 2026, the month of this stop -- show a green FREEWAY ENTRANCE panel with the I-280 shield and NORTH beneath it, and, standing on the approach before the entrance, a white regulatory sign reading on four lines: PEDESTRIANS / MOTOR-DRIVEN CYCLES PROHIBITED. Its placement is what CVC 21960(b) asks for, signs erected upon the freeway "and the approaches thereto", so it is not a courtesy notice but the instrument that makes a prohibition effective here. Four of the seven categories subdivision (a) offers are absent from it: bicycles, motorized bicycles, motorized scooters and electrically motorized boards. Whether "motor-driven cycle" reaches this device is the whole question at this ramp, and PEVRA had it too confident. CVC 405 makes a motor-driven cycle "any motorcycle with a motor that displaces less than 150 cubic centimeters", and CVC 400(a) makes a motorcycle a motor vehicle "having a seat or saddle for the use of the rider, designed to travel on not more than three wheels in contact with the ground". A modern electric unicycle has one wheel and a seat or a surface intended for seating, so it satisfies CVC 400(a) -- as the definition row on this jurisdiction's page has said all along. Everything therefore rests on displacement, and displacement cuts two ways. PEVRA reads it as describing an internal-combustion engine, because displacement measures swept cylinder volume and an electric motor has none, which makes the clause inapplicable rather than satisfied; the structure of the code supports that, since CVC 406 expressly contemplates a device with "no pedals if powered solely by electrical energy" and CVC 21960(a) lists the electric categories separately, both of which would be redundant if "motor-driven cycle" already swallowed electric machines. Against it stands a plain-language reading nobody has tested: a motor that displaces nothing displaces less than 150 cubic centimetres. No California court has chosen, and PEVRA does not. An earlier version of this paragraph said the category "cannot describe an electric machine of any kind"; that was an assertion the project could not support and it is withdrawn. Subdivision (a) bridges its categories exactly once, deeming a prohibition on bicycles, motor-driven cycles, motorized scooters or electrically motorized boards to include motorized bicycles; nothing in it makes a prohibition on one of the four powered categories reach another of them. So the honest reading of this ramp is narrower than the one published before: the posted prohibition plainly reaches pedestrians, small-displacement motorcycles and mopeds; it plainly does not reach a bicycle or a motorized scooter, neither of which is a motorcycle under CVC 400(a); and whether it reaches a one-wheeled machine turns on a question about the word "displaces" that no court has answered.
That is a finding about one sign and it changes no verdict, which is worth saying twice because the temptation runs the other way. The device is closed out of Interstate 280 by CVC 4000(a)(1) on the motor-vehicle reading and by CVC 21294(a) on the board reading, and neither section mentions a sign or turns on one. What the finding is good for is narrower and is about how California writes rules rather than what they permit: the state posted, on a freeway approach, a prohibition naming a small gasoline motorcycle class, left bicycles off it deliberately, and named none of the three electric classes the Legislature itself wrote into the enabling section. PEVRA does not know whether that was a choice or an omission and does not guess. The evidence is tier C -- two captures by a commercial mapping service, four years apart, corroborating each other and identified by a steward who has ridden the ramp. A steward photograph taken on site and dated would sit at the same tier; the document that would replace both is the order, ordinance or resolution adopted under CVC 21960(a), which nobody has found yet. It is the OTHER two sections that close it, and neither of them mentions a sign. On the motor-vehicle reading CVC 4000(a)(1) bars an unregistered motor vehicle from any highway. On the board reading CVC 21294(a) confines a board to a highway designated at 35 miles per hour or less, or entirely within a Class II or Class IV bikeway, and I-280 is neither. Both bar the device on a bicycle-permitted shoulder exactly as firmly as on any other, so what the signs say at that on-ramp changes the answer for a bicycle and changes nothing for a wheel. And it does not establish why this rider and not another. The one rider stopped was the one whose machine the Vehicle Code actually defines -- CVC 407.5 names a motorized scooter, and no section of the code names a one-wheeled device -- but the rider's own explanation was position and not machine: he was last in line. PEVRA records both explanations and picks neither.
One thing the rider said belongs here because it is a measurement problem rather than a complaint. He was told the warning was verbal, and his identification had already been taken and run, so he does not know whether anything was written down. PEVRA cannot know either. A warning a rider cannot verify is not a countable outcome, which is why typical_outcome above stays unknown after this record instead of becoming warning.
Read the three dates in order and let them stay separate. This stop was 26 May 2026. The Highway Patrol's information bulletin and All-Agency Bulletin 285 went out on 27 May 2026. The commander's acknowledgement of the group ride was 28 May 2026. Three touchpoints in three days, and PEVRA claims no link between any two of them: nothing shows the stop reached anyone who wrote the bulletin, nothing shows the bulletin reached this officer, and the bulletins name neither this group nor this device. They are placed in order because a reader is entitled to see the order, not because the order explains anything.
PEVRA holds no record of an electric unicycle rider being stopped, cited, or having a wheel taken anywhere in California. That is an absence of records, not a count of zero. Riders describe many roadside conversations that ended without a ticket, and almost none of them were written down at the time. Closing that gap is what the rider report is for.
Read this beside the law, never instead of it. California's Vehicle Code has no class written for a one-wheeled device, so a rider who is stopped is likely to be written up under a section drafted for something else. Nothing here is a permission, and nothing here predicts what any officer will do.
The same ramp again, fifteen weeks later, and nothing happened. On the morning of 7 September 2026 a group of seven riders on electric unicycles took the identical route -- northbound Interstate 280 from the Millbrae on-ramp to the CA-35 exit -- entering the ramp at roughly 40 to 50 miles per hour. A Highway Patrol motorcycle officer was at the top of the ramp, dismounting to set up for speed enforcement. The group rode past him. About a quarter of a mile further, just beyond the CA-35 exit, a second Highway Patrol officer had a car pulled over at the roadside. The group rode past him too. Neither officer signalled, followed or made contact.
Read that for what it is, which is less than it feels like. It does not establish that either officer saw the group; the steward's own account puts "didn't see us" in quotation marks, meaning he believes they did and chose not to act, and PEVRA records only what is observable from the outside -- two officers present, seven riders past them, no contact initiated. Whether either officer registered the group, and what either concluded if so, is not knowable from a saddle. It is also not a case of an officer watching for this violation and waiving it: at 40 to 50 on a highway posted at 65 the group was not speeding, and the first officer had deployed for speed. If anything was overlooked it was presence, which is the violation neither reading of the Vehicle Code lets a wheel cure.
It is tier D. A steward's contemporaneous account with nothing yet attached; other riders on that ride carry cameras and PEVRA is asking for the footage, which would move it to tier C. Recovering it is worth doing quickly, because ride footage is overwritten.
Two observations at one on-ramp is not a posture and this record does not treat it as one. On 26 May 2026 an officer stationed just past that ramp stopped the one rider whose machine the Vehicle Code defines and let the wheels go by. On 7 September 2026 seven wheels passed two officers untouched. Both are recorded as observations at a single place, fifteen weeks apart, and neither is a rate, a trend or a permission. posture stays seizure_risk, which describes documented statutory exposure and asserts nothing about incidence; typical_outcome stays unknown; and the honest summary of this ramp is that PEVRA has watched it twice and seen a wheel stopped zero times, on a stretch where two sections of the Vehicle Code say a wheel may not be at all.
A third record, and a different kind. Steward jesse and other riders have ridden and camped in four units of the California state park system, all in the redwood corridor along US 101: Standish-Hickey State Recreation Area, camped at more than once and ridden in front of rangers, with legality never raised; MacKerricher State Park, the same but charging rather than camping; Richardson Grove State Park, ridden through from the ranger station, flagged in and welcomed to explore, and told paved roads only; and Benbow State Recreation Area, several nights' camping with riding inside the unit under rangers' approval and observation.
The Richardson Grove instruction is the one to read carefully, because it is not tolerance. "Paved roads only" is 14 CCR 4355 almost word for word: inside a state park unit a vehicle belongs on a road or a parking area and nowhere else. That ranger was applying the Department's own published condition correctly, which makes the encounter evidence that the permission in CVC 21113(a)(2) is live and in use rather than theoretical. It is the reason PEVRA went looking for the Department's written conditions at all, and found them in Title 14.
Weigh these four accounts honestly. No dates are recorded here yet, no receipt or photograph is on file, and the only documents likely to survive are card statements. They are tier D — a rider's account with nothing yet attached — and they are counted that way. They also do not show what a reader might assume: a camping receipt proves a rider was admitted and paid, not that the machine was permitted on a path, and a ranger who says nothing has not said yes. What they do show is four separate units where riders were seen on their machines by staff and nothing happened, and one where staff gave them the rule. Recovering the dates, photographs and video would move these to tier C, and PEVRA is asking riders for exactly that.
Bills in progress
No bill affecting this device class is on file for California.
Change history
296c774Jesse Garnierreview
staleness: blank JSF j_idt ids, re-encode 93 fingerprints, save the snapshot before failing
3bc161dJesse Garnierchange
site: every date a rider reads is US style, and the data stays ISO
4949bcfJesse Garnierreview
review(us-ca/carriage): six California transit agencies read; none names a battery or a wheel
560a0bbJesse Garnierchange
review(us-ca/carriage): the conduct note under the cap, measured this time
fd17df8Jesse Garnierchange
review(us-ca/carriage): the conduct note under the cap
bf3277fJesse Garnierreview
review(us-ca): the last nine rows in the new shape -- California's twenty rows now read the same way
1fbbbc2Jesse Garnierreview
review(us-ca): the seven riding-surface rows in the new shape -- one duty list, written once
d6a8cb9Jesse Garnierreview
review(us-ca): the four class rows in the new shape -- two sentences up top, the argument one tap deep
474b87fJesse Garniersupersede
supersede(us-ca/insurance): a duty nobody can yet meet is effectively prohibited by default
ec66ae1Jesse Garnierreview
review(us-ca/carriage): "Amtrak property" is Amtrak's phrase, not ours to widen
Every commit that touched a legal record, for every place, is at the change record.
Cite this page
PEVRA, “California — electric unicycle legal status”, https://pevra.org/legal/us/ca/brief, git 7d4327f, page data as of 2026-09-12.
This page is legal information, not legal advice, and is not a substitute for the advice of an attorney. Nothing here should be construed as an attempt to offer or render a legal opinion or otherwise engage in the practice of law. PEVRA does not warrant that this information is complete or accurate and disclaims all liability for any loss caused by errors or omissions. Laws change; check the 'as of' date and the official source linked on every claim.