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When a motorcycle or bicycle passes between lanes of slow-moving or stopped traffic, it is lane splitting. This is not to be confused with using the shoulder to ride around traffic (shoulder surfing) or passing between vehicles waiting for a stop light (lane filtering or filtering up). Laws governing lane splitting differ by state.

Is lane splitting illegal?

Twenty-nine states have laws prohibiting lane splitting, though many are reconsidering their stance. Several states have already voted to allow some form of lane splitting, filtering, or shoulder surfing.

The profile view of a motorcyclist riding between a BMW and another sedan as it splits lanes.
Motorcycle splitting lanes | Justin Sullivan/Getty Images

Another 12 states have no laws defining and allowing lane splitting, but no laws expressly prohibiting a motorcycle riderĀ from doing it either. If you live in one of these states, and a police officer sees you splitting lanes, you may still be pulled over for riding dangerously or breaking some other law.

Which states allow lane splitting?

A series of motorcycles weave between traffic, lane splitting.
Lane splitting motorcycles | Jeffrey Greenberg/Universal Images Group via Getty Images

Without any further ado, hereā€™s the list of lane splitting, filtering, and shoulder surfing lawsā€“broken down by state.

StateLane Splitting Law
AlabamaLane splitting is illegal.
AlaskaLane splitting is illegal.
ArizonaCurrently reconsidering its state laws governing lane splitting. (Senate Bill 1273)
ArkansasNot specifically prohibited in state law.
CaliforniaLegal. California recommends only splitting lanes when traffic is slow, and you keep your speed within 10 mph of surrounding traffic. You can still be pulled over for dangerous riding at a police officerā€™s discretion.
ColoradoLane splitting is illegal.
ConnecticutCurrently reconsidering its state laws governing lane splitting. (House Bill 629)
DelawareNot specifically prohibited in state law.
District of ColumbiaCurrently reconsidering its laws governing lane splitting.
FloridaLane splitting is illegal.
GeorgiaLane splitting is illegal.
HawaiiShoulder surfing is legal when traffic is stopped. Lane splitting and filtering are both illegal.
IdahoLane splitting is illegal.
IllinoisLane splitting is illegal.
IndianaLane splitting is illegal.
IowaLane splitting is illegal.
KansasLane splitting is illegal.
KentuckyNot specifically prohibited in state law.
LouisianaLane splitting is illegal.
MaineLane splitting is illegal.
MarylandCurrently reconsidering its state laws governing lane splitting. (House Bill 917)
MassachusettsLane splitting is illegal.
MichiganLane splitting is illegal.
MinnesotaLane splitting is illegal.
MississippiNot specifically prohibited in state law.
MissouriNot specifically prohibited in state law.
MontanaMotorcycles moving under 10 mph may filter up. Motorcycles moving under 20 mph may split lanes. Illegal to do so when conditions are unsafe.
NebraskaLane splitting is illegal.
NevadaCurrently reconsidering its state laws governing lane splitting. (Assembly Bill 236 passed, DOT must create regulations before itā€™s allowed)
New HampshireLane splitting is illegal.
New JerseyLane splitting is illegal.
New MexicoNot specifically prohibited in state law. Motorcyclists splitting lanes are breaking other laws governing lane placement and turn signal visibility.
New YorkLane splitting is illegal.
North CarolinaNot specifically prohibited in state law.
North DakotaLane splitting is illegal.
OhioNot specifically prohibited in state law.
OklahomaNot specifically prohibited in state law.
OregonCurrently reconsidering its state laws governing lane splitting. (House Bill 2314)
PennsylvaniaLane splitting is illegal.
Rhode IslandLane splitting is illegal.
South CarolinaLane splitting is illegal.
South DakotaLane splitting is illegal.
TennesseeLane splitting is illegal.
TexasCurrently reconsidering its state laws governing lane splitting. (House Bill 879)
UtahLane filtering is allowed. Defined as passing between traffic that is moving between zero and 15 mph.
VermontLane splitting is illegal.
VirginiaLane splitting is illegal.
WashingtonCurrently reconsidering its state laws governing lane splitting. (House Bill 5254)
West VirginiaNot specifically prohibited in state law.
WisconsinLane splitting is illegal.
WyomingLane splitting is illegal.

Is lane splitting a good idea?

When I wrote up the legality of lane splitting, the comments I received were an excellent cross-section of how people feel about the practice. Some riders and non-riders argued that it is unsafe. Other riders and non-riders countered that it improves traffic flow and thus makes the roads safer.

Henry Cesari standing next to his 1986 Honda Rebel 450 on a mountain pass, the Green Mountains of Vermont visible in the background.
Your writer and his 1986 Honda Rebel 450 | Henry Cesari via MotorBiscuit

Lane splitting is a personal decision. I am a lifelong motorcycle rider and lived in California for years. There, I did practice lane splitting on occasion. But other times, when I could have legally chosen to split lanes, I chose not to because I found the conditions unsafe. I donā€™t need to tell you that itā€™s your responsibility to make the best decision you can with the information you have.

Note that a recent study found more accidents occur while motorcyclists are splitting lanes than while they are not. However, the study did not confirm whether this might be due to other factors, such as riding during rush hour when most lane splitting occurs.

When it comes to the legality of lane splitting, I have collected information on each state courtesy of the Motorcycle Legal Foundation and the attorneys at Enjuris. But I am not a lawyer, and laws change. You must do your own research on the most recent state and local laws governing lane splitting.

Next, read about whether lane splitting is actually legal where state laws are vague, or learn more about the practice in the video below: