Is Lane Splitting Legal in Utah? A Rider’s Guide to the Law
Utah riders often ask whether they can slip between lanes to beat traffic. The answer is nuanced: true lane splitting is not legal in Utah, but a related maneuver called lane filtering is, under strict conditions. Knowing the difference keeps you safe, legal, and protected if a crash happens.
Lane splitting is not legal in Utah. However, Utah does allow lane filtering, moving between stopped vehicles at low speed, but only when specific conditions are met, including a road with two or more lanes in the same direction, a speed limit of 45 mph or less, stopped traffic, and a motorcycle speed of 15 mph or less.
Lane splitting vs. lane filtering
The two terms sound similar but describe different maneuvers, and only one is allowed in Utah. Lane splitting means riding between lanes of moving traffic, often at higher speeds. Lane filtering means moving between vehicles that are already stopped, at very low speed, typically at a red light or in backed-up traffic.
| Maneuver | What it means | Legal in Utah? |
|---|---|---|
| Lane splitting | Riding between lanes of moving traffic | No |
| Lane filtering | Moving between stopped vehicles at low speed | Yes, if conditions are met |
| Lane sharing | Two motorcycles riding side by side in one lane | Generally allowed |
When lane filtering is allowed
Utah legalized lane filtering in 2019, making it one of the few states to permit any form of moving between vehicles. The law is narrow, and every condition must be met at the same time. If any one is missing, filtering is not permitted.
- Two or more lanes. The road must have two or more lanes traveling in the same direction.
- 45 mph or less. The posted speed limit on the road must be 45 miles per hour or lower.
- Stopped traffic. The vehicles you pass must be fully stopped, not merely slowing.
- 15 mph or less. The motorcycle must be traveling at 15 miles per hour or slower while filtering.
- Only when safe. The movement must be able to be made safely given the surrounding conditions.
Filtering is not allowed on freeways or freeway on-ramps, and riders may not use the shoulder or a bike lane to filter. It is meant for low-speed, stop-and-go situations, not for weaving through highway traffic.
Key point. Even where filtering is legal, it does not erase a rider’s right to compensation. If a driver injures you while you were filtering lawfully, the driver may still be at fault, but expect the insurer to argue otherwise, which is why documentation and legal guidance matter.
Why the distinction matters after a crash
After a motorcycle collision, insurers frequently claim the rider was doing something illegal to shift blame and reduce a payout. If you were filtering within the legal conditions, that argument should not hold, but you may need to prove it. If you were splitting lanes in moving traffic, Utah’s comparative fault rules could reduce or bar your recovery depending on how fault is divided. Because these determinations turn on the specific facts, having an attorney evaluate the crash can make a real difference.
What to do after a motorcycle accident
Get to safety and call 911
Move out of traffic if you can and get medical help, even if injuries seem minor at first.
Document the scene
Photograph the road, lane markings, speed limit signs, vehicles, and any traffic conditions.
Gather witnesses
Collect names and contact details from anyone who saw whether traffic was stopped and how you rode.
Talk to a lawyer first
Before giving a recorded statement, speak with a Utah motorcycle accident attorney about your options.