Is Lane Splitting Legal in Washington State?

Washington’s lane-splitting law is clear for everyday riders. Under RCW 46.61.608, motorcyclists cannot ride between lanes of traffic or between adjacent rows of vehicles. That rule applies statewide, including Spokane, the Tri-Cities, Moses Lake, and the highways connecting those communities.

The harder part comes after a crash. A lane-splitting incident can affect more than a traffic ticket. For riders, a citation may give the insurance company a reason to push more fault onto them. For drivers hit by a motorcycle traveling between lanes, the rider’s violation can become important evidence in the claim. Either way, the insurance fight usually turns on the details: speed, lane position, traffic flow, witness statements, vehicle damage, and what each person did in the seconds before impact.

Our attorneys handle motorcycle injury claims across eastern Washington and have worked through the fault disputes that follow exactly this kind of crash. Riders and drivers in Moses Lake, Kennewick, and Spokane can reach us for a free consultation with no obligation to proceed.

Is Lane Splitting Legal in Washington? The Direct Answer

No. Lane splitting is illegal for everyday riders throughout Washington.

RCW 46.61.608(3) states: “No person shall operate a motorcycle between lanes of traffic or between adjacent lines or rows of vehicles.” The statute does not carve out an exception for congested traffic, slow-moving vehicles, or stopped traffic.

This law applies everywhere in Washington, including Spokane, the Tri-Cities, Moses Lake, and Kennewick. There is no city-by-city variation, no county exception. If a motorcycle is between lanes of traffic, the rider is in violation regardless of conditions.

What Lane Splitting, Lane Filtering, and Lane Sharing Mean in Washington

Three terms come up in this conversation. Only one describes something legal in Washington.

Lane Splitting

Lane splitting means riding between two rows of vehicles moving in the same direction. The motorcycle moves through the gap between lanes while surrounding traffic is in motion. RCW 46.61.608(3) expressly prohibits this. It is sometimes called white-lining.

Lane Filtering

Lane filtering means moving between stopped or slow-moving vehicles, often to reach the front of traffic at a red light. Some states have legalized limited versions of lane filtering. Washington has not.

Washington’s statute prohibits operating a motorcycle between lanes of traffic or between adjacent lines or rows of vehicles. That language covers the conduct most people call lane filtering. Lane filtering is illegal in Washington for everyday riders.

Lane Sharing

Lane sharing is the one form of same-lane motorcycle operation that Washington law expressly allows. Under RCW 46.61.608(1) and (4), up to two motorcycles may ride side by side within a single lane. Two riders traveling together, occupying the same lane abreast, are not in violation. Anything involving gaps between lanes of traffic or adjacent rows of vehicles is not.

What Happens If You Get Caught Lane Splitting in Washington

A lane-splitting citation is a traffic infraction in Washington. The fine matters, but it is usually not the biggest concern after a crash.

The larger risk is what can happen if the conduct goes beyond a traffic infraction. If a rider is riding aggressively while splitting lanes, the citation can be upgraded to reckless driving under RCW 46.61.500, which is a gross misdemeanor in Washington. A conviction can carry up to 364 days in jail, a fine of up to $5,000, and consequences for driving privileges. A traffic infraction and a gross misdemeanor are very different problems.

Beyond the immediate penalty, a citation goes on a driving record. Insurers review that record when pricing future coverage and when evaluating any injury claim that follows. Motorcycles already account for 16% of Washington traffic fatalities while representing just 3% of registered vehicles, according to the Washington Traffic Safety Commission. A lane-splitting citation signals elevated risk to an insurer, and that signal does not go away. Riders who were cited and then involved in a crash have a narrower window to get ahead of that record than most realize. A free consultation with McPartland Law Offices before the claim develops costs nothing and changes what options are still available.

How a Lane-Splitting Ticket Affects an Accident Claim Under Washington’s Comparative Fault Rule

A lane-splitting citation in the context of a crash is not just a traffic matter. It becomes a factor in how fault is divided between the parties, and fault division directly affects how much a person can recover.

Washington follows a pure comparative fault system under RCW 4.22.005. If you are found partially responsible for the crash, your recovery is reduced by your percentage of fault, but you can still recover damages unless you are 100% at fault.

That rule plays out differently depending on which side of the crash you were on.

• If you were the rider who was lane splitting: A citation gives the other driver’s insurance company evidence to assign a fault percentage to you. Even when another driver made an error that contributed to the crash, the citation can be used to argue that your own violation increased the risk. The result is a lower recovery percentage, sometimes significantly lower. The citation does not bar recovery entirely unless a court finds you 100% responsible, but it can sharply reduce what the insurance company pays.
• If you were a driver hit by a rider who was splitting lanes: The rider’s statutory violation is strong evidence of fault on their side. A rider who was in violation of RCW 46.61.608 at the moment of impact was engaged in conduct Washington law prohibits. That is a meaningful starting point for a fault allocation argument in your favor. The insurer for the rider cannot easily dismiss the relevance of the statutory violation.

The fault percentages matter more than most people realize at the time of the crash. Anything said to the insurance company before those percentages are understood can affect the outcome of a personal injury claim. Washington does not assign non-economic damages a fixed multiplier, but how pain and suffering is calculated is worth understanding before you respond to any adjuster. Our attorneys can walk through that with you in a free consultation.

Why Washington Has Not Legalized Lane Splitting

Washington has revisited this question more than once. The answer has not changed.

Efforts to legalize lane splitting or lane filtering in Washington go back at least to legislation introduced in the 2003-04 session that would have allowed lane splitting in congested traffic. It failed. Bills introduced in 2015 and 2017 followed a similar path. A 2019 proposal would have allowed lane splitting only when surrounding traffic moved at 10 mph or less and the rider did not exceed 25 mph. It also failed. A 2023 bill would have permitted lane splitting under speed-limited conditions. It did not pass.

California remains the most prominent jurisdiction where lane splitting is explicitly legal, operating under guidelines developed with the California Highway Patrol. Montana and Utah have adopted limited lane filtering under specific conditions. Washington legislators have seen those examples and repeatedly declined to follow them.

No active Washington law authorizes lane splitting or lane filtering in any form. Riders who have heard it is legal in other states or who assumed Washington follows California’s approach should know the prohibition here is current and unchanged.

Helmet Manufacturer Issues After a Lane-Splitting Crash

A lane-splitting crash can also raise questions about motorcycle gear. If a rider suffered a head injury, the helmet should be reviewed as part of the case.

Washington law requires motorcycle riders to wear helmets that carry the manufacturer’s certification under 49 C.F.R. § 571.218, showing that the helmet meets United States Department of Transportation standards. That does not mean every helmet works the way it should in a real crash. A helmet may have a design problem, a manufacturing defect, a retention system failure, or missing warnings that affected the rider’s injuries.

These cases may involve a product liability claim in addition to the crash claim. The helmet, strap, shell, padding, impact damage, purchase records, and manufacturer information should be preserved. Throwing the helmet away or letting an insurance company take it too early can make it harder to prove what happened.

Why Choose McPartland Law Offices for Your Motorcycle Accident Case

When you are in a crash that involves a lane-splitting dispute, every statement you make matters. The traffic citation, the accident report, and anything said at the scene all go into the insurer’s review. The fault percentages that come out of that process can affect how much money changes hands, which insurer pays, and how much each side may be able to recover.

Riders and drivers across eastern Washington have brought those cases to McPartland Law Offices since 2012. Our attorneys, Bryce McPartland and Bryton Redal, have recovered more than $50 million for clients and earned more than 350 five-star reviews. We have offices in Moses Lake, Kennewick, and Spokane.

McPartland Law Offices handles personal injury cases on a contingency fee basis, which means you do not pay legal fees unless we recover compensation for you. Free consultations are available with no obligation to proceed.

Client Testimonials

“McPartland Law Office was attentive, compassionate, and truly went the extra mile for our family after our horrific accident. They protected our rights every step of the way and made a difficult time much easier to navigate. We are incredibly grateful and highly recommend them to anyone needing strong, caring representation.” — Paul M.

“When all others wouldn’t take or wanted nothing to do with my case, he took it and stuck with it and saw it through til the end. Bryce also was determined to get me what I deserved. He always was honest and held nothing back. He also kept my husband and I very informed and was very professional. My family and I are thankful for his hard work and determination on my case and believed in my case. I would recommend him to all anybody who needs legal help. Thank you again Bryce.” — Joey J.

“McPartland Law Office is great! Everyone will work tirelessly to help you & accomplish whatever needs to be done! Highly recommend using McPartland Law.” — Margaret S.

Frequently Asked Questions About Lane Splitting in Washington

Is Lane Filtering Legal in Washington?

No. Lane filtering, which means moving to the front of stopped vehicles at a red light, is prohibited under RCW 46.61.608. The statute does not distinguish between filtering and splitting. Both involve operating a motorcycle between lanes or rows of vehicles. Despite being legal in some form in Utah and Montana, lane filtering is not permitted in Washington.

Can Two Motorcycles Ride in the Same Lane in Washington?

Yes, with a limit. Under RCW 46.61.608(1) and (4), up to two motorcycles may ride abreast within a single lane. Riding side by side with one other motorcycle is the one form of same-lane operation Washington law expressly allows. Three motorcycles abreast in a single lane is not permitted.

Will My Insurance Pay If I Crashed While Lane Splitting?

Recovery may still be possible, but a lane-splitting citation can reduce what you recover. Under Washington’s pure comparative fault rule, your recovery is reduced by your percentage of fault. For example, a rider found 30% at fault would recover 70% of the damages proven. The exact reduction depends on how fault is allocated between everyone involved. A rider is not automatically barred from recovery unless found 100% responsible.

Is Washington Considering Legalizing Lane Splitting?

No active Washington law authorizes lane splitting or lane filtering for everyday riders. Lawmakers have considered related motorcycle traffic proposals in past sessions, including a 2023 right-shoulder bill, but those proposals did not change the current law. The law remains unchanged: lane splitting and lane filtering are prohibited.

How Long Do I Have to File a Motorcycle Accident Claim in Washington?

Washington generally gives injured people three years from the date of the accident to file a personal injury lawsuit under RCW 4.16.080. Some exceptions may apply, including cases involving minors or certain incapacity issues. Waiting can make it harder to preserve evidence, obtain witness statements, and document the helmet, motorcycle, and vehicles involved.

Speak With a Washington Motorcycle Accident Lawyer Before Giving a Statement

A call with the insurance company can affect your claim before you understand how fault will be argued. The record of that conversation can follow the case.

McPartland Law Offices offers free consultations to riders and drivers involved in motorcycle crashes across eastern Washington. We serve clients from our offices in Moses Lake, Kennewick, and Spokane. Call McPartland Law Offices at 509-495-1247 or fill out our contact form to discuss your claim.