Motorcycle lane splitting laws vary widely by state. Only California fully allows lane splitting, while five states permit the slower practice of lane filtering. However, most states ban lane splitting entirely, including Alabama.
What is Lane Splitting, and How Is It Different From Lane Filtering?
People often use “lane splitting” and “lane filtering” interchangeably, but the law treats them differently. A state may allow filtering but ban splitting, so what is legal at a stoplight may be illegal on a moving freeway.
Lane Splitting
Lane splitting means riding a motorcycle between lanes of moving traffic, usually on a highway. The rider travels faster than the surrounding cars to move through traffic.
Lane Filtering
Lane filtering means moving between lanes of stopped or very slow traffic, usually at a red light or in gridlock. The rider moves slowly, and the nearby cars barely move.
Lane Splitting Motorcycle Laws by State
Lane splitting laws differ dramatically from state to state, and they keep changing as more states pass filtering bills.
California
California is the only state that fully allows lane splitting through moving traffic, under California Vehicle Code § 21658.1. Five other states allow the slower practice of lane filtering, each with its own speed limits.
| State | What It Allows |
|---|---|
| California | Full lane splitting (moving traffic) |
| Utah, Arizona, Colorado | Lane filtering (stopped traffic, low speed) |
| Montana | Lane filtering (slightly higher speeds) |
| Minnesota | Filtering and limited slow-traffic splitting |
Other States
Most states either ban lane splitting outright or have no law, which usually means police treat it as illegal. These laws change often, so you should confirm the current rule in your state before riding.
Is Lane Splitting Legal in Alabama?
No, Alabama does not allow lane splitting or lane filtering. Riding between lanes of traffic is illegal in the Yellowhammer State.
In Alabama, lane splitting does more than risk a citation. If you split lanes and a crash happens, the insurance company will argue you caused it. Our motorcycle accident attorneys see insurers use this argument regularly.
Plus, a rider who splits lanes before crashing may struggle to recover compensation, even if the other driver is at fault.
Read our guide on hiring an Alabama motorcycle accident attorney to learn more.
How Lane Splitting May Affect Your Injury Case
Whether lane splitting was legal where your crash happened can shape your entire claim. Fault sits at the center of the question.
If you split lanes in a state that prohibits it, the other driver’s insurer will try to blame you. In states that follow comparative negligence, that blame can shrink your payout. In Alabama, which follows strict contributory negligence, even 1% responsibility could bar your recovery completely.
Lane splitting does not automatically make you responsible. If a driver makes an illegal lane change and strikes you, that driver may still bear responsibility. Our guide on what to do after a motorcycle accident walks you through the next steps.
Frequently Asked Questions About Motorcycle Lane Splitting Laws
What is lane splitting?
Lane splitting is the practice of riding a motorcycle between lanes of traffic moving in the same direction. Motorcyclists usually split lanes to pass slow or stopped cars, especially in heavy traffic. Most American states ban lane splitting.
Is lane splitting legal?
Whether or not lane splitting is legal depends on your state. California is the only state that fully allows lane splitting. Five others allow lane filtering under strict conditions. Riding illegally between lanes can lead to a ticket and hurt any injury claim.
Which states allow lane splitting?
As of 2026, six states allow some form of lane splitting. California permits full lane splitting through moving traffic. Utah, Montana, Arizona, Colorado, and Minnesota allow lane filtering between stopped or slow traffic. Always confirm the current rule before you ride.
What is the difference between lane splitting and lane filtering?
Lane splitting means riding between lanes of moving traffic, usually on a highway. Lane filtering means moving between stopped or very slow traffic. The key difference is whether the surrounding traffic is moving. Many states that ban lane splitting also don’t allow filtering.
Is lane splitting legal in Alabama?
No, Alabama prohibits lane splitting and lane filtering under Ala. Code § 32-5A-242. This law bars motorcycles from passing in the same lane or riding between lanes of traffic. Violating this law could risk your claim.
Trust Alexander Shunnarah Trial Attorneys Today
Insurance companies love to blame motorcyclists, especially in lane splitting crashes. We know how to fight back, gather the evidence, and protect your right to recover. When a negligent driver hurts you, we hold them accountable. Schedule a free case review today.
Reviewed by Alexander Shunnarah, Attorney and Chief Executive Officer at Alexander Shunnarah Trial Attorneys, on 2026-09-14.
