Is Lane Splitting Legal in Missouri? What the Statutes Actually Say
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Last reviewed: October 18, 2026. This article is general information, not legal advice. Missouri traffic law can change when the General Assembly passes new bills; check the Revised Statutes of Missouri before you ride.
If you ride in Missouri, you may have heard that lane splitting is a gray area. Part of the reason is that Missouri, unlike its neighbors, has no statute that uses the words "lane splitting." That does not make it legal. For other states, see our guide to what states lane splitting is legal in.
Short answer: Is lane splitting legal in Missouri? No. Missouri has no law that permits it, and the general rules on staying in your lane (RSMo 304.015) and on passing (RSMo 304.016) make riding between rows of cars illegal. Lane filtering at lights is not allowed either. Bills to legalize filtering were filed in 2024 and 2025 but died in committee, and violations are misdemeanors, not just infractions.
Why it is illegal without a named ban
States like Washington and Florida have a sentence that says "no person shall operate a motorcycle between lanes of traffic." Missouri doesn't. Instead, three general rules do the work:
- Stay in one lane. On roads with three or more marked lanes, which covers multi-lane highways and most busy city arterials, 304.015.5(1) says a vehicle "shall be driven as nearly as practicable entirely within a single lane." A motorcycle on the line between two lanes is not within a single lane.
- Pass on the left, at a safe distance. Under 304.016.1(1), you pass "to the left" of the vehicle you are overtaking "at a safe distance." Squeezing past a car's side mirror is neither.
- Pass on the right only in listed situations. Section 304.016.2 lets a driver pass on the right only when the other vehicle is turning left, on a city street with "unobstructed pavement" wide enough for two or more lines of vehicles in each direction, on a highway outside a city with unobstructed pavement marked for four or more lines of traffic, or on a one-way street, and only "when such movement may be made in safety." It adds: "In no event shall such movement be made by driving off the paved or main traveled portion of the roadway." Passing between two lines of occupied lanes is not passing in unobstructed pavement.
Section 304.016 uses the general term "vehicle," and a motorcycle is a vehicle, so these rules apply to riders just as they do to cars.
Splitting, filtering and lane sharing in Missouri
| Practice | What it means | Legal in Missouri? |
|---|---|---|
| Lane splitting | Riding between lanes of moving traffic | No. Breaks the single-lane rule (304.015.5) and the passing rules (304.016) |
| Lane filtering | Moving between stopped or slow cars, usually to reach the front at a light | No. No statute allows it; proposed § 304.039 was never enacted |
| Shoulder riding | Using the shoulder to pass a jam | No. Passing on the right may never be done "by driving off the paved or main traveled portion of the roadway" (304.016.2) |
| Cars sharing a lane with a motorcycle | A car squeezing into the rider's lane | Not allowed in practice; the Driver Guide says the motorcyclist needs the entire lane |
Penalties: these are misdemeanors
Missouri treats these lane and passing violations more seriously than many states:
| Statute | Classification | Maximum penalty |
|---|---|---|
| 304.015 (lane use) | Class C misdemeanor; class B if it causes an immediate threat of an accident; class A if an accident results | Class C: 15 days in jail, $750 fine. Class B: 6 months, $1,000 |
| 304.016 (passing) | Class C misdemeanor | 15 days in jail, $750 fine |
| 304.012 (careless and imprudent driving) | Class B misdemeanor; class A if an accident is involved | Class B: 6 months, $1,000 |
The jail maximums come from RSMo 558.011 and the fine maximums from RSMo 558.002. Most traffic tickets end with a fine rather than jail, but the classification matters because it is a criminal conviction.
Careless and imprudent driving is worth knowing about. RSMo 304.012 requires every driver to drive "in a careful and prudent manner" and to "exercise the highest degree of care." An officer who sees a rider weaving between lanes at speed may write this charge instead of, or as well as, a lane violation.
After a crash, riding between lanes can also affect who is found at fault and how much you can recover. If you have been hurt, our guide to choosing a motorcycle injury lawyer explains what to look for.
Missouri's lane filtering bills
Missouri lawmakers have tried to legalize filtering, but none of the bills got out of committee. We checked both on the Missouri House of Representatives website:
- HB 2032 (2024), sponsored by Rep. Doug Mann, "Allows motorcycles to operate between stopped and slow-moving lanes of traffic." Last action: May 17, 2024, referred to the General Laws committee. It did not pass.
- HB 705 (2025), sponsored by Rep. Eric Woods, with the same title. Last action: May 15, 2025, referred to the Emerging Issues committee. It did not pass.
HB 705 would have created a new section 304.039 allowing a motorcycle to pass "between the lanes of two vehicles being overtaken" at no more than 10 mph over the speed of traffic flow and no more than 25 mph. It also said: "Nothing in this section shall be construed as authorizing lane splitting." The Missouri Revisor of Statutes confirms that section 304.039 does not exist. We also found no similar bill in the 2026 House bill list. Senate bills were not part of our check, so look at the General Assembly's sites if you hear of a new proposal.
Riding Missouri traffic safely and legally
The Missouri Department of Revenue's Driver Guide (revised August 2026) gives this advice to riders and drivers:
- Drivers should not share your lane. "The motorcyclist needs the entire lane for safety reasons."
- Make sure motorists see you. The guide recommends bright clothing and staying out of other vehicles' blind spots.
- Signal and scan before every move. "Before merging, changing lanes, or turning, scan behind and in front to ensure that it is safe to make this maneuver."
- Give yourself room passing parked or moving vehicles. The guide recommends three to four feet of clearance "to avoid suddenly opened car doors or to allow for a vehicle to swerve."
In practice: stay in your lane, pass only in an open lane, and when traffic stops, leave room ahead so you have somewhere to go if a car behind you doesn't stop.
How Missouri compares
Missouri's approach is unusual because it relies on general rules rather than a named ban, but the result matches its neighbors. Illinois restricts motorcycles from passing without an open lane, and Texas has an express ban in § 545.0605. California is the only state that expressly allows lane splitting. See our state-by-state lane splitting guide for the rest.
Is lane splitting legal in Missouri?
No. Missouri has no statute that names lane splitting, but no law permits it either. RSMo 304.015.5(1) requires vehicles to stay as nearly as practicable within a single lane, and RSMo 304.016 limits when and how you may pass. Riding between rows of cars breaks those rules.
Is lane filtering at a red light legal in Missouri?
No. Bills to allow filtering (HB 2032 in 2024 and HB 705 in 2025) were referred to committee and never passed. Section 304.039, which HB 705 would have created, does not exist in the Revised Statutes of Missouri.
What is the penalty for lane splitting in Missouri?
It depends on the charge. A violation of 304.015 or 304.016 is a class C misdemeanor (up to 15 days in jail and a fine of up to $750). Under 304.015 it rises to a class B misdemeanor if it causes an immediate threat of an accident and a class A misdemeanor if an accident results.
Can police charge careless driving for splitting lanes?
They can if the riding was not careful and prudent. RSMo 304.012 requires every driver to exercise "the highest degree of care." A violation is a class B misdemeanor, or a class A misdemeanor if an accident is involved.
Can a car share my lane in Missouri?
It shouldn't. The Missouri Driver Guide tells drivers: "You should not share a lane with a motorcycle. The motorcyclist needs the entire lane for safety reasons."
Sources
- RSMo 304.015, Drive on right of highway, traffic lanes (Missouri Revisor of Statutes)
- RSMo 304.016, Passing regulations (Missouri Revisor of Statutes)
- RSMo 304.012, Careful and prudent operation (Missouri Revisor of Statutes)
- RSMo 558.011, Sentences of imprisonment (Missouri Revisor of Statutes)
- RSMo 558.002, Fines (Missouri Revisor of Statutes)
- HB 705 (2025) bill page (Missouri House of Representatives)
- HB 705 (2025) introduced text (Missouri House of Representatives)
- HB 2032 (2024) bill page (Missouri House of Representatives)
- Missouri Driver Guide (Missouri Department of Revenue)
About Farrukh Shahzad
Farrukh Shahzad is the founder and researcher behind TodayinTrend. He is not a lawyer and does not give legal advice — he reads the statutes, court rules and official data, then explains what they actually say in plain English.
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