Is Lane Splitting (Motorcycles) Legal in Montana? (2026)
No — Lane Splitting (Motorcycles) is illegal in Montana as of 2026.
Quick Answer
Montana does not permit lane splitting. Motorcycles must operate within a single lane and are prohibited from riding between lanes of traffic. No statute explicitly authorizes lane splitting, and it is considered unsafe and illegal.
What the Law Says
Montana law allows for lane filtering, where a motorcycle can pass between stopped or slow-moving vehicles traveling at 10 mph or less. Lane splitting in moving traffic remains illegal.
— Montana Code Annotated 61-6-102
| Category | Details |
|---|---|
| Lane Splitting Rules | N/A |
| Lane Filtering Rules | N/A |
| Traffic Penalties | Violations may be charged under reckless driving or unsafe lane usage statutes, with fines and possible license points. |
| License Requirements | None |
| Pending Legislation | None known |
No significant changes since 2023.
Enforcement Reality
Enforcement of lane splitting laws in Montana is strict, with officers often citing general traffic safety statutes.
A common mistake in Montana is riders assuming that filtering in slow or stopped traffic is permissible, which is generally not the case.
Local Exceptions
None identified. State law applies uniformly across Montana. Local ordinances may still vary — check with your city or county government for any additional rules.
Bottom Line
Lane Splitting (Motorcycles) is illegal in Montana. This activity can result in criminal charges. Do not assume enforcement is lax — penalties are real. Consult a licensed attorney if you have specific questions.
Montana vs. the Rest of the US
Across the US, lane splitting on a motorcycle is fully legal in 1 states, restricted in 3, and illegal in 46. Montana falls in the ILLEGAL category.
View the full 50-state map →Reviewed by cross-referencing the cited state statute against current legislative databases and regulatory publications.
Sources & Verification
This page was reviewed by Ethan Harper by comparing the legal status against the cited state statute. AllowedHere is an informational resource and does not provide legal advice. Consult a licensed attorney for guidance specific to your situation.
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