Montana Motorcycle Endorsement Practice Test 2025

No. Montana law (MCA 61-9-417) requires helmets only for motorcycle riders and passengers under age 18. Adults 18 and older are not legally required to wear a helmet. Montana is one of a small number of states without a universal adult helmet law. DOT-approved helmets substantially reduce head injury severity and fatality rates, and the MVD motorcycle manual strongly recommends their use regardless of the legal requirement.

Yes. Montana's lane filtering law (MCA 61-8-392) permits motorcyclists to filter past vehicles that are stopped or traveling at 10 mph or less, provided the motorcyclist is traveling at 20 mph or less while filtering. This applies only when target vehicles are very slow or stopped. Lane splitting — riding between moving traffic lanes at normal speeds — remains illegal in Montana. Filtering and splitting are legally distinct under Montana law.

Montana law (MCA 61-8-359) requires motorcycle headlights to be on at all times when the motorcycle is in operation — both day and night. Daytime headlight use makes motorcycles more visible to other drivers. This is a strict always-on requirement, not just a sunset-to-sunrise rule.

No. Montana does not require motorcycle liability insurance by law. This distinguishes Montana from most states, which mandate minimum liability coverage for motorcycle operation. However, motorcyclists remain personally financially responsible for any damages or injuries they cause in a crash. Riding without insurance exposes the rider to potentially unlimited out-of-pocket liability. Carrying insurance is strongly recommended even though it is not legally required.

No. In Montana, completing an approved MSF Basic RiderCourse waives the skills (road) test only. The written motorcycle knowledge test at the MVD is still required regardless of MSF course completion. The knowledge test covers Montana-specific motorcycle laws, DUI rules, lane filtering, helmet law, and safe riding techniques.

Montana's DUI law applies to motorcycle operators. The BAC limit is 0.08% for riders 21 and older and 0.02% for riders under 21. Montana uses DUI terminology. Montana's implied consent law requires all operators (including motorcyclists) to submit to chemical testing if lawfully arrested for DUI — a first refusal triggers an administrative license suspension of up to one year.

Montana permits up to two motorcycles to ride side by side (abreast) in a single lane. Three or more motorcycles abreast in one lane is not permitted. Lane splitting — riding between lanes of traffic — is separately prohibited (though lane filtering past stopped/very slow vehicles is now legal under MCA 61-8-392).

To obtain a Class M motorcycle endorsement on a Montana driver's license, applicants must pass the MVD motorcycle knowledge test and a skills (road) test, or complete an approved MSF Basic RiderCourse which waives the road test (knowledge test still required). The endorsement is added to the existing Montana driver's license. Montana recommends all new riders complete the MSF course for the structured safety training it provides.

Montana's under-21 DUI BAC limit is 0.02%. Any BAC at or above 0.02% constitutes a per se DUI violation for motorcycle riders under 21 — significantly stricter than the adult 0.08% standard. Given that motorcycles require precise balance and coordination, even small amounts of alcohol pose serious risks for young riders.