ATVs are a popular choice for off-road adventures in Montana’s rugged landscapes. But can you ride your ATV on public roads? What are the requirements to make an ATV street legal in Montana? This guide covers everything you need to know about Montana street legal ATV laws, registration, equipment requirements, and riding tips.
What Is a Street Legal ATV?
A street legal ATV is an all-terrain vehicle that meets the state’s requirements to be driven on public roads. While ATVs are designed for off-road use, certain modifications and paperwork can make them street legal in Montana. This allows riders to use their ATV not just on trails but also for commuting short distances within towns or connecting trail systems.
Are ATVs Street Legal in Montana?
In Montana, ATVs are generally not allowed on interstate highways but can be made street legal for use on certain public roads. According to the Montana Department of Justice Motor Vehicle Division, ATVs and UTVs can be registered for on-highway use if they meet specific equipment and safety requirements.
How to Make Your ATV Street Legal in Montana
Here is a clear step-by-step process to make your ATV street legal in Montana:
1. Ensure Your ATV Meets Equipment Requirements
Your Montana street legal ATV must have:
- Headlights
- Taillights
- Brake lights
- Turn signals
- Rear-view mirrors
- A horn audible from at least 200 feet
- A muffler that meets noise standards
- A windshield (or riders must wear protective eyewear)
Without these, your ATV will not pass the street-legal inspection.
2. Get Your ATV Inspected
Before registering your ATV for on-highway use, an inspection by an authorised agency or motor vehicle division office is required. This ensures all equipment meets safety standards.
3. Obtain an On-Highway Registration
You need to apply for registration with the Montana Motor Vehicle Division. The registration process includes:
- Completing the Application for Certificate of Title for a Vehicle
- Providing proof of ownership
- Paying registration fees and taxes
Once registered, your ATV will receive a license plate for legal road use.
4. Carry Insurance
Montana requires liability insurance for all street-legal vehicles, including ATVs. Contact your insurance provider to add on-highway coverage for your ATV.
5. Understand Local Rules
Even if your ATV is street legal, some counties or municipalities may have restrictions. Always check local ordinances before riding your ATV on public roads.
Montana ATV Laws: Key Points to Remember
- Riders under 18 must wear a helmet.
- All riders must follow standard traffic laws when riding on streets.
- ATVs are not allowed on interstate highways.
- Use of public roads is generally limited to connecting trails or within areas that permit ATV road use.
Benefits of Making Your ATV Street Legal
✅ Greater Convenience
If your ATV is street legal, you can ride from your home directly to trails without a trailer, saving time and hassle.
✅ Enhanced Versatility
A Montana street legal ATV can be used for short commutes, errands in small towns, or working on ranches and farms that require on-road travel.
✅ Increased Resale Value
Street-legal ATVs have higher market demand and resale value, as buyers appreciate the added utility.

Best ATV Trails in Montana
While making your ATV street legal offers flexibility, Montana’s off-road trails remain the main attraction. Here are some popular trails to explore:
1. Pipestone Trail System
Located near Butte, this area offers over 75 miles of trails suitable for ATVs, with varying difficulty levels and scenic views of the Tobacco Root Mountains.
2. McKelvey Lake Trail
Found in Gallatin National Forest, this trail offers moderate terrain and beautiful lake views, perfect for a full-day adventure.
3. Mount Helena Ridge Trail
This trail provides challenging climbs and technical sections for experienced riders, along with panoramic views of Helena.
Safety Tips for Riding Your Street Legal ATV
- Wear Protective Gear
Even on streets, wearing helmets, gloves, long sleeves, and boots reduces injury risks.
- Stay Visible
ATVs are smaller than cars. Use your headlights during the day and wear reflective clothing to increase visibility.
- Obey Speed Limits
Stick to posted speed limits. Remember, your ATV is not designed for highway speeds even if it’s street legal.
- Ride Defensively
Be cautious of other vehicles. Many drivers may not expect to see an ATV on the road.
- Avoid Riding on Busy Roads
Even if legal, it is safer to use less crowded roads to minimise accident risks.
Common Questions About Montana Street Legal ATV
Can I ride my ATV on city streets in Montana?
If your ATV is registered as street legal and meets all equipment requirements, you can ride on city streets where allowed. However, always check with local city ordinances.
Do I need a driver’s license to ride a street legal ATV in Montana?
Yes. Riders must have a valid driver’s license to operate an ATV on public roads in Montana.
Is it expensive to make an ATV street legal?
Costs include installing required equipment ($500-$1,500), inspection fees, registration fees, and insurance premiums. The total cost varies by ATV model and chosen equipment.
Final Thoughts
Making your ATV street legal in Montana expands its use beyond off-road adventures, letting you ride seamlessly from home to trail. However, you must ensure it meets all equipment, registration, and insurance requirements to ride legally and safely.