State detail · MT
Montana ATV / UTV / OHV Laws
A single-page reference for registration, helmet, age, and reciprocity rules in Montana. Every claim links to the state code or DNR source it was drawn from.
Last verified . Confirm critical details with Montana DNR before riding.
Quick reference
Registration & title
- Registration required
- Yes
- Title required
- Varies / unverified
- Fee
- —
- Renewal cycle
- —
- Nonresident permit
- Required
MCA 23-2-804: OHVs must be registered with the state and display a current decal to ride on public lands. Motorcycles used exclusively off-road do not need registration. Nonresidents must also register / display a decal.
Helmet & safety gear
- Helmet tier
- Under 18
- Eye protection
- Varies / unverified
MCA 61-9-417: operators and passengers under 18 must wear DOT-approved helmets.
Minimum age & supervision
- Min age unsupervised
- 16
- Supervised-minor age
- 12
- Safety course required
- Required
- Private-land carveout
- Yes
Where to ride
Montana's authoritative trail-status source. Confirm before riding.
Verified public OHV trail systems
Major public-access ATV / UTV / OHV trail systems in Montana, sourced from state DNR, federal-agency, or trail-system official sites. Confirm trail status, seasonal closures, and permit requirements with each authority before riding.
Big Snowy Mountains OHV trails
U.S. Forest ServiceLewis & Clark National Forest; designated motorized trail system across the Judith and Musselshell ranger districts in central Montana.
Custer Gallatin National Forest OHV system
U.S. Forest ServiceCuster Gallatin NF; designated OHV trails across the Beartooth, Sioux, and Ashland ranger districts — motor vehicle use map (MVUM) governs current trail-by-trail designations.
BLM Montana / Dakotas OHV areas
BLMBLM Montana-Dakotas State Office; OHV designations on public lands across eastern and southwestern Montana — most BLM lands are 'limited to designated routes' under current travel-management plans.
Montana FWP off-highway-vehicles directory
State DNRMontana Fish, Wildlife & Parks statewide OHV information page — registration / decal rules under MCA 23-2-804 and links to state-park, USFS, and BLM ride areas.
Official Montana resources
Neighboring states
Trip planning across state lines — confirm registration, helmet, and age rules in each before crossing, or open a side-by-side comparison.
Topic guides
Reference explainers and typologies that sit alongside the per-axis state atlases — vehicle category, where you can ride, by rider, and what to check before a trip.
Vehicle category & paperwork
ATV / UTV / OHV glossary
Terminology dictionary — every abbreviation a state DNR page or OHV statute uses (ATV / UTV / SxS / ROV / LSV / NEV / OHV / ORV / OHRV / MPOHV / WATV / Class I-III / green-sticker / T-recoded VIN and more).
State DNR / OHV agency directory
50-state lookup for the agency that handles ATV / UTV / OHV permitting — name, phone, OHV program URL, sticker / reciprocity links. Call the state, not Google.
UTV vs ATV vs side-by-side
How states classify the OHV family — and when the category swaps a helmet, age, or registration rule.
Street-legal conversion by state
Four state pathways for putting an OHV on the road — DMV-plate full conversion, DNR on-road permit, local-option designation, or no pathway. Per-state matrix.
Title requirements by state
Which states title an OHV, which only register, and which transfer on bill of sale — with issuing-agency, machine-class, and vintage-cutoff notes.
Street-legal conversion (typology)
When and where an OHV becomes legal on public roads — federal LSV vs state OHV-on-road permit.
Title from a bill of sale
Four legal paths from a bill-of-sale-only purchase to a state-recognised title certificate.
Lost title recovery
Five recovery paths sorted by who the titleholder is, whether a lien is on it, and what's missing.
Where you can ride
ATV on the road shoulder
Crossing-vs-traveling, agricultural exemptions, and the federal Interstate carveout.
Federal & tribal lands
BLM, USFS, NPS, USACE, and tribal nations — five jurisdictions and what rule each carries.
ATV / OHV trail directory by state
State DNR, USFS, BLM, private, and tribal public-access trail systems across all 50 states — with operator authority and trail-system source.
50-state OHV trail-pass matrix
Per-state season structure (year-round / spring → fall / winter-shared / closure-default), nonresident requirement, and DNR pass page for every state.
Seasonal trail-pass calendar (explainer)
Four DNR season structures and how to spot which one your state runs before buying the pass.
By rider
Kids on ATVs by state
Parental-decision atlas — minimum age, supervision rules, engine-class tiers, safety-course requirement, and private-land carveouts.
ATV safety course by state
Who needs to take a course — under-age statutory mandates, ASI ATV RiderCourse / E-Course nationwide, and state-DNR-run alternatives that don't accept ASI.
Helmet certifications — DOT vs Snell vs ECE
Three standards cover every US-market helmet. What each one tests, which combination clears a state-law inspection, and the five novelty-helmet warnings every buyer should read.
Trip planning
Multi-state trip planner (tool)
Pick the states on your route — get a per-stop compliance card for registration, helmet, age, nonresident permit, and reciprocity. Free, no signup.
Compare two states side-by-side
121 adjacent-state pair pages — registration, helmet, age, and reciprocity lined up row-by-row for trailering across the line.
Cross-state trailering checklist
Five paperwork buckets and five compliance gotchas before you trailer across a state line.
State-to-state reciprocity
Four state approaches to out-of-state OHV recognition — and what each means for nonresidents.
ATV insurance requirements
Four state approaches plus four insurance products — and where each one leaves a coverage gap.
ATV insurance cost by state
Six drivers that move the premium and four state regimes that set the floor — plus where to actually get a real quote.
DUI on an ATV
How state codes treat off-highway impaired operation — four jurisdictional patterns.
Winter storage & spring re-commissioning
Nine-step winterization checklist and five-step spring wake-up — for the eight northern states where the trail season closes for winter.