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Montana
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Alerts
No major alerts at this time.
Construction/Conditions 
800-226-7623
Federal Highway Admin
406-449-5302
Cell Emergency Number
911
Time Zone
Mountain
Speed Limits
Rural Interstates Cars: 75, Trucks: 65
Urban Interstates Cars: 65, Trucks: 65
Other Roads Cars: day: 70, night: 65, Trucks: day: 70, night: 65
Urban Interstates Cars: 65, Trucks: 65
Other Roads Cars: day: 70, night: 65, Trucks: day: 70, night: 65
Work Zone Special Limits
All, Minimum double original fine, Workers Must Be Present, Signs Must Be Present
Rest Area Overnight Parking
Overnight is Permitted
State Handheld Device Ban
No
State Texting Ban Laws
No
Seat Belt Laws
>6 in All Seats, $20
Sobriety Checkpoints
No, Statute permits only safety spotchecks
High Blood Alcohol Content
0.16
Open Container Law
Yes
Motorcycle Helmet Laws
under 18
Bicycle Helmet Laws
no law
Gun Law Simple Summary
No permit required
Shoot First/Stand Ground Law
Yes - Law permits deadly force in public places with no duty to retreat
Radar Detectors
Legal
Diesel Tax (State and Federal)
0.53
Truck Access Policies
unlimited mi
Triple Towing
Yes
Tow Brake Laws Towing
3,000 lbs - auxiliary braking system is required
See Restricted Routes See Hazmat Routes See Idling Laws
