Montana Facts

The information below is updated periodically but things often change between updates. Do not rely on this information without checking with another source.

If you see an error, let us know at nma@motorists.org

Points of Interest
An acceptable definition of "nightime" is that it's nighttime if you need a light (dome light, flashlight, etc.) to read your watch.

Speed Limits
Unless Otherwise Posted
Absolute


Road Type	Car	Truck
Urban	25 mph	25 mph
Rural	70 mph (day) 65 mph (night)	60 mph (day) 55 mph (night)
Interstate	75 mph	65 mph

Speed Limits Enforcement Techniques
Enforced through use of:


Pacing	Yes
Radar	Yes
Vascar	No
Photo Radar	No
Aircraft	Yes
Laser	No

Tickets
Tickets can be paid by mail or in person.

Trial By Declaration Allowed
Yes

Jury Trial Allowed


Speeding	Yes
Parking	Yes
Equipment	Yes
DWI	Yes

Member of Nonresident Compact
No

Member of Driver License Compact
Yes

When and Where to File Accident Reports
Accidents involving death, personal injury, or apparent property damage exceeding $250 must be reported immediately to the local authorities or to the Montana Highway Patrol and within 10 days in writing to Montana Highway Patrol Headquarters.

Resident Insurance Requirements
Compulsory insurance law.

Minimum limits (liability only): $25,000/50,000/10,000.

Regulations

Open intoxicants are permitted in the vehicle.
The BAC level is .08%. Under age 21 the BAC level is .02%.
Montana does not have an administrative license suspension law, but does have an implied consent law. The breathalyzer refusal penalty is a 6-month driver's license suspension.
Loaded firearms may be carried in plain view in passenger compartment or secured in commercial gun cases.
Studded tires are permitted from October 1 to May 31.
Tire chains are required when posted.
Montana has a seat belt law with secondary enforcement for all occupants.
Montana has a mandatory child restraint law for passengers under 6 years of age or 60 pounds. All children must use approved car safety seats.
Montana has a mandatory motorcycle helmet law for persons under 18 years of age.
Registration and insurance card must be carried in the vehicle.

General Information
Telephone: 406/444-3780 or 406/444-7000
Emergency Cellular Phone Number: 800/525-5555