Montana Speed

speed sign from old MDOT site

From December 8, 1995 to May 28, 1999 Montana's daytime automobile speed limits were "reasonable and prudent", according to interpretation by Highway Patrol officers. Fines were increased and motorists were advised to drive carefully according to existing weather and road conditions. American speed enthusiasts were delighted and the state's Interstate highways got a reputation as the Montanabahn. Congress was not amused, and neither were many Montana residents. With a little help in potential Federal funding restrictions, speed limits were restored. Montana's maximum speed limit is now 75 MPH on the Interstates - check with Montana DOT for current speed limits, road condtions, etc.

1995 - 1999 Speed Limit Table


Daytime
Speed Limit
Nightime
Speed Limit
Change due to NHS Act
Trucks over 8000 lbs.
Interstate
All Other Roads

65 MPH
60 MPH

65 MPH
55 MPH
No Change
All Other Vehicles (See Exceptions)
Interstate
All Other Roads

Basic Rule *
Basic Rule *

65 MPH
55 MPH
Daytime Only
Exceptions:
(All Roads Included)
Triple Truck Combo
House Trailers
Construction Zones
(All Vehicles Apply)


55 MPH
50 MPH
35 MPH
(or As Posted)


55 MPH
50 MPH
35 MPH
(or As Posted)
No Change
Special Speed Zones and
Urban Area Limits
As Posted
As Posted
No Change

* Speed enforcement for passenger vehicles and trucks under 8000 lbs. were governed by MCA 61-8-303(1) or the "Basic Rule". This Law states that vehicles shall be driven in a reasonable and prudent manner depending on the conditions at the time and place of operation. Conditions considered in enforcement include: traffic pattern, vehicle condition, and roadway and weather conditions.

Other 1995 speed limit information:
What was Reasonable and Prudent?
What were the Speed Related Traffic Laws and their Fines?


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