Montana Laws and Incentives for Driving / Idling

The list below contains summaries of all Montana laws and incentives related to Driving / Idling.

Laws and Regulations

Low-Speed Electric Vehicle (EV) Access to Roadways

A low-speed EV may operate only on highways with posted speed limits up to 25 miles per hour (mph) and may not cross a highway with a posted speed limit greater than 45 mph. A low-speed EV may reach speeds of at least 20 mph but not more than 40 mph and may only be operated by a person with a low-speed restricted driver's license. A low-speed EV must be in compliance with Title 49 of the Code of Federal Regulations, section 565. (Reference Montana Code Annotated 61-1-101)

Medium-Speed Electric Vehicle (EV) Access to Roadways

A medium-speed EV may operate only on highways with posted speed limits up to 45 miles per hour (mph). A medium-speed EV must be treated as a light-duty vehicle for purposes of titling and registration. A medium-speed vehicle is a vehicle that has a maximum speed of 45 mph, a gross vehicle weight rating of 5,000 pounds or less, and is in compliance with Title 49 of the Code of Federal Regulations, section 565. (Reference Montana Code Annotated 61-1-101 and 61-8-377)