Montana window tint law 2020 (MT)

On this page we have done our best to collect all of the legal information necessary about your car’s window tint, including how dark the tint is allowed to be and how reflective the tint is allowed to be in Montana. Aside from the basics, like tint percentages, there are also additional car window tinting rules and regulations in Montana that we have made available.

Car window tinting laws in Montana were first put into place in 1991 with Montana being the 13th of the 50 states to enact these tinting laws.

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Montana Tint Laws - What does VLT Mean according to Montana State Law

The percentage of light that a window tint film allows to pass through your car windows is called the VLT (Visible Light Transmission), and each state has different legal allowable limits. The amount of light allowed to pass through your film and glass in Montana is very specific to the state and is different for Passenger Vehicles and Multi-Purpose Vehicles.

A HIGHER VLT means that more light is allowed to pass through the window tint film.

Example: a 75% tint will allow 75% of the light to pass through whereas a 5% tint will only allow 5% of the light to pass through, making the 5% tint a much darker film.

What is the Legal Tint Darkness Allowed For Passenger Vehicles In Montana:

  • Front Windshield: Non-reflective tint is allowed above the manufacturer’s AS-1 line.
  • Front seat side windows: up to 24% tint darkness allowed
  • Back seat side windows: up to 14% tint darkness allowed
  • Rear window: up to 14% tint darkness allowed 

What is the Legal Tint Darkness Allowed For Multi-Purpose Vehicles In Montana:

  • Front Windshield: Non-reflective tint is allowed above the manufacturer’s AS-1 line.
  • Front seat side windows: up to 24% tint darkness allowed
  • Back seat side windows: Any tint darkness can be used
  • Rear window: Any tint darkness can be used 

Other Montana Window Tint Rules And Regulations:

Montana has a few other important things that you will need to consider regarding window tinting and we recommend that you check them out before deciding whether or not you tint your windows:

  • Side Mirrors: No restrictions on side mirrors in Montana.
  • Window Tint Color Restrictions: All tint colors except Red, Amber and Yellow are allowed in Montana
  • Certifications: Manufacturers of film do NOT need to certify the film they sell in the state.
  • Stickers: State law recommends but does not require stickers to identify legal tinting.
  • Medical Exceptions: Montana allows medical exemptions for special tint. For more details about the specific terms of the exemption, consult your state law.
  • Penalties: Misdemeanor with up to $500 fine and/or up to 6 months in county jail (Montana law 46-18-212).

Always remember that the laws can change on a daily basis and these rules and regulations may be interpreted differently on a city to city or county to county basis. We recommend double-checking the information contained on this website with your local DMV or local law enforcement agencies for accuracy. This information relating to window tint laws in Montana was last updated on January 27th, 2020. Tinting laws in Montana were enacted in 1991. In case any of our info provided is not up to date or correct be sure to contact us so we can fix it. Thanks!

Montana Automotive Window Tint Law References

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Montana Window tint Medical Exemption References

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State of Montana Information

Montana is a state in the Western United States. Montana is ranked 4th in size, but 44th in population and the 48th in population density of the 50 United States. The economy is primarily based on agriculture, including ranching and cereal grain farming. Other significant economic activities include oil, gas, coal and hard rock mining, lumber, and the fastest-growing sector, tourism. The health care, service and government sectors also are significant to the state’s economy. Millions of tourists annually visit Glacier National Park, the Little Bighorn Battlefield National Monument, and Yellowstone National Park.


What is the Capital of Montana

The capital of Montana is Helena

What is the population of Montana

The population of Montana is 1,062,305 according to Wikipedia as of 2018.

What is the area of Montana

The area of Montana is 147,040 square miles and ranks as the 4th largest state in the United States!

Montana Wikipedia Page

Checkout Montana's Wikipedia page to learn all kinds of cool facts about the state!

Official Montana state Website

If you want to learn more about the laws in Montana checkout their official Website Here

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Beaverhead, Big Horn, Blaine, Broadwater, Carbon, Carter, Cascade, Chouteau, Custer, Daniels, Dawson, Deer Lodge, Fallon, Fergus, Flathead, Gallatin, Garfield, Glacier, Golden Valley, Granite, Hill, Jefferson, Judith Basin, Lake, Lewis and Clark, Liberty, Lincoln, McCone, Madison, Meagher, Mineral, Missoula, Musselshell, Park, Petroleum, Phillips, Pondera, Powder River, Powell, Prairie, Ravalli, Richland, Roosevelt, Rosebud, Sanders, Sheridan, Silver Bow, Stillwater, Sweet Grass, Teton, Toole, Treasure, Valley, Wheatland, Wibaux, Yellowstone

Window Tint Laws By State