Montana Window Tint Laws Today

Quick Answer: Montana Window Tint Laws

In Montana, for sedans, SUVs and vans, on the windshield, non-reflective tint is allowed above the manufacturer’s AS-1 line of the windshield. The front windows must have minimum 24% tint darkness. For sedans, the back and rear windows must have minimum 14% tint darkness while in sedans, these windows can have any tint darkness. Medical exemptions are provided. For more details, check out the article below.

Window tinting is the solution to protect yourself from excess sun rays and heat in your car by reducing the transmission of light through the windows.

The car window tinting laws were enacted in Montana in 1991. The laws are regulated by the Montana Department of Justice.

In this article, we provide and explain the window tint laws for cars in the state of Montana (MT).

The information on this article is based on the latest information and in accordance with the regulations provided by the authorities at the Montana Department of Transportation, Department of Justice, and the International Window Film Association in March 2020.

Montana Window Tinting Laws

Window tinting films for your car or other multipurpose vehicles (MPVs) is provided for various purposes, including privacy of the driver and the passengers, medical, and legal conditions.

The Visible Light Transmission or VLT determines the tint of your car window. It is the percentage of light that a window tint film allows to pass through your car windows.

A higher VLT allows more light to pass through the window, while a lower VLT allows a lower amount of light.

The percentage of light allowed through your film and glass in Montana is specific and different for the type of your car, be it a passenger vehicle or a multipurpose vehicle.

Tint Darkness for Sedans

The following are the tint darkness laws for sedans in Montana.

Windshield: Non-reflective tint is allowed above the manufacturer’s AS-1 line of the windshield. The AS-1 line extends from the letters AS-1, found on most vehicle windshields, running parallel to the top of the windshield.

Front Side Windows: Minimum 24% of the outside light must be allowed inside. In other words, the windows are allowed up to 24% VLT or tint darkness.

Rear Windows: Minimum 14% of the outside light must be allowed inside.

Back Side Windows: Minimum 14% of the outside light must be allowed inside.

Tint Darkness for SUVs and vans

The following are the tint darkness laws for SUVs and vans in Montana.

Windshield: Non-reflective tint is allowed above the manufacturer’s AS-1 line of the windshield.

Front Side Windows: Minimum 24% of the outside light must be allowed inside.

Rear Windows: Any tint darkness can be used for these windows.

Back Side Windows: Any tint darkness can be used for these windows.

Windows Tint Reflection Laws in Montana

You may opt for a reflective window tint for your car, which is legal in some states. It reflects the incoming light on the window, reducing the glare and heat generated.

Tint Reflections for Sedans

The following are the tint reflection laws for sedans in Montana.

  • Front Side Windows: The window tints must not cross 35% reflectiveness.
  • Back Side Windows: The window tints must not cross 35% reflectiveness.

Tint Reflections for SUVs and vans

The following are the tint reflection laws for SUVs and vans in Montana.

  • Front Side Windows: The window tints must not cross 35% reflectiveness.
  • Back Side Windows: The window tints must not cross 35% reflectiveness.

Other Window Tint Rules in Montana

There are some other rules for cars regarding the manufacturer certificate, sticker to identify legal exceptions, medical exemptions, and so on.

  • Side mirrors: There are no restrictions on side mirrors in this state.
  • Certificates: Certification of tinted film by manufacturers is not required in Montana.
  • Stickers: In Montana, stickers or labels to identify certified tinting are recommended but not required.
  • Medical Exceptions: Montana provides medical exemptions for special tints. Please see Exceptions to Window Tinting Laws.

Color Rules Related to Window Tints in Montana

For some purposes, the car’s windows may have a colored tint. Some states restrict the colors that can be used.

The state of Montana does not have any particular restrictions on colors for window tinting; any colored tints are allowed.

Exceptions to Window Tinting Laws in Montana

Exemptions for special window tints are allowed for medical reasons in many states. They are provided to citizens with medical conditions which require to be protected from the direct rays of the sun.

The state of Montana provides exemption for the owner of vehicle for medical reasons as well as safety and security.

An application to the Highway Patrol or local law enforcement agency is required which must include a written affidavit signed by a licensed physician, licensed physician assistant, or advanced practice registered nurse.

The waiver document must include the vehicle identification number, registration number, (or other description to clearly identify the motor vehicle to which the waiver applies and the date issued), the name of the owner of the vehicle, the reason for granting the waiver, the dates the waiver is effective, and the signature of the law enforcement officer granting the waiver.

It is suggested to keep this waiver in your vehicle at all times. The highway patrol or the local law enforcement agency shall keep a copy of the waiver until the waiver expires.

Penalty for Breaking Montana Window Tinting Laws

Failure to comply with the above laws, will result in the person being guilty of misdemeanor with a fine of $500 and/or up to 6 months in county jail.

Summary

We have provided laws for window tint films for vehicles to be followed in the state of Montana.

If you have any questions or comments, feel free to comment down below or email us. While we constantly update our articles, we encourage you to keep up to date with the latest laws by contacting your state department of transportation.

Check Other Window Tint Laws>

Caroline is a homemaker and loves cooking and baking for her kids. She believes "AnyBody Can Cook" and plans to publish her cookbook soon. Thanks to her cooking adventures, she frequently buys and tests the latest kitchen appliances.

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