Montana Window Tinting Laws
Window tint darkness in Montana
The percent of visible light allowed through your car windows is called VLT: Visible Light Transmission. The percentage of light allowed through your film and glass in Montana is very specific and different for sedan cars and SUV cars or vans.
Tint darkness for sedans:
- Windshield: Non-reflective tint is allowed above the manufacturer's AS-1 line.
- Front Side windows: Must allow more than 24% of light in.
- Back Side windows: Must allow more than 14% of light in.
- Rear Window: Must allow more than 14% of light in.
Tint darkness for SUV and vans:
- Windshield: Non-reflective tint is allowed above the manufacturer's AS-1 line.
- Front Side windows: Must allow more than 24% of light in.
- Back Side windows: Any darkness can be used.
- Rear Window: Any darkness can be used.
Window tint reflection in Montana
Window tint can reflect incoming light and reduce glare and heat. Montana window tint law permits a certain window reflection when using a tint so make sure you pay attention to this as well.
Tint reflection for sedans:
- Front Side windows: Must not be more than 35% reflective.
- Back Side windows: Must not be more than 35% reflective.
Tint reflection for SUV and vans:
- Front Side windows: Must not be more than 35% reflective.
- Back Side windows: Must not be more than 35% reflective.
Other Montana window tint rules and regulations:
Montana does have several other important laws, rules and regulations pertaining to window tinting. They include the following:
- Side Mirrors: No restrictions on side mirrors in Montana.
- Restricted Colors: Red, yellow and amber are not allowed.
- Certificates: 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).