Montana window tint laws
In Montana, front side windows must allow 24% of light through, back side windows 14%, and the rear window 14%. Non-reflective tint allowed above the AS-1 line
| Window | Montana rule |
|---|---|
| Windshield | Non-reflective tint allowed above the AS-1 line |
| Front side windows | 24% VLT minimum |
| Back side windows | 14% VLT minimum |
| Rear window | 14% VLT minimum |
| Reflectivity | Front and back side windows must not be more than 35% reflective |
| Banned colors | red, yellow, amber |
| Medical exemption | Yes |
| Statute | Mont. Code Ann. § 61-9-405 |
What installers in Montana will tell you
SUVs and vans may use any darkness on back side and rear windows (sedans are limited to 14%). Violations are a misdemeanor carrying fines up to $500 and/or up to 6 months in jail.
Frequently asked questions
What is the darkest legal tint on front windows in Montana?
Front side windows must let at least 24% of light through in Montana. Film plus factory glass count together.
Can I use 5% tint in Montana?
No on front side windows. Rear windows are limited to 14% VLT minimum and back side windows to 14% VLT minimum.
Does Montana allow a medical exemption for darker tint?
Yes. Montana allows darker tint with a qualifying medical condition; you typically need a physician's statement kept in the vehicle.
Can I tint the windshield in Montana?
Non-reflective tint allowed above the AS-1 line
Sources
Reference only, not legal advice. Statutes change; confirm with the Montana statute above before you install.