Tools · Window Tint
Montana Window Tint Checker (2026)
The legal tint limit for every window position in Montana (24% on the front sides), checked against your own film's VLT, with the medical exemption and what a ticket costs.
Montana window tint checker
VLT (visible light transmission) is the share of light the film lets through; a lower number is darker. It is printed on the film packaging or your installation receipt. Leave it blank to just read the limits.
Enter your film's VLT above to check it against each Montana window limit, or read the limits as they stand.
The 14% floor for side windows behind the front seat and the rear window does not apply to a multipurpose vehicle, van, or bus (§61-9-405(4)(c)).
Film is sold by its own VLT, but police measure the installed darkness: the film combined with your factory glass, which reads darker than the film alone. These are the Montana figures stated as information, not a determination about any stop or ticket.
Informational only, not legal advice. Reflectivity limits, color bans, and vehicle-class exceptions can change the answer for a specific car. See the full rules, the exemption steps, and the citations on the Montana window tint reference, cited to Mont. Code Ann. §61-9-405; waiver §61-9-428; penalty §61-9-429.
How the Montana tint rules work
Montana sets a firmer floor than most neighbors: at least 24% on the front doors and at least 14% on the side windows behind the driver and the rear window. The one release valve is vehicle class, a multipurpose vehicle, van, or bus is exempt from the 14% floor behind the front seat. The waiver drivers care about lives in a separate section (§61-9-428): a physician, physician assistant, or nurse affidavit can earn a written waiver from the highway patrol or local police for safety, security, or medical reasons.
This checker applies the Montana figures to the VLT you enter. It is informational only and not legal advice: reflectivity limits, color bans, and vehicle-class exceptions can change the answer for a specific car. For the full rules, the shades table, and the citations, see the Montana window tint reference, cited to Mont. Code Ann. §61-9-405; waiver §61-9-428; penalty §61-9-429.
Window tint checkers for other states
Same tool, each with its own per-window limits.