Missouri Window Tint Laws

Missouri splits the difference: a firm 35% on front sides, unlimited behind the driver. St. Louis and KC summers push plenty of drivers to limo-dark rears — legally.

Reviewed July 2026 · Passenger cars (sedans)

Legal tint limits in Missouri

GlassRule for passenger cars
WindshieldNon-reflective tint above the AS-1 line.
Front side windows35% VLT or lighter
Back side windowsAny darkness
Rear windowAny darkness
ReflectivityFront sides max 35% reflective.
Medical exemptionAvailable with qualifying documentation

What VLT means (and how police check it)

VLT — Visible Light Transmission — is the percentage of outside light that makes it through your glass. The number printed in the law is a floor: film may be that bright or brighter. Because factory glass already blocks a little light, an officer's meter reads the combineddarkness of glass plus film. A film sold as "35%" on top of factory glass can meter a few points darker — which is why professional installers measure the final result, not the box label.

Quality matters as much as darkness. Dyed films fade purple and bubble; ceramic films like ULTRASHIELD SHADOW reject heat and up to 99% of UV at any legal darkness, with no signal interference — so you get the comfort without gambling on the number.

Missouri tint FAQ

What is the darkest legal tint in Missouri?+
On front side windows, film must let at least 35% of light through (35% VLT). Behind the driver, any darkness is legal.
Can I tint my windshield in Missouri?+
Non-reflective tint above the AS-1 line.
Does Missouri allow medical exemptions for darker tint?+
Yes. Missouri allows darker-than-standard tint with qualifying medical documentation. Keep the paperwork in the vehicle — officers can ask for it during a stop.
Is ceramic tint legal in Missouri?+
Yes — the law regulates darkness (VLT) and reflectivity, not film technology. A ceramic film at a legal VLT is fully compliant, and it rejects far more heat than dyed film at the same darkness, which is why installers recommend it.
Are mirrored or reflective films legal in Missouri?+
Missouri restricts reflectivity: Front sides max 35% reflective.

ULTRASHIELD installers in Missouri

Certified shops that install to your state's exact legal limit and register your warranty with CARFAX.

This page summarizes Missouri statute as published and was last reviewed July 2026. It is not legal advice. Laws change and local enforcement varies — confirm current rules with the Missouri DMV before tinting.