If you drive in Missouri and want tint, the law cares about one number: VLT, or Visible Light Transmission. It is the percentage of light a window lets through, so a lower number means a darker window. Here is exactly what Missouri allows as of 2026, and how we keep your install both sharp and street-legal.
The limits (cars, SUVs, and vans)
- Windshield: a non-reflective strip is allowed along the top, down to the AS-1 line (about 5 to 6 inches from the top). No tint across the full windshield.
- Front side windows: must let in more than 35% of light (35% VLT or lighter).
- Back side windows: any darkness is legal.
- Rear window: any darkness is legal. If you tint the rear glass, Missouri requires dual side mirrors, which most vehicles already have.
A few more rules that matter
- Reflectivity: tint cannot be more than 35% reflective, which rules out heavy mirror and chrome looks.
- Tolerance: Missouri allows a 3% margin, so a 32% reading on a 35% window will not get you ticketed.
- Medical exemptions: drivers with a qualifying condition can run darker tint with the right paperwork. Ask us how it works.
Why this matters: the darkness that looks great on the back of an SUV can be a ticket up front. We measure VLT before we cut, so your front windows stay legal and the rest gets as dark as you want.
Crossing into Illinois? The rules are different there. See our Illinois window tint guide.
Want a shade that looks right and passes a stop? Call 618.222.2234 or request a quote and we will walk you through it. Learn more about our window tinting services.
Tint laws and enforcement can change. This reflects Missouri law as of 2026; confirm current rules before you rely on them.