Missouri window tint law
In Missouri, a passenger car's front side windows must let in at least 35% of light; rear side windows: any darkness; rear window: any darkness. Source: Missouri Revised Statutes §307.173, checked November 2026.
| Front side windows | 35% At least 35% light transmission; reflectance 35% or less. |
|---|---|
| Rear side windows | Any darkness No light-transmission limit in the statute (it only regulates the front side windows). |
| Rear window | Any darkness No light-transmission limit in the statute. |
| Windshield | No aftermarket tint, except on the upper portion the glass maker normally tints. |
| Tolerance | Plus or minus 3% on transmission and reflectance. |
| Medical exemption | Permit from the Department of Public Safety with a physician's prescription. |
The Missouri front-side limit on a car
Levels we picture that meet the front-side limit: 70% (light)50% (medium-light)35% (medium)
Source
Missouri Revised Statutes §307.173
“has a light transmission of thirty-five percent or more plus or minus three percent and a luminous reflectance of thirty-five percent or less plus or minus three percent”
Checked November 2026. A summary of the passenger-car rules, not legal advice: laws change, so check the source or ask a local tint shop before you buy.
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