Yes, Missouri permits 15% window tint on passenger vehicles, but only if the manufacturer’s original windows are non-reflective and the tint complies with state visibility standards. Local jurisdictions like St. Louis and Kansas City enforce additional permitting for aftermarket tints, requiring certification from licensed installers. The Missouri State Highway Patrol conducts roadside inspections, and violations may result in citations or mandatory tint removal. As of 2026, proposed amendments to §307.173 RSMo aim to standardize enforcement, mandating visible light transmission (VLT) testing at inspection stations.
Key Regulations for 15% Window Tint in Missouri
- Visible Light Transmission (VLT): Front side windows must allow at least 35% VLT, while rear side and back windows may use 15% tint if the vehicle has side mirrors. Medical exemptions require documentation from a licensed physician.
- Reflectivity Limits: Non-reflective tints are permitted, but metallic or mirrored films exceeding 25% reflectivity violate state standards. The Missouri Department of Revenue’s 2025 guidelines clarify measurement protocols for enforcement.
- Certification & Labeling: Installers must affix a sticker near the driver’s window certifying compliance with Missouri’s VLT and reflectivity requirements. Failure to display this label constitutes a primary offense under §307.173.