Yes, 50% window tint is legal in Wisconsin, but only for the rear windows of non-commercial vehicles.
Wisconsin Statute § 347.43(2)(b) permits up to 50% light transmittance for rear side and rear windows, while front side windows must allow at least 70% visibility. Local enforcement agencies, including the Wisconsin State Patrol, actively cite violations during routine traffic stops. A 2026 DOT rule revision may tighten rear-window exemptions for commercial fleets, but passenger vehicles remain unaffected.
Key Regulations for 50% Window Tint in Wisconsin
- Front Side Windows: Must transmit ≥70% of light; 50% tint is prohibited.
- Rear Side & Back Windows: Up to 50% tint is permitted for sedans, SUVs, and light trucks.
- Reflective Tint: Any mirror-like or metallic tint is illegal regardless of darkness.
Non-compliance risks a $177.50 fine under § 347.43(2)(b). Medical exemptions exist but require prior approval from the Wisconsin Department of Transportation. Always verify tint compliance with certified equipment, as handheld meters (e.g., VLT-100) are standard in enforcement.