Wisconsin State Regulations
Window Tint Darkness
- Windshield: Non-reflective tint is allowed above the manufacturer’s AS-1 line.
- Front Side windows: Must allow more than 50% of light in.
- Back Side windows: Must allow more than 35% of light in.
- Rear Window: Must allow more than 35% of light in.
Window Tint Reflection
- Front Side windows: Tinting film must not be reflective.
- Back Side windows: Tinting film must not be reflective.
Source: https://docs.legis.wisconsin.gov/statutes/statutes/347.pdf