No, 15% window tint is illegal in Illinois for passenger vehicles. State law mandates a minimum 35% light transmittance for front side windows, with rear windows permitted darker tints only if the vehicle has side mirrors. Violations may result in citations under 625 ILCS 5/12-603.1, enforced by local law enforcement and the Illinois State Police.
Key Regulations for 15% Window Tint in Illinois
- Front side windows must allow 35% or more light transmittance (VLT), per 625 ILCS 5/12-603.1. Tints darker than this are prohibited, regardless of vehicle type.
- Rear windows may have darker tints (including 15% VLT) only if the vehicle is equipped with both left and right side mirrors. Otherwise, rear windows must also comply with the 35% minimum.
- Reflectivity limits apply: Tint must not be mirror-like (more than 35% reflectivity). Medical exemptions exist but require documentation from a licensed physician, not retroactive approval.
Local jurisdictions (e.g., Chicago, Cook County) may impose additional restrictions or stricter enforcement. The Illinois State Police conduct compliance checks, particularly near the 2026 rollout of automated enforcement systems for vehicle inspections. Non-compliant vehicles may be cited, and tint removal may be ordered. Out-of-state vehicles temporarily operating in Illinois must adhere to these standards.