No, 35% window tint is not universally legal in Idaho. State law mandates front-side windows allow ≥35% light transmittance, but local jurisdictions like Boise or Coeur d’Alene may impose stricter limits. Non-compliant vehicles risk citations under Idaho Transportation Department (ITD) regulations, effective as of 2023 enforcement updates.
Key Regulations for 35% Window Tint in Idaho
- Front-side windows must permit ≥35% light transmittance; 35% tint fails if measured below this threshold.
- Windshield tinting is prohibited except for a non-reflective strip ≤5 inches below the AS-1 line.
- Local ordinances in cities such as Meridian or Pocatello may require ≥40% tint, overriding state minimums.
Idaho’s 2026 compliance framework aligns with federal ANSI Z93.1 standards, requiring certified film documentation. Law enforcement agencies utilize calibrated photometers; discrepancies trigger fines up to $120. Medical exemptions exist but require ITD pre-approval with physician certification. Aftermarket tint must adhere to SAE J2043 specifications to avoid material degradation claims. Vehicles registered out-of-state must comply upon entry, per ITD’s reciprocal enforcement policy.