Yes, 50% window tint is legal in Idaho under specific conditions.
Idaho law permits 50% window tint on passenger vehicles, but only if the tint complies with visibility standards set by the Idaho Transportation Department (ITD). Front side windows must allow at least 35% light transmission, while rear windows may have darker tints. Law enforcement may cite vehicles with non-compliant tints, particularly if they obstruct visibility. Local ordinances in cities like Boise or Coeur d’Alene do not override state regulations, though enforcement varies.
Key Regulations for 50% Window Tint in Idaho
- Light Transmission Requirements: Front side windows must allow ≥35% light transmission; rear windows may have darker tints. The 50% tint must not violate this threshold.
- Reflectivity Limits: Tinted windows cannot reflect more than 20% of light, per ITD Rule 39-0105.
- Medical Exemptions: Idaho allows exemptions for medical conditions, but documentation must be provided to law enforcement upon request. Exemptions do not apply to commercial vehicles.
Enforcement Note: Idaho State Police and local agencies prioritize visibility-related violations. Non-compliant tints may result in citations or mandatory removal. For 2026 compliance, ITD is reviewing potential adjustments to reflectivity standards, though no changes have been finalized. Always verify tint specifications with a certified installer to avoid penalties.