No, 15% window tint is illegal in South Dakota as state statute mandates a minimum 35% light transmittance for passenger vehicles. Local law enforcement, per South Dakota Highway Patrol directives, actively cites violations during roadside inspections. The 2026 regulatory review by the South Dakota Department of Public Safety may tighten enforcement but does not alter current thresholds.
Key Regulations for 15% Window Tint in South Dakota
- Statutory Limit: South Dakota Codified Laws § 32-17-20 prohibits window tint below 35% light transmittance for front side, rear side, and rear windows in passenger vehicles.
- Medical Exemptions: Only vehicles equipped with a South Dakota-issued medical exemption permit may legally operate with darker tint, subject to annual renewal per Department of Public Safety guidelines.
- Enforcement Protocol: Local law enforcement agencies, including municipal police and county sheriffs, utilize light transmittance meters during traffic stops to verify compliance, with citations issued for violations.
Vehicles registered out-of-state must comply with South Dakota’s standards within 30 days of residency establishment, per the South Dakota Division of Motor Vehicles. Non-compliant tint may result in mandatory removal or a fine up to $100, per local ordinances. Commercial vehicles face stricter limits, with front side windows restricted to 70% light transmittance under federal Motor Carrier Safety Administration cross-references.