South Dakota Window Tint Laws
Published by TintLegal. Content corrected September 19, 2026. Individual source-check dates appear alongside the rules; this is AI-assisted source research, not professional legal review.
Start with the correct window and vehicle
For ordinary passenger car / sedan, front-side requirement: >= 35% combined VLT. Rear-side requirement: >= 20% VLT (measurement unresolved). Rear window: >= 20% VLT (measurement unresolved).
A whole windshield and its upper visor strip have separate rules. Read the conditions below before choosing film. A “no VLT minimum” entry does not remove other restrictions.
Window and vehicle requirements
Window positions only; shading does not simulate tint or visibility. Ordinary passenger car / sedan:
- A — Whole windshield: Not yet verified. The visor strip is a separate table row.
- B — Front side: >= 35% combined VLT
- C — Rear side: >= 20% VLT (measurement unresolved)
- D — Rear window: >= 20% VLT (measurement unresolved)
Ordinary passenger car / sedan
Special classes and exemptions require separate assessment; do not infer classification from marketing names.
| Window | Requirement | Conditions and evidence |
|---|---|---|
| Front side | >= 35% combined VLT | Tolerance, separate from minimum: 9 percentage-point enforcement tolerance, not subtracted. §§32-15-2.4–2.10 (checked 2026-09-19) |
| Rear side | >= 20% VLT (measurement unresolved) | §§32-15-2.4–2.10 (checked 2026-09-19) |
| Rear window | >= 20% VLT (measurement unresolved) | §§32-15-2.4–2.10 (checked 2026-09-19) |
| Full windshield | Not yet verified | Current rule has not yet been verified. |
| Windshield visor strip | Not yet verified | Current rule has not yet been verified. |
Check a tint VLT requirement
Use a measured combined glass-plus-film VLT reading. A film label alone cannot tell you the installed VLT. This is a limited check, not a certificate of complete compliance.
Choose your state, class and window, then enter the measured VLT.
Read the state rules and official sources
Estimate combined VLT from film and glass specifications
Approximation: glass VLT × film VLT ÷ 100. For example, 80% glass × 35% film = 28%. An estimate is not a calibrated measurement and is never used as a passing calculator result.
Restrictions beyond darkness
Rear 20% appears in material wording; combined rear scope remains unresolved. Do not interpret front 35% as whole-windshield permission. Manufacturer certification required.
Window positions: front-side means beside the driver/front passenger; rear-side means behind the driver; rear window means the back-facing glass. The tables separate full-windshield coverage from an upper strip. Vehicle marketing names alone do not resolve statutory classifications.
Medical exemptions
Availability and process not yet verified. A missing form does not mean no exemption exists.
Renewal: Not yet verified; confirm with the issuing authority.
Compare verified medical instructions . Do not treat a medical diagnosis as automatic approval.
Tickets and costs
A reliable statewide total has not been verified. The cited offense, court and local fees determine the amount; dismissal is not automatic.
Official sources and research limits
- §§32-15-2.4–2.10
Front 35% combined; rear 20%; officer tolerance 9 separate. Windshield film limited toAS-1/sunvisor extent and cannot obstruct vision; manufacturer certification.
Source checked 2026-09-19. Effective date not independently established; see source history.
Unknown entries identify specific research gaps. They are not assertions that tint is prohibited or unrestricted. Contact the official motor-vehicle agency to resolve an unclear classification before installation.
Practical questions
Does a 35% film label mean the window measures 35%?
No. With 80% glass, 35% film estimates to 28% combined VLT. Measure the installed combination; understand VLT and estimates .
Does passing the calculator prove full compliance?
No. It checks the verified numerical rule and explicitly confirmed conditions for the selected case. Reflection, color, certification, special uses and approved exemptions may need separate assessment.
Neighboring state research
Use the same vehicle classification when comparing. Nonresident applicability has not been established across these states; crossing a border is not automatically a violation or an exemption.
- Iowa — ordinary passenger front: >= 50% combined VLT
- Minnesota — ordinary passenger front: >= 50% combined VLT
- Montana — ordinary passenger front: >= 24% VLT (measurement unresolved)
- Nebraska — ordinary passenger front: >= 35% VLT (measurement unresolved)
- North Dakota — ordinary passenger front: >= 35% combined VLT
- Wyoming — ordinary passenger front: >= 28% combined VLT
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