The current Indiana thresholds
As of October 3, 2026, Indiana Code 9-19-19-4 sets visible-light-transmission and reflectance limits for covered vehicle windows. The statute uses a 30% visible light transmittance threshold and a 25% solar reflectance threshold, subject to the law's specific wording and exceptions.
Why the final glass matters
A film label is not the whole measurement. Existing automotive glass already transmits and reflects light, so the final glass-and-film combination is what matters. Vehicle type, factory glass, and the window being tinted should be considered before a shade is selected.
Exceptions and documentation
The statute includes provisions for manufacturer-compliant glazing and medical needs. Documentation requirements apply. If you may qualify for an exception, read the current statute and confirm what must be carried in the vehicle.
What to ask before choosing
- What is the expected final visible light transmission on this vehicle?
- How does the factory glass affect the finished measurement?
- Which windows are included in the recommendation?
- What current film specifications and shade choices are available?
Indiana tint questions
What does 30% visible light transmittance mean?
Visible light transmittance describes how much visible light passes through the glass and film together. A higher percentage allows more light through.
Does factory privacy glass count?
The final window is what matters. Factory glass can affect the combined measurement, so the vehicle and existing glass should be identified before choosing film.
Are there medical exceptions?
Indiana law includes a medical provision with documentation requirements. Read the current statute and confirm the required certification before relying on an exception.
Can the tint specialist choose the legal shade for me?
The specialist can discuss current options and measurements, but the vehicle owner should review the current law and make the final compliance decision.
