The Three Rules That Matter Most
- Front side windows (the ones next to the driver and front passenger) must allow more than 35% of light through.
- Back side windows and the rear window can be tinted to any darkness, as long as your vehicle has two working exterior side mirrors.
- The windshield can have a non-reflective tint strip across the top 5 inches, in line with the factory sun-shade strip most windshields already have.
Why the Rules Exist
Window tint laws exist mainly for visibility and safety: law enforcement needs to be able to see into a vehicle during a stop, and drivers need enough visibility at night. That's why front side windows have a stricter minimum light transmittance than the rear windows, which matter less for those purposes.
What Happens If Your Tint Is Too Dark?
If your tint doesn't meet the legal minimum, you can be pulled over and cited, and in some cases required to have the film removed. This is exactly why a consultation matters before you commit to a shade: a good installer will walk you through which percentages are legal for each window on your specific vehicle before any film goes on.
A Note on Staying Current
Tint laws are set at the state level and can be updated over time. This post reflects the rules as commonly understood at the time of writing, but we'd always recommend confirming current requirements with your installer or the NC DMV before you tint, especially if you're considering the darkest shade allowed. When you book with us, checking your shade against current NC law is part of every consultation.
