Is 20% Tint Legal in North Carolina? VLT Laws Explained
Window tinting can improve your vehicle's appearance and provide privacy, but North Carolina has specific laws about how dark your tint can be. Breaking these rules can result in fines, failed inspections, and the requirement to remove your tint. Understanding what's legal in your state before you tint is the best way to avoid costly violations.
North Carolina Window Tint Laws at a Glance
| Window | Legal VLT % | Notes |
|---|---|---|
| Front Windshield | 70% | Only non-reflective tint above the AS-1 line allowed |
| Front Side Windows | 35% | Minimum light transmission required |
| Rear Side Windows | 35% | Any darkness allowed if vehicle has dual mirrors |
| Rear Window | 35% | Any darkness allowed if vehicle has dual mirrors |
What Is VLT and Why Does It Matter?
VLT stands for Visible Light Transmission, which is a measurement of how much light passes through your window tint. A higher VLT percentage means the tint is lighter and more transparent, while a lower percentage means the tint is darker and blocks more light. For example, 70% VLT blocks 30% of light, while 35% VLT blocks 65% of light.
In North Carolina, the state uses VLT limits to balance driver safety and visibility with the aesthetic and privacy benefits of tinting. Law enforcement and vehicle inspectors use special meters to measure tint darkness during traffic stops and inspections. Knowing your state's specific limits helps you stay compliant and avoid fines.
Front Windshield Tinting Rules
North Carolina allows windshield tinting only above the manufacturer's AS-1 line—that's the line marked at the top of the windshield where the defroster ends. Above this line, you can apply non-reflective tint with up to 70% VLT, meaning it can block up to 30% of light.
Below the AS-1 line, your windshield must remain completely clear. This restriction exists because the lower portion of your windshield is critical for your direct line of sight while driving. Even if you're tempted to apply a darker tint below the line, doing so will fail inspection and result in a citation.
Side Window Tinting Requirements
Both front and rear side windows in North Carolina must allow at least 35% of light through, which means your tint can block a maximum of 65% of light. This applies equally to the driver's side window, passenger windows, and rear side windows—as long as your vehicle is equipped with dual outside mirrors (which virtually all modern vehicles are).
To answer the question directly: No, 20% tint is not legal on side windows in North Carolina. A 20% tint blocks 80% of light, which exceeds the state's maximum darkness limit. If you're pulled over with 20% tint on your side windows, you'll receive a citation and be required to have the tint removed or lightened to comply with state law.
Rear Window Tinting
Your rear window can be tinted to 35% VLT or darker, provided your vehicle is equipped with dual outside mirrors (driver and passenger side). Since the vast majority of vehicles manufactured in the last several decades have dual mirrors, this exception generally applies to most cars on the road.
If your vehicle somehow lacks dual mirrors on one or both sides, your rear window tint must remain at or above 35% VLT. However, this is extremely rare for vehicles in active use on North Carolina roads.
Restricted Tint Colors
North Carolina does not ban specific tint colors outright, but you should avoid reflective or mirrored tints that create a mirror-like appearance on your windows. Reflective tints are prohibited because they can interfere with law enforcement's ability to see into your vehicle and pose safety risks. Additionally, while red and amber tints aren't explicitly banned, they can draw unnecessary attention from law enforcement and may be questioned during inspections.
Stick with neutral colors like gray, smoke, or light brown to stay safely within compliance and avoid any confrontations during traffic stops.
Medical Exemptions for Window Tint
North Carolina does offer medical exemptions for window tinting darkness beyond the standard legal limits. If you have a medical condition such as lupus, photosensitivity, or severe sun sensitivity that requires additional UV protection, you may qualify for an exemption.
To obtain a medical exemption, you'll need a letter from a licensed physician documenting your condition and explaining why enhanced window tinting is medically necessary. You must then submit this letter to the North Carolina Division of Motor Vehicles along with your vehicle registration and a request for exemption. Once approved, you'll receive documentation to carry in your vehicle. Law enforcement will still be able to verify your exemption status if stopped.
Penalties for Illegal Window Tint in North Carolina
If you're cited for illegal window tint, you'll typically receive a non-moving violation with a fine. Fines generally range from $25 to $100, depending on whether it's your first offense and the specific county where you're cited. Some officers may issue a fix-it ticket, giving you time to have the tint corrected or removed and return to law enforcement for inspection before facing the full fine.
Vehicles with illegal tint will also fail North Carolina's vehicle safety inspection. You cannot register or renew your registration until the tint is brought into compliance. This means you could face additional penalties if you're caught driving an unregistered vehicle.
Find a Compliant Tint Shop Near You
If you're ready to have your windows tinted legally in North Carolina, it's important to work with an installer who understands the state's specific VLT requirements and regulations. TintingSource.com is your resource for finding certified window tinting shops across North Carolina that specialize in legal, compliant installations. Browse local shops in your area, read customer reviews, and get quotes from installers who know exactly what the law allows in your state.