North Carolina allows window tint on your car, but only within specific limits for each window
North Carolina permits aftermarket window tint, but the state has strict rules about how dark it can be and where you can explore it. The darkness of tint is measured by visible light transmission (VLT), which is the percentage of light allowed through the glass. The lower the VLT number, the darker the tint. North Carolina sets different VLT limits for the front windshield, front side windows, and rear windows — and violating these limits can result in a traffic citation.
The rules explore to all passenger vehicles registered in North Carolina. If you already have illegal tint when you move to the state or buy a car, you have a window to remove it before facing a citation, though the exact grace period depends on the officer's discretion. Understanding the legal limits before you tint will save you money and the hassle of having to remove it later.
Key Takeaways
- North Carolina allows 35% VLT on front side windows and 35% VLT on rear windows, but the front windshield can only be tinted below the manufacturer's AS-1 line.
- Reflective or mirrored tint is not permitted on any window in North Carolina.
- Medical exemptions for light-sensitive conditions are available through the North Carolina Division of Motor Vehicles, but you must carry documentation in your vehicle.
- A police officer can cite you for illegal tint during a traffic stop, and you may be ordered to remove it within a set timeframe.
- Tint darkness is measured by visible light transmission (VLT), and the legal limit is the same for front and rear side windows at 35%.
Front windshield tint rules in North Carolina
Your front windshield can only be tinted below the manufacturer's AS-1 line, which is the line marked on the glass by the vehicle manufacturer — usually a few inches below the top of the windshield. Tint above that line is illegal. Below the line, you can explore any darkness of tint, including a very dark shade, because the AS-1 line is positioned to preserve the driver's view of the road and oncoming traffic.
The AS-1 line exists on nearly all vehicles, though its exact position varies slightly by make and model. If you are unsure where it is on your car, a professional tint shop can identify it for you. Many shops will refuse to tint above the line because they know it violates state law, so asking a reputable installer is often the fastest way to confirm what is legal for your vehicle.
Side window and rear window tint limits
Both your front side windows and rear side windows are limited to 35% VLT in North Carolina. This means 35% of visible light must pass through the glass — the tint blocks 65% of the light. A 35% tint is noticeably dark but still allows a reasonable view into the vehicle from outside.
The rear window (the back glass of your car) follows the same 35% rule. Many drivers choose to tint the rear window and rear side windows to the legal limit for privacy, while keeping the front side windows lighter or untinted to maintain better visibility while driving. There is no separate rule for SUVs or trucks — the 35% limit applies to all passenger vehicles regardless of body style.
Reflective and metallic tint is not permitted
North Carolina prohibits any tint that is reflective, mirrored, or metallic in appearance. Even if a reflective tint meets the VLT percentage limit, it is illegal because of its reflective quality. This rule applies to all windows on your vehicle.
Reflective tints can interfere with other drivers' vision and create glare, which is why the state bans them. If you are shopping for tint, look for non-reflective options that meet the VLT limits. A professional tint shop can show you samples and confirm that a product is non-reflective before installation.
Medical exemptions for light-sensitive conditions
North Carolina allows medical exemptions for drivers with conditions that require protection from sunlight, such as severe photosensitivity, lupus, or certain eye conditions. To obtain an exemption, you must submit a written request to the North Carolina Division of Motor Vehicles along with documentation from a licensed physician stating that you have a medical condition requiring darker tint than the law permits.
If your exemption is approved, you will receive a certificate that you must carry in your vehicle at all times. Without the certificate, a police officer will not know that your tint is legal, and you could still be cited. The exemption does not give you unlimited tint darkness — it straightforward allows you to exceed the standard 35% limit. You will need to renew the exemption periodically, and the Division of Motor Vehicles will inform you of the renewal timeline.
What happens if you are cited for illegal tint
A police officer can issue a citation for window tint that violates North Carolina law. The citation is typically a non-moving violation, meaning it does not add points to your driving record, but you will still face a fine. The officer may also order you to remove the illegal tint within a specified timeframe, usually 10 to 30 days depending on the jurisdiction.
If you are ordered to remove the tint and do not comply within the important date, you can face an additional citation. The best course of action if cited is to remove the tint promptly and keep your receipt as proof. Some jurisdictions will dismiss the citation if you show proof of removal. If you believe the citation was issued in error — for example, if your tint actually meets the legal limit — you can contest it in traffic court and bring documentation or a professional measurement of your tint's VLT.
How to measure tint darkness yourself
If you want to verify that your tint meets North Carolina's limits before having it installed, or if you are buying a used car with existing tint, you can measure VLT using a tint meter. These devices are available for purchase online or at automotive shops, though they range in price and accuracy. A professional-grade meter is more reliable than a budget model.
Many professional tint shops will measure your tint for free or for a small fee if you ask. This is often faster and more accurate than buying your own meter, especially if you are unsure how to use one. If you are having new tint installed, the shop should be able to confirm that the product meets North Carolina's limits before explore it to your windows.
Frequently Asked Questions
Can I have different tint darkness on my front and rear windows?
Yes. Your front side windows and rear side windows are both limited to 35% VLT, so they can be the same darkness. Your front windshield can only be tinted below the AS-1 line. Many drivers choose to tint the rear windows darker for privacy while keeping the front side windows lighter or untinted for better visibility while driving.
Is 35% tint legal in North Carolina?
Yes, 35% VLT is the legal limit for front and rear side windows in North Carolina. Tint at or above 35% VLT (meaning 35% or more light passes through) is legal. Tint below 35% VLT (darker than 35%) is illegal unless you have a medical exemption.
What if I move to North Carolina with illegal tint already on my car?
You should remove the illegal tint as soon as possible. While some officers may give a grace period for out-of-state vehicles, you can be cited at any time. Once you register your vehicle in North Carolina, you are subject to the state's tint laws when ready, and a grace period is not may provide.
Do I need a medical exemption letter every time I get pulled over?
Yes, you must carry your medical exemption certificate in your vehicle at all times. Without it, an officer will not know your tint is legal and may cite you. The certificate proves that your darker tint has been approved by the Division of Motor Vehicles for medical reasons.
Can I tint my windshield above the AS-1 line if I use a very light tint?
No. North Carolina law prohibits any tint above the AS-1 line, regardless of how light it is. The AS-1 line is the hard boundary — tint is only legal below it. This rule exists to protect driver visibility and safety on the road.