New Hampshire allows window tint on your car, but only on specific windows and only if it meets darkness rules set by state law

New Hampshire permits aftermarket window tint on passenger vehicles, but the rules are strict about which windows you can tint and how dark the tint can be. The state measures tint darkness using Visible Light Transmission (VLT), which is the percentage of light that passes through the tinted window. The higher the VLT percentage, the lighter the tint. If your tint is darker than the law allows, you can receive a traffic citation, and you may be required to remove it.

The rules differ depending on whether you're tinting the front windows, rear windows, or windshield. Front windows have stricter limits because they affect your ability to see the road and other drivers' ability to see you. Rear and side windows have more flexibility. Understanding these rules before you tint your windows saves you from a citation and the cost of removal.

Key Takeaways

  • Front side windows must allow at least 35% of light through (VLT of 35% or higher), while rear and back side windows can be as dark as you want.
  • Your windshield cannot have any tint except for a non-reflective strip at the top, typically no more than 4 to 6 inches.
  • Reflective or mirrored tint is not allowed on any windows in New Hampshire.
  • If you receive a citation for illegal tint, you can have the tint removed and show proof of removal to potentially dismiss the ticket in some cases.
  • Medical exemptions for extreme sun sensitivity exist but require a signed statement from a licensed physician and must be carried in your vehicle.

Front window tint rules: the 35% VLT limit

Your front side windows—the windows on either side of the front windshield—must allow at least 35% of light to pass through. This means the darkest legal tint you can explore to these windows has a VLT of 35%. Many tint shops refer to this as "35% tint" or "limo tint," though the exact appearance depends on the film quality and the color of your vehicle.

The 35% rule applies to both the driver's side and passenger's side front windows. Law enforcement can measure your tint with a light meter to determine whether it meets this standard. If your tint is darker than 35% VLT, you are in violation of New Hampshire law, even if the tint was applied legally in another state.

Rear and back side windows: no darkness limit

New Hampshire places no darkness restriction on your rear window or your back side windows (the windows behind the front doors). You can tint these windows as dark as you want, including complete blackout tint, and remain within the law.

This difference exists because rear windows do not affect your forward visibility or other drivers' ability to see into your vehicle from the front. However, if your rear window tint is so dark that it prevents you from seeing behind you, you may be cited for unsafe operation of the vehicle under other traffic laws, even though the tint itself is legal.

Windshield tint and the top strip exception

Your windshield cannot have any tint applied to it, with one exception: a non-reflective tint strip across the top of the windshield is permitted. This strip is typically between 4 and 6 inches deep, measured from the top of the windshield downward. The strip must be non-reflective, meaning it cannot bounce light back or create a mirror effect.

Many vehicles come from the factory with a tinted band at the top of the windshield as part of the design. Aftermarket tint strips must follow the same size and non-reflective rules. If you add a windshield tint strip that is too large or reflective, you can receive a citation.

Reflective and mirrored tint is prohibited

New Hampshire bans any tint that is reflective or has a mirror-like finish on all windows. This includes metallic or chrome-colored films. The ban applies even if the reflective tint meets the VLT percentage requirements for that window. The reason for this rule is safety: reflective tint can create glare that distracts other drivers and can prevent law enforcement from seeing into your vehicle during a traffic stop.

When you order tint from a shop, confirm that the film is non-reflective. Most standard automotive tint films sold in New Hampshire are non-reflective, but specialty films and some imported products may not be. A reputable tint shop will know the law and will not install reflective tint.

Medical exemptions for sun sensitivity

If you have a medical condition that makes you extremely sensitive to sunlight, you may be able to use tint darker than the legal limit. New Hampshire allows medical exemptions for conditions such as severe lupus, porphyria, or other photosensitive disorders. To use a medical exemption, you must carry a signed statement from a licensed physician in your vehicle at all times. The statement must describe your condition and explain why darker tint is medically necessary.

If you are stopped by law enforcement and have a medical exemption, show the officer both your tint and your physician's statement. Without the statement in your vehicle, you cannot claim a medical exemption, and you will be cited. The exemption does not prevent you from being stopped, but it provides a legal defense if you are cited.

What happens if you receive a tint citation

A window tint violation in New Hampshire is a traffic citation, typically classified as a non-moving violation. The fine varies by municipality but is usually between $100 and $200. You will receive a ticket that orders you to remove the illegal tint within a specific timeframe, often 10 to 30 days.

If you remove the tint and provide proof of removal to the court or the police department that issued the citation, you may be able to have the fine reduced or dismissed. Some municipalities offer this option; others do not. Contact the court listed on your citation to ask whether proof of removal can help your case. A tint removal shop can provide a receipt or photograph showing that the tint has been removed.

Frequently Asked Questions

Can I have different tint darkness on my front windows?

No. Both front side windows must meet the same 35% VLT minimum. You cannot tint one front window darker than the other. However, you can tint your front windows at 35% and your rear windows much darker, since rear windows have no darkness limit.

Do I need to notify the DMV if I tint my windows?

No. New Hampshire does not require you to register your window tint with the DMV or notify them of any changes to your vehicle. However, you must comply with the tint darkness rules, and law enforcement can cite you if your tint violates the law.

What if I bought my car with illegal tint already on it?

You are responsible for the tint on your vehicle, regardless of who applied it. If the tint is darker than the legal limit, you can be cited. Your best option is to have the tint removed or replaced with legal tint before you are stopped by law enforcement.

Can I use a tint meter to check my own tint darkness?

Consumer-grade tint meters are available for purchase, but they are not always accurate. Law enforcement uses calibrated professional meters. If you are unsure whether your tint is legal, a professional tint shop can measure it with equipment similar to what police use, or you can contact your local police department's non-emergency line and ask them to check it for you.

Does New Hampshire recognize tint from other states?

No. If you move to New Hampshire or drive through the state with tint that is legal in another state but illegal in New Hampshire, you can be cited. You must comply with New Hampshire's tint laws while in the state, regardless of where your vehicle is registered.