Kentucky Window Tint Laws (2026): Legal VLT Limits
Kentucky Window Tint Laws (2026): Legal VLT Limits
Kentucky law requires front side windows to allow at least 35% of visible light through. Back side and rear windows must allow at least 18% VLT on sedans, but SUVs, vans, and trucks may use any darkness on those windows behind the driver.
What is the legal tint limit in Kentucky?
Kentucky's window tint law is set out in KRS 189.110. The front side windows on every vehicle must transmit at least 35% of visible light. A quick concept worth knowing before you go further: a higher VLT percentage means lighter tint, and a lower VLT percentage means darker tint. So 35% is a moderately dark shade, and anything below that number would be illegal on the front side windows.
For sedans, the back side windows and the rear window also require a minimum of 18% VLT. That is considerably darker than the front, giving sedan owners meaningful privacy and heat rejection in the rear. SUVs, vans, and trucks may use any level of darkness on the windows behind the driver's row, as long as the vehicle has dual outside mirrors that provide an adequate rear view if the rear window is covered.
| Window | Sedans | SUVs, Vans, and Trucks |
|---|---|---|
| Front side windows | 35% VLT minimum | 35% VLT minimum |
| Back side windows | 18% VLT minimum | Any darkness (dual mirrors required) |
| Rear window | 18% VLT minimum | Any darkness (dual mirrors required) |
Windshield tint rules in Kentucky
Kentucky permits a non-reflective tint strip on the windshield above the AS-1 line only. The AS-1 line is a marking etched into most windshields near the top; on vehicles that do not have one, the top few inches serve as a practical guide. No tint is permitted in the main viewing area of the windshield below that line.
Reflectivity is capped at 25% on front side windows. Reflective or metallic films are banned on all windows statewide. Kentucky also prohibits red, amber, and any colors resembling emergency or signal lights. These color restrictions apply regardless of VLT level. A dark film in a prohibited color would violate two rules at once.
The windshield strip itself must be non-reflective. A mirrored or metallic finish at the top of the windshield, even if it sits above the AS-1 line, is not permitted.
Medical exemptions
Kentucky does allow a medical exemption for tint darker than the legal standard. The authority comes from KRS 189.110(5). If you have a photosensitive condition such as lupus, albinism, xeroderma pigmentosum, or a similar diagnosis requiring extra protection from sunlight, a licensed physician can certify your need.
The certifying physician should provide a signed statement describing the medical condition and the reason darker tint is medically necessary. You must carry that documentation in the vehicle at all times. If you are stopped, presenting the paperwork to the officer is the first step in avoiding a citation.
Without the exemption document in the vehicle, the officer has no on-the-spot way to confirm your status, and you may receive a citation that you would need to contest later in court. Keep a copy in your glove box and consider keeping a second copy at home.
How tint is measured and certified
Kentucky law enforcement uses a VLT meter (also called a photometer or tint meter) during traffic stops and vehicle inspections to measure the percentage of visible light passing through a window. The legal tolerance is plus or minus 3%, so a window that reads between 32% and 38% on a meter would pass a 35% standard.
Kentucky requires a compliance sticker, placed as a non-removable installer label on the inside of the left door jamb. The label identifies the installer and confirms the film meets state standards. Do not remove or cover the sticker; its absence can itself trigger a citation.
When purchasing a vehicle with pre-existing tint, have a tint shop or law enforcement verify the readings before assuming the film is legal. Window film can shift in VLT over time as it ages or bubbles, and film applied out of state may not meet Kentucky's specific limits.
Penalties for illegal tint in Kentucky
Kentucky gives officers two enforcement paths for illegal tint. The first is a fix-it ticket: you have 10 days to bring the vehicle into compliance and provide proof to the issuing agency. The second is a misdemeanor citation, which carries a fine of approximately $250 plus court costs.
Which path an officer takes depends on their discretion and whether you have prior tint violations. Repeat offenses or openly non-compliant modifications tend to result in the misdemeanor route rather than a corrective opportunity. In either case, you will still need to remove or replace the non-compliant film to avoid further enforcement.
The penalty can apply to both the vehicle operator and, in some circumstances, the installer who applied film that does not meet state standards. Having a licensed installer provide written documentation of the film's VLT protects you if compliance is ever questioned.
If you want to tint your windows in Kentucky
Start by choosing a VLT that meets the 35% minimum on front side windows. Many drivers select 35% film, which sits right at the legal floor and provides solid heat and glare reduction while staying within the meter tolerance. If you drive a sedan and want to tint the rear, any film at 18% VLT or lighter is permitted. SUV and truck owners can go as dark as they want on the windows behind the driver.
Choose a tint installer who knows Kentucky law and will place the required compliance sticker on the left door jamb. Ask for a written receipt or certificate listing the VLT of the film on each window and keep it in your glove box.
If you have a qualifying medical condition, talk to your physician before installation. Obtaining the KRS 189.110(5) exemption in writing before you tint lets you choose a VLT darker than 35% on the front without legal risk. If you are installing tint on an SUV or truck, confirm in writing which windows are covered by the any-darkness rule and which still require the 35% minimum on the front.
This article is general legal information, not legal advice. Window tint limits vary by state and change, and enforcement depends on local practice and your specific vehicle. For a definitive answer, check your state DMV or consult a local attorney.
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Sources
- Kentucky Revised Statutes 189.110, Kentucky Legislature: https://apps.legislature.ky.gov/law/statutes/statute.aspx?id=54782
For the full national picture, see our Window Tint Laws by State hub. Kentucky drivers may also want to review Kentucky Windshield Mounting Restrictions for related vehicle equipment rules.