What Tint Is Legal in Indiana? Window Tint Laws Explained

Window tint laws in Indiana set specific limits on how dark or reflective your vehicle's glass can be — and those limits aren't the same for every window on the car. Before you tint or buy a vehicle with existing tint, it's worth understanding how Indiana measures tint, what's allowed on which windows, and where the rules get more complicated.

How Window Tint Darkness Is Measured

Tint darkness is measured by Visible Light Transmission (VLT) — the percentage of light that passes through the glass. A higher VLT percentage means more light gets through, so the window is lighter. A lower VLT means less light passes, making the window darker.

For example:

• 70% VLT = relatively clear, lets most light through
• 35% VLT = noticeably dark, a common aftermarket choice
• 5% VLT = very dark, often called "limo tint"

Indiana law sets minimum VLT thresholds — meaning your tint can't go below a certain darkness level on specific windows.

Indiana's Window Tint Rules by Window

Indiana tint law distinguishes between sedans/coupes and SUVs/vans, and it treats different windows differently.

Windshield

Tint is only allowed on the top 4 inches of the windshield, typically in the form of a non-reflective visor strip. Tint below that line — covering the main viewing area — is not permitted under Indiana law.

Front Side Windows (Driver and Passenger)

For all vehicle types, front side windows must allow more than 30% VLT. That means any tint film applied must still permit at least 30% of visible light through the glass.

Rear Side Windows

• Sedans and coupes: Rear side windows must also allow more than 30% VLT
• SUVs and vans: Any darkness is permitted — there is no VLT minimum for rear side windows on these vehicle types

Rear Window (Back Glass)

• Sedans and coupes: The rear window must allow more than 30% VLT
• SUVs and vans: Any darkness level is allowed

Reflectivity Rules

Indiana also restricts how reflective window tint can be. Metallic or mirrored films that reduce glare are subject to limits to prevent hazards to other drivers.

Highly mirrored or chrome-finish tints that exceed this threshold are not legal regardless of the darkness level.

Other Indiana Tint Requirements Worth Knowing

Dual side mirrors: If the rear window is tinted — especially darkly — Indiana requires that the vehicle have both left and right outside mirrors to maintain adequate rearward visibility. If you're driving a sedan and tint the rear window at all, this becomes relevant.

Tint certification: Indiana does not currently require tint manufacturers to certify their film products with the state, but this can change and varies by jurisdiction. That said, the shop applying the tint is generally expected to know and follow legal limits.

Stickers: Some states require a compliance sticker between the film and the glass. Indiana does not explicitly mandate this, but practices vary by installer.

Color restrictions: Certain tint colors — particularly red, amber, and yellow — are restricted or prohibited on vehicle windows in Indiana because they may be confused with traffic signals or emergency lighting.

Medical Exemptions

Indiana does allow medical exemptions for individuals who have documented conditions that require reduced sun exposure — such as lupus, melanoma, or certain light-sensitive conditions. Drivers with a qualifying condition may be permitted to use darker tint than the standard limits allow. 🩺

The exemption process typically involves documentation from a licensed physician and may require carrying that documentation in the vehicle. The specific process and what's covered is handled through Indiana's Bureau of Motor Vehicles (BMV), and the details of what qualifies can change.

Why This Matters at Inspection and Enforcement

Indiana law enforcement can cite tint violations during traffic stops. Officers may use a tint meter to measure VLT on the spot. Violations can result in fines, and you may be required to remove non-compliant tint to pass a vehicle inspection or avoid further penalties.

If you're buying a used vehicle — especially one from out of state — tint that was legal where it was applied may not meet Indiana's standards. That's a real consideration when evaluating a car with heavy aftermarket tint already installed.

What Shapes Your Specific Situation

Even with the state rules clearly laid out, your individual outcome depends on:

• Your vehicle type — sedan, SUV, van, truck, or crossover classification matters
• Which windows you're tinting or evaluating
• Whether the existing tint on a used vehicle was applied correctly and is within limits
• Any medical need that might qualify you for an exemption
• How the tint is measured — factory glass already has some VLT absorption, and combined with aftermarket film, the result can fall below the legal threshold even if the film itself seems light

Indiana's rules are specific, but applying them to your actual vehicle — with its particular glass, existing coatings, and intended use — is where the general law meets your individual situation.