Oregon Window Tint Laws (2026): Legal VLT Limits

Oregon requires window tint film on front side windows to allow at least 50% VLT on its own, and the combined film-plus-glass must allow at least 35% VLT. Passenger car back side and rear windows follow the same standard, while multipurpose vehicles (SUVs, vans, and trucks) may run any darkness behind the driver only if they have dual outside mirrors AND the tinted glass meets AS-3 federal glazing standards.

What is the legal tint limit in Oregon?

Oregon's tint law works in two layers, which makes it somewhat unique. The film itself must allow at least 50% Visible Light Transmission (VLT). But beyond that, the combined transmittance of the film and the factory glass together must be at least 35% VLT. A higher VLT% means lighter tint; a lower VLT% means darker tint. Most factory glass already absorbs some light, so a 50% film applied to glass that passes 80% of light would yield a combined VLT of about 40%, which is above the 35% threshold. If your factory glass is already dark, you have less room to add tint.

For passenger cars (sedans), the dual standard applies to all side windows, including the windows behind the driver. For multipurpose vehicles (SUVs, vans, and trucks), the same rules apply to the front side windows, but the windows behind the driver and the rear window have no VLT restriction if two conditions are both met: the vehicle has dual outside mirrors providing an adequate rear view, and the tinted glass meets AS-3 glazing material standards under federal regulation (ORS 815.221(4)).

Oregon's 13% reflectance cap on side and rear window film is stricter than many states. Combined with the statewide ban on mirror finish material, that puts highly reflective or mirrored films off the table regardless of how much light they transmit.

Windshield tint rules in Oregon

Oregon allows tint film on the windshield only within the top 6 inches. Below that line, the windshield must be free of any added film: ORS 815.221(3) permits the darker material on the top six inches and prohibits tinting material on any other portion of the windshield. That subsection sets no reflectance figure for the permitted strip. The 13% light reflectance limit sits in ORS 815.221(2)(b), which is written for the side and rear windows. What does restrict a reflective windshield strip is the separate ban on mirror finish material in ORS 815.221(8), which applies to every window. Spray-on tint is expressly prohibited on any window, not just the windshield.

Several colors are banned across all windows. Red, gold, yellow, amber, and black tint films are not lawful in Oregon. Mirror-finish films are also prohibited statewide. These bans apply to every window on the vehicle, not just the windshield strip. When shopping for film, confirm that the product does not carry any of these color designations and that it is not marketed as a mirror or reflective finish.

The 13% reflectance limit on side and rear windows is relatively strict. Many states allow 20 to 35% reflectance. Oregon's lower ceiling means even lightly metallic gray films may push past the legal line. Ask your installer to measure reflectance before installation if the film you want has any metallic content.

Medical exemptions

Oregon allows a medical exemption for window tint that exceeds the standard VLT limits, but the statute is narrower than most summaries suggest. ORS 815.221(5) permits tinting material with lower light transmittance on the side and rear windows of a vehicle registered in the name of a person, or that person's legal guardian, where that person or another person in the person's household has a physical condition that requires the lower transmittance. The condition must be documented by a licensed physician or optometrist in one of three forms named in the statute: an affidavit, a prescription, or a letter on the practitioner's letterhead.

Two limits in that language matter in practice. The exemption attaches to a registered vehicle, not to a person, so it does not follow you into a rental, a borrowed car, or a vehicle that is not registered to you or your legal guardian. It also reaches beyond the driver: a condition belonging to another member of your household supports the exemption on a vehicle registered in your name.

You do not file the documentation with a state agency. ORS 815.221(6) requires the document to be kept in the vehicle and shown to a police officer who asks about the tint. Without the documentation in the car, the exemption provides no protection during a traffic stop.

How tint is measured and certified

Tint is measured with a VLT meter, a device that shines a light through the glass and measures how much passes through. Oregon's dual-standard rule means a meter reading the combined film-plus-glass must show at least 35%, while a separate reading of only the film must show at least 50%. In practice, most officers and inspectors measure the combined reading at the window itself. If you are concerned about a specific film, ask your installer to take both readings before the installation is complete.

Oregon does not require a compliance sticker on the vehicle. However, the installer is required to provide a certificate of transmittance and reflectance to the vehicle owner. This document shows the measured VLT and reflectance values for the film installed. Keep this certificate in the glove box alongside any medical documentation. It will not prevent a stop, but it can help demonstrate compliance if you are cited and contest the ticket.

No specific measurement tolerance is listed in ORS 815.221, so any reading that measures below the threshold may result in a citation. If you are close to the limit, erring on the lighter side of the range is the safer choice.

Penalties for illegal tint in Oregon

Driving with non-compliant window tint in Oregon is a Class B traffic violation under ORS 815.222. The presumptive fine is $265, set by ORS 153.019 as amended by 2024's HB 4002. A Class B violation does not carry the risk of jail time, but court costs and assessments can add to the amount actually owed.

Oregon does provide statutory relief after a tint citation, in two separate forms. Under ORS 815.222(4), a court may dismiss a citation issued under that section, or reduce the fine, if you show the vehicle's windows were modified to comply after the citation was issued. The statute names the proof a court may consider: a receipt from a business for removing the nonconforming material or installing conforming material, a written statement by a law enforcement officer, or other evidence that the windows were modified or the material removed. Fixing the tint is not automatic dismissal, since the statute leaves the decision with the court, but it is a remedy the legislature wrote into the law rather than an informal courtesy.

ORS 815.222(5) creates a second path. A court may likewise dismiss the citation or reduce the fine if you establish that, at the time of the citation, you or another person in your household had a physical condition requiring the lower light transmittance, proved by an affidavit, a prescription, or a letter on the practitioner's letterhead signed by a licensed physician or optometrist. Separately from either statutory path, you can contest the citation outright by presenting measurement evidence showing your tint is within the legal limits.

Installers who knowingly put on illegal tint may also face liability under Oregon law. When selecting an installer, confirm in writing that the film they plan to use meets Oregon's dual VLT standard and the 13% side and rear window reflectance cap.

If you want to tint your windows in Oregon

Start by selecting a film that is rated at 50% or higher VLT on its own. Do not assume a 50%-rated film will automatically produce a compliant combined reading with your specific factory glass. Ask the installer to measure the combined transmittance through your vehicle's glass before cutting the film, and confirm that side and rear window film does not exceed 13% reflectance.

Avoid any film sold as red, gold, yellow, amber, or black in color, and avoid mirror-finish or spray-on products. These are banned regardless of how much light they transmit. Stick with neutral tones (gray, charcoal, ceramic, or smoke finishes) that carry no color designation.

After installation, get the transmittance and reflectance certificate from the installer and keep it in the vehicle. If you have a medical exemption, keep that documentation in the car as well. If you drive an SUV, van, or truck, remember that your front side windows must still meet the full dual standard even though your rear side windows and rear window are unrestricted, provided the vehicle has dual outside mirrors and the glass meets AS-3 federal glazing standards.

If you are buying a used vehicle in Oregon, inspect any existing tint carefully. The prior owner's compliance is not guaranteed, and you will be responsible for the tint on the vehicle you drive.

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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