Utah Window Tint Laws: Complete Legal Guide

Window tinting can reduce glare, protect your interior from UV damage, and enhance your vehicle's appearance—but only if you follow Utah's specific regulations. Breaking tint laws in Utah can result in traffic citations, fines, and inspection failures that prevent vehicle registration. Understanding what's legal before you tint will save you time, money, and headaches down the road.

Quick Reference Table

Understanding VLT (Visible Light Transmission)

VLT stands for Visible Light Transmission, and it's the key measurement for window tint legality. It's expressed as a percentage and refers to how much visible light passes through your tinted window. A 70% VLT tint is very light and lets most light through, while a 20% VLT tint is very dark and blocks most light. The lower the percentage, the darker the tint.

Utah law sets minimum VLT percentages for front windows, meaning your tint must be light enough to meet those standards. For rear windows, there's no restriction—you can go as dark as you want. This distinction is important because it means you have flexibility with privacy in the back but need to be more cautious with visibility in the front.

Front Windshield Rules

Utah allows non-reflective tint on your front windshield, but only above the AS-1 line (the manufacturer's specified line on your windshield). The tint must allow 70% or more light transmission, making it a very light tint that won't significantly darken your windshield. This rule exists because law enforcement and safety officers need to see into vehicles during traffic stops and emergencies.

Reflective or mirrored tints are prohibited on the front windshield. Your tint must be non-reflective to comply with state law. If you're considering any tint on your windshield, work with an experienced installer who knows exactly where the AS-1 line sits on your vehicle's glass.

Side Window Rules

Your front side windows (driver and passenger doors) have the same VLT requirement as your windshield in Utah: 70% VLT or lighter. This means you cannot use dark tint on your front side windows; the tint must be light enough to maintain visibility into the vehicle from the outside.

Rear side windows have no VLT restrictions under Utah law. You can apply any darkness of tint you want to the windows behind the driver and passenger seats. Many vehicle owners take advantage of this by using darker tint in the rear for additional privacy and UV protection while keeping the front windows light to meet legal requirements.

Rear Window Rules

Your rear window (back glass) is completely unrestricted in Utah. You can apply tint of any darkness level, including completely opaque tint if you choose. There are no special exemptions needed for vehicles with dual side mirrors—as long as your vehicle has functional mirrors that allow you to see behind you, you can tint the rear window as dark as you want.

This rear window freedom is one of the most permissive aspects of Utah's tint laws and gives drivers plenty of options for heat reduction and privacy in the back of their vehicles.

Restricted Colors

Utah does not explicitly ban specific tint colors like red or amber. However, the state's tint regulations focus on VLT percentages and reflectivity rather than color restrictions. That said, it's worth noting that some colors (like amber or red) may draw unwanted attention from law enforcement even if technically legal, and using any colored tint should be done carefully and in consultation with a professional installer.

The key restriction in Utah is that all tints must be non-reflective or non-mirrored. Highly reflective tints that create a mirror-like appearance on your windows are not permitted, regardless of the tint color you choose.

Medical Exemptions

Utah does allow medical exemptions for window tint. If you have a medical condition that requires additional UV protection or light sensitivity management, you may be eligible for an exemption that allows darker tint than normally permitted on front windows.

To obtain a medical exemption in Utah, you'll typically need to submit a written request to the Utah Division of Motor Vehicles along with supporting documentation from a licensed physician explaining your medical condition and recommending window tint as a treatment. The specific process and required forms can be obtained by contacting the DMV directly or visiting their website. Once approved, you'll receive documentation to keep in your vehicle proving your medical exemption status.

Penalties for Illegal Tint

If you're pulled over with illegal window tint in Utah, you can receive a citation. While specific fine amounts may vary by locality and citation type, illegal tint is typically treated as a traffic violation. Many officers issue "fix-it tickets" that allow you to correct the problem (by removing or lightening your tint) and show proof of correction to avoid a fine.

If your vehicle fails inspection due to illegal tint, you won't be able to register or renew your registration until the tint is brought into compliance. This means you can't legally drive the vehicle, making it important to address tint issues promptly. Most people choose to have a professional remove or replace their tint rather than attempt DIY removal, which can damage windows.

Find a Qualified Utah Tint Installer

Installing legal window tint requires precision, knowledge of local laws, and quality materials. A professional installer will measure your windows, understand Utah's VLT requirements, and ensure your final result is both beautiful and compliant.

TintingSource.com is your directory of certified window tinting shops across Utah. Browse local shops, read customer reviews, and find installers who specialize in legal, high-quality tint work. Our vetted professionals understand Utah's tint laws inside and out, so you can get the look you want without legal worries.