What's Legal Before You Tint
Utah Window Tint Laws
Thinking about tint but not sure how dark you can go? Here's Utah's window tint law in plain English, window by window.
Utah Tint Rules at a Glance
Utah's window tint rules come from Utah Code § 41-6a-1635 and apply statewide
Windshield
Non-reflective tint above the AS-1 line (or top 4 inches) only.
Front Side Windows
Must allow at least 35% of visible light through (35% VLT).
Rear Side Windows
Any darkness is allowed.
Back Window
Any darkness is allowed — dual side mirrors are required if tinted.
One more rule that applies everywhere: reflective or mirrored film is not permitted on any window in Utah.
What Does 35% VLT Actually Mean?
VLT stands for visible light transmission — the percentage of light that passes through your glass and film combined. The lower the number, the darker the tint. Utah's 35% minimum on front side windows means at least 35% of visible light has to make it through to you. That's why popular darker shades like 20% or 5% "limo" film are legal behind the driver but not on your front doors.
The good news for Southern Utah drivers: darkness and heat rejection are not the same thing. Our ceramic film uses nano-ceramic technology — not dye — to block up to 95% of infrared heat and 99% of UV rays, so a Utah-legal shade on your front windows can still beat the St. George sun. See our window tinting service page for film options and pricing.
Because it's a state law, the rules are identical whether you drive in St. George, Washington, or Cedar City. During your consultation we'll help you choose a tint that balances heat rejection with legal compliance, so your vehicle leaves our shop street-legal anywhere in Utah.
Want Utah-Legal Tint Without the Guesswork?
We'll help you pick a shade that's street-legal on every window and still beats the Southern Utah heat.