Utah Window Tint Laws Explained: Legal VLT Limits for 2026
Utah holds your front side windows to 35% VLT and your windshield to 70%, but the May 2025 amendment changed how tint stops work. Here is the current law in full.
On this page
The high-desert sun over the Wasatch Front is relentless, and Utah drivers got some good news in 2025: the front-window rules are the same, but how police can act on tint changed. Today your front side windows must allow at least 35% VLT, the windshield has to stay at 70%, and the rear glass behind you can be any shade. Here is the current law, including the May 2025 amendment.
How dark can you legally tint in Utah?
Front side windows down to 35% VLT, a 70% windshield, and any shade you like on the rear glass. Utah Code § 41-6a-1635, as amended by H.B. 112 effective May 7, 2025, bars operating a vehicle with a windshield under 70% light or a front side window under 35% — with no more than a 5% variance when an officer meters it. The law expressly allows nontransparent material on the rear windows, including the rear-side windows behind the driver, so the back of the vehicle has no darkness limit. Windshield film is limited to the top 4 inches or the AS-1 line, whichever is lowest. You can read the section on the Utah State Legislature code site.
| Window | Legal limit (VLT) | Notes |
|---|---|---|
| Windshield | 70% min | Top 4 in. or AS-1 line only; no metallic look |
| Front side windows | 35% min | 5% metering variance; secondary enforcement |
| Rear-side windows | No limit | Any darkness behind the driver |
| Rear window | No limit | Any darkness |
What changed in Utah and what drivers still get wrong
Myth: a cop can pull you over just for dark front windows now. Reality – not since May 2025. The amended statute makes front side-window tint secondary enforcement, meaning an officer can only act on it after stopping you for a different Title 41 violation or another offense. Tint alone is no longer a valid reason to stop you.
Myth: a tint ticket can cost you your registration. Reality – the new law specifically bars an officer from asking the Motor Vehicle Division or Driver License Division to revoke or suspend your registration or license over a windshield or front-window tint violation.
Myth: mirrored film is fine if it is light enough. Reality – Utah bans any window that presents a metallic or mirrored appearance, full stop. Darkness is not the issue; the reflective look itself is illegal.
Reflectivity, color, and the windshield rule
Utah’s reflectivity rule is a flat ban on metallic or mirrored appearance rather than a percentage, so any chrome-look film is out regardless of VLT. Windshield film is confined to the top 4 inches or the AS-1 line, and a vehicle with tint on any window must carry left and right outside mirrors. Beneath the state rule, the statute defers to federal standards for window composition and light transmittance — the National Highway Traffic Safety Administration’s glazing rule, FMVSS 205 (49 CFR 571.205) — for manufacturers and dealers. A clean window tint install keeps all of it square.
Penalties and what you must keep
A tint violation in Utah is an infraction, and the 2025 changes soften how it is enforced, but the front-window numbers themselves did not move.
35% VLT
Front side limit
70% VLT
Windshield
5%
Variance
No limit
Rear glass
Infraction
Penalty
What to do: hold the front side windows at 35% and the windshield at 70%, and take full advantage of the open rear glass for privacy and heat control. Make sure both outside mirrors are mounted, since any tint triggers that requirement. Skip metallic and mirrored films entirely — they are banned by appearance — and know that under the 2025 amendment, tint alone cannot be the reason for a stop and cannot cost you your registration. The Utah Department of Public Safety oversees the Driver License Division.
| Vehicle type | Front sides | Rear glass |
|---|---|---|
| Sedan / coupe | 35% VLT | Any darkness |
| SUV / truck / van | 35% VLT | Any darkness |
| Windshield (all) | 70% VLT | — |
Good Questions, Straight Answers
Is 35% tint legal on front windows in Utah?
Yes. Front side windows must allow at least 35% light, with up to a 5% variance when an officer meters them.
How dark can rear windows be in Utah?
There is no darkness limit on the rear windows, including the rear-side glass behind the driver, so they can be any shade.
Did Utah’s tint law change in 2025?
Yes. Effective May 7, 2025, front side-window tint became secondary enforcement, and an officer cannot seek to revoke or suspend your registration or license over a tint violation.
Does Utah have a medical tint exemption?
No. The statute does not include a medical exemption, so the standard limits apply to every driver.
Is mirrored or metallic tint legal in Utah?
No. Any window that presents a metallic or mirrored appearance is prohibited regardless of how much light it lets through.
Utah’s 2025 update is one of the more driver-friendly shifts in the country — compare it to our Texas window tint laws and California window tint laws guides. When you are ready to build, explore our window tint options, check pricing, ask about ceramic coating for the high-desert sun, and get started.
Ready For Your Exact Quote?
Sixty seconds of questions, one honest number, from DFW's 5.0-rated installer.
Get My Free Quote