UT · tint law reference
Utah window tint laws
Last verified September 13, 2026 · Utah Code § 41-6a-1635 (as amended, effective May 7, 2025)
Legal tint limits at a glance
VLT is the share of light the window must let through — a lower number is darker film, and the reading includes the factory glass.
| Window | Sedans | SUVs, vans & trucks |
|---|---|---|
| Windshield | Minimum 70% VLT; non-transparent material allowed only along top edge (AS-1 line or top 4 inches) or a 3x4-inch patch in the lower left corner | Minimum 70% VLT; non-transparent material allowed only along top edge (AS-1 line or top 4 inches) or a 3x4-inch patch in the lower left corner |
| Front side | 35% VLT or lighter | 35% VLT or lighter |
| Back side | No limit stated | No limit stated |
| Rear | No limit stated | No limit stated |
Dual side mirrors required if the rear is tinted? Yes — this state requires dual outside mirrors when the rear window is tinted.
Is my tint legal here?
Film darkness and glass darkness multiply. Enter the film you are considering and the VLT of the bare glass to get the number a meter would read.
70 for tinted OEM glass, 80 for clear
Net VLT 14% 20% film × 70% glass
Pass/fail compares net VLT against the limits on this page only. Some states apply a measurement tolerance — see Measurement tolerance below — and none of this replaces a meter reading on your own glass.
The rest of the rule
Reflectivity
Metallic or mirrored appearance is prohibited on any windshield or window
Colors
none specified beyond the metallic/mirrored-appearance ban
Medical exemption
none found on the official UHP page reviewed
Stickers & certification
none found on the official UHP page reviewed
Measurement tolerance
+/- 5% on front side windows, as measured by a peace officer's meter
Penalties
Infraction under Utah law
Notes
Utah lowered the front-side-window minimum from 43% to 35% effective May 7, 2025 (confirmed on the official Utah Highway Patrol page, which is more current than several older secondary sources still citing 43%). Rear/back-side windows may be any darkness (non-transparent materials permitted) but the vehicle must then have both left and right outside mirrors. No sedan-vs-SUV/van distinction found.
Utah tint questions
What is the darkest legal tint in Utah?
For a sedan in Utah, front side windows must let at least 35% of light through, no number is stated for the back side windows, and none for the rear window. Lower VLT means darker glass, so those percentages are floors, not targets, and the meter reads the film and the factory glass together.
Is 20% tint legal in Utah?
No, not on the front side windows. Utah requires at least 35% VLT there and 20% is darker than that, before you even account for the factory glass, which makes the reading darker still. Behind the driver the statute states no VLT number, so 20% may be allowed on the back side and rear windows — read the notes on this page and confirm with the DMV.
Can I tint the windshield in Utah?
Utah's rule for the windshield: Minimum 70% VLT; non-transparent material allowed only along top edge (AS-1 line or top 4 inches) or a 3x4-inch patch in the lower left corner
Does Utah allow a medical exemption for darker tint?
What the source says: none found on the official UHP page reviewed Confirm the current process with the agency named before you have film installed.
Do I need a tint sticker or certificate in Utah?
none found on the official UHP page reviewed
Where this comes from
Statute cited: Utah Code § 41-6a-1635 (as amended, effective May 7, 2025)
Checked against the state's own statute or DMV page on September 13, 2026. Laws change; if you find a newer rule, email admin@getpeelboard.com.
Legal disclaimer: general information, not legal advice; verify with your DMV.