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Illinois law (625 ILCS 5/12-503) bans all front-windshield film except a nonreflective strip within the top 6 inches. Front side windows may be tinted to at least 35% VLT if every rear window stays at 35%+, or at least 50% VLT if every rear window stays at 30%+, with a 5% meter tolerance. The same limits apply to every vehicle type, and reflective film is banned outright.
Source: 625 ILCS 5/12-503 (current through P.A. 103-32, eff. 1/1/2024). Summary last checked against these sources on September 23, 2026.
| Window | Rule |
|---|---|
| Windshield | Sec. 12-503(a): no sign, poster, window application, reflective material, nonreflective material, or tinted film may be placed on the front windshield at all, except a nonreflective tinted film confined to the uppermost 6 inches measured down from the top of the glass. The statute sets no VLT percentage for that strip -- it only limits position (max 6 inches) and bars reflective material. |
| Front side windows (immediately adjacent to the driver) | Sec. 12-503(a-5) allows exactly two darkness/pairing options, each with a 5% variance the metering officer must observe: (1) nonreflective film down to 50% VLT if none of the windows behind the driver read below 30% VLT; or (2) nonreflective film down to 35% VLT if none of the windows behind the driver read below 35% VLT. (a-5)(4) adds a third path: if the rear glass is manufacturer-original nonreflective smoked/tinted glass, the front sides may go to 50% VLT regardless of that glass's actual reading. (a-5)(3) is marked '(Blank)' -- a repealed provision, not an operative rule. |
| Rear side windows & rear (back) window | No standalone minimum is stated. Sec. 12-503(a-5)(1)-(2) instead makes the front-side allowance conditional on the rear windows: every window behind the driver must read 30%+ VLT to unlock the 50% front-side allowance, or 35%+ VLT to unlock the 35% front-side allowance. Separately, Sec. 12-503(b) permits a perforated screen or other decorative application on the rear windows at any darkness if the front side windows are left untreated, provided Sec. 12-503(b-5) is met (see Exemptions/other-mechanism note below). |
| Vehicle class (sedans vs. SUVs/trucks/vans) | Sec. 12-503(a-5) draws no distinction by body style anywhere in its text. Passenger cars, vans, SUVs, and trucks are all bound by the identical front-side/rear-window pairings -- Illinois does not give multipurpose vehicles the looser rear-window allowance many other states use. |
| Reflectance | Sec. 12-503(a) and each operative clause of (a-5) (1, 2, and 4) require the film to be 'nonreflective,' and (a) separately bans 'reflective material' on the windshield outright. The statute gives no numeric reflectance ceiling -- it is a flat, qualitative ban on reflective/mirrored/metallic product rather than a percentage cap. |
| Install sticker / label | No general installer compliance sticker or label is required by Sec. 12-503 for an ordinary legal tint job. Sec. 12-503(h) exempts official state/local compliance stickers from the windshield-obstruction rule in (a). The only sticker the statute ties to tint at all is a Secretary of State distinctive medical-exemption license plate or plate sticker issued under 625 ILCS 5/3-412(k); Sec. 12-503(g-7) requires that plate/sticker to already be on the vehicle before an installer may apply medically-exempt (non-compliant) window treatment. |
| Penalties | Sec. 12-503(j): a first violation of (a), (a-3), (a-5), (a-10), (b), (b-5), or (g-7) is a petty offense fined $50-$500. A second or subsequent violation is a Class C misdemeanor fined $100-$500. A person convicted under (a), (a-5), (b), or (b-5) must also be ordered to bring the vehicle's windows into compliance. |
VLT (visible light transmission) is the percentage of visible light that passes through a window or film; a higher number means lighter tint. Most state limits are measured on the finished window (glass and film together). Where a rule is stated for the film itself, the table says so. Some states also limit reflectance, the share of light bounced back off the surface (a mirror-like look).
This entry covers 625 ILCS 5/12-503, which regulates window tint and sun-shading film on the windshield and on the windows immediately adjacent to and behind the driver of every motor vehicle registered in Illinois -- passenger cars, vans, SUVs, and trucks are all held to one uniform rule. It also covers the statute's carve-outs for manufacturer-original tinted rear glass, out-of-state vehicles, and physician-certified medical exemptions administered through Secretary of State plates and stickers. It does not cover separate provisions of Sec. 12-503 governing dealer test-drive paperwork obstruction (a-3) or objects hanging from the mirror (c)/(c-5), which are outside tint darkness/reflectance rules.
Sec. 12-503(g) exempts a vehicle from the windshield (a) and front-side-window (a-5) limits when it displays a Secretary of State distinctive medical-exemption license plate or plate sticker issued under 625 ILCS 5/3-412(k). To qualify, the owner (or a household member regularly transported in the vehicle) must have a physician-certified condition requiring shielding from direct sun -- the statute names systemic or discoid lupus erythematosus, disseminated superficial actinic porokeratosis, light sensitivity from a traumatic brain injury, or albinism, among others a physician may certify. The certification must be carried in the vehicle at all times, renewed by the physician every 4 years, and filed with the Secretary of State; per (g-7) the plate/sticker must already be issued before an installer may apply the exempt treatment, and per (g), the (a-5) front-side-window exemption specifically is denied if sunglasses or other eye protection would adequately address the condition. Sec. 12-503(f)(2) separately exempts vehicles properly registered in another jurisdiction from Illinois's (a), (a-5), (b), and (b-5) limits entirely. Sec. 12-503(a-5)(4) is a narrower carve-out (not a medical exemption): it lets the front side windows go to 50% VLT when the rear glass is manufacturer-original nonreflective smoked/tinted glass, regardless of that glass's actual reading. Sec. 12-503(b)/(b-5) function as a separate mechanism rather than a formal exemption: if the front side windows are left untreated, any darkness of decorative screen is allowed on the rear windows, but the vehicle must then carry a side mirror on each side conforming to Sec. 12-502. The statute states no exemption for law-enforcement, government, or commercial fleet vehicles.
This page does not cover penalties for a violation. Confirm with the state.
No. 625 ILCS 5/12-503(a-5) applies the same front-side/rear-window VLT pairings to every motor vehicle type -- the statute contains no separate rule for SUVs, vans, or trucks, unlike many other states.
The statute does not set a standalone rear-window minimum. Instead, 625 ILCS 5/12-503(a-5)(1)-(2) makes the front side windows' legal darkness depend on the rear windows: every rear window must stay at 30% VLT or higher to tint the front sides to 50% or higher, or every rear window must stay at 35% VLT or higher to tint the front sides to 35% or higher. If you leave the front side windows untreated, 625 ILCS 5/12-503(b) permits a decorative screen of any darkness on the rear windows, but 12-503(b-5) then requires dual outside mirrors.
Yes. 625 ILCS 5/12-503(a-5) builds in a 5% variance that a law enforcement officer must observe when metering light transmittance on the front side windows.
For an ordinary legal tint job, no -- 625 ILCS 5/12-503 does not require an installer's compliance sticker. A Secretary of State medical-exemption plate or plate sticker (issued under 625 ILCS 5/3-412(k)) is only required when the tint is being installed under the medical exemption in subsection (g), and per subsection (g-7) that plate/sticker must already be on the vehicle before the installer applies the film.
Yes. 625 ILCS 5/12-503(g) lets a physician-certified owner or household member with a qualifying light-sensitivity condition obtain a Secretary of State distinctive plate or plate sticker exempting the vehicle from the windshield and front-side-window limits. The certification must be carried in the vehicle and renewed every 4 years, and (g)'s sunglasses-adequacy denial clause is written to apply to the (a-5) front-side-window exemption specifically.
Read the full Illinois breakdown
Running a tint shop in Illinois? See shop software for Illinois.
This page summarizes Illinois statute and regulation text for general information and is not legal advice. It covers passenger vehicles with aftermarket film (film added after the vehicle left the factory) and includes SUV, van and truck rules where the state sets different ones. Some vehicle types, such as limousines, buses, commercial and law-enforcement vehicles, and factory glass are treated differently in some states, and whether a vehicle registered in another state is covered depends on the state; see “Who this covers” above. Federal glazing rules (FMVSS 205, 49 CFR 571.205) apply separately from state law, and 49 U.S.C. 30122 bars manufacturers, distributors, dealers, rental companies and motor vehicle repair businesses from knowingly making inoperative any part of a device or element of design installed to comply with a federal motor vehicle safety standard, so installers should check both. Laws change and enforcement varies; confirm current requirements with the state before tinting. Before tinting, ask the installer to measure your glass and confirm the finished window will meet the limit; afterward, ask for a reading on a light-transmission meter and keep it.