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No. Tinted or smoked tail lights are not legal on a vehicle driven on public roads in Illinois. The law does not set a legal darkness. It bans the smoked or tinted lens outright.
Illinois bans smoked and tinted lenses outright
625 ILCS 5/12-212(d) prohibits driving or moving a motor vehicle on a highway with any lighting that has a smoked or tinted lens or cover. That subsection took effect on 1 January 2020.
625 ILCS 5/12-201(b) separately requires two tail lamps throwing red light visible for at least 500 feet to the rear.
Are tinted tail lights legal in Illinois?
No. There is no legal tail light tint percentage in Illinois, because the statute bans the tinted cover itself rather than limiting how dark it can be.
This trips people up because window tint works the other way. Glass is regulated by visible light transmission, so there is a legal shade. Lighting is regulated as safety equipment. Our Illinois window tint law guide covers the VLT rules that apply to window tinting, and none of them carry over to your lamps.
It also applies on every public road, not just expressways. The Vehicle Code defines a highway as the entire width of any publicly maintained way open to vehicular travel.
What is legal and what is not
Not legal on the road
- Smoke or tint film over a tail light lens
- Aerosol or dip tint sprayed on the lens
- Snap-on smoked lens covers
- Blacked-out or opaque lenses
- Smoked film on headlights or turn signals
Legal on the road
- Factory lenses left as built
- DOT-compliant replacement lenses
- Clear, non-tinted protective film
- OEM smoked housings fitted by the manufacturer
- Blacked-out trim instead of lamps
Headlights are covered twice. Section 12-212(d) applies, and 625 ILCS 5/12-201(d) requires head lamps that meet US Department of Transportation regulations under 49 CFR 571.108 and show white, yellow or amber light.
The visibility your lamps still have to hit
Minimum visibility under the Illinois Vehicle Code
Five hundred feet is about a block and a half, measured in bright daylight. That is exactly when a smoked lens performs worst.
What you can do instead
Most people asking about tail light tint want one of two things: protection for an expensive lens, or a darker rear end. The first has a clean answer.
Clear, non-tinted film is not a smoked or tinted cover, so on its face it sits outside the ban, and it does not cut light output. Same logic as paint protection film. If you want the darker look, a chrome delete gets you most of the way there without touching regulated lighting. We will talk both through on your car at our headlight and tail light service.
On penalties: under 625 ILCS 5/16-104, a first or second conviction is a petty offense and a third within one year is a Class C misdemeanor. The fine depends on the court and municipality, so any fixed dollar figure you read online is a guess.
Frequently asked questions
Are smoked tail lights the same as tinted tail lights?
In practice, yes. Smoked usually means a lighter gray film and tinted is used interchangeably. Illinois law names smoked and tinted lenses and covers together, so both are treated the same.
Are tinted tail lights legal in Chicago?
No. The Illinois Vehicle Code applies statewide, so the same rule covers Chicago, Highland Park and every North Shore suburb.
What tail light tint percentage is legal in Illinois?
There is no legal percentage. Illinois sets visible light transmission limits for window glass, not for lighting. The statute bans a smoked or tinted lens at any darkness.
Will tinted tail lights fail an Illinois vehicle inspection?
Illinois does not run a periodic safety inspection for ordinary passenger cars. The emissions test required in parts of Cook, DuPage, Lake and Kane counties is an on-board diagnostics check and does not examine lighting. Enforcement happens at the roadside.
Can tail light tint be removed?
Film usually lifts off with heat and leaves the lens undamaged. Sprayed-on tint is harder and often means refinishing or replacing the lens. Bring it in and we will tell you which one you have before quoting.
Check the law yourself
- 625 ILCS 5/12-212, Special restrictions on lamps, the smoked and tinted lens ban.
- 625 ILCS 5/12-201, When lighted lamps are required, tail lamp and head lamp requirements.
- Illinois Vehicle Code, Chapter 12: Equipment of Vehicles, the full current chapter including 12-208 signal lamps.
- Illinois General Assembly, Illinois Vehicle Code, the official statute database.
