Illinois Smoking Laws: Bans, Exceptions, and Fines

Illinois smoking laws, set by the Smoke Free Illinois Act, ban smoking in almost every indoor public place and workplace in the state and within 15 feet of any entrance, operable window, or ventilation intake. The rules cover traditional cigarettes, e-cigarettes and vapes, and cannabis. A person caught smoking where it is prohibited faces a $100 fine for a first offense; businesses that fail to enforce the ban face $250 and up.

Where You Cannot Smoke

The Act reaches any “public place” or “place of employment,” and both terms are defined broadly. A public place is any part of a building or vehicle used by and open to the public, whether or not admission is charged and whoever owns it. The statute names hospitals, restaurants, bars, retail stores, offices, elevators, theaters, libraries, museums, schools, bowling alleys, skating rinks, gaming facilities, and enclosed shopping centers, among others.¹

A place of employment covers every area an employee moves through during the workday: break rooms, restrooms, conference rooms, lobbies, and common areas.¹ Smoking is also banned in every vehicle owned, leased, or operated by the state or a local government.

The ban does not stop at the door. No one may smoke within 15 feet of any entrance, exit, operable window, or ventilation intake serving a building where smoking is prohibited.² That buffer is written into the definitions of both “public place” and “place of employment,” so it travels with the indoor ban everywhere the indoor ban applies.

College dormitories get their own absolute rule: smoking is banned in every part of a dorm building at any public or private college or university, including sleeping rooms, dining areas, restrooms, laundry rooms, lobbies, and hallways, with no exemptions.¹

Vaping Counts as Smoking

Since January 1, 2024, the Smoke Free Illinois Act has treated e-cigarettes the same as traditional cigarettes. The statutory definition of “smoking” now expressly includes the use of an electronic cigarette.² “Electronic cigarette” is defined broadly to cover any product that delivers nicotine or another substance through inhaled vapor or aerosol, including e-cigars, e-pipes, e-hookahs, and vape pens.³

Every indoor prohibition and the 15-foot buffer apply the same way to vaping, and the same fines follow.

Cannabis Is Not an Exception

Recreational cannabis is legal in Illinois, but that legalization did not open indoor spaces to smoke or vapor. Smoking or vaping cannabis in any indoor public place or workplace is prohibited under the same rules that apply to tobacco, and the 15-foot buffer applies too.

There is one narrow opening. A local government may authorize on-premises cannabis consumption at a licensed dispensary or qualifying retail tobacco store within its jurisdiction. Where that authorization exists, the dispensary or tobacco store is not treated as a “public place” under the Smoke Free Illinois Act for purposes of on-site cannabis consumption.⁴ Most cities and counties have not authorized this.

The Exceptions

The Act’s exemptions are narrower than most people assume.

Private residences, unless the home operates as a licensed child care, foster care, adult care, or healthcare facility, or as any other home-based business open to the public.⁵
Retail tobacco stores operating before January 1, 2008, that get at least 80% of gross revenue from tobacco product sales. Stores that opened after that date qualify only if they occupy a freestanding structure and smoke does not reach any area where smoking is banned. Exempt stores must file an annual affidavit with the Illinois Department of Public Health by January 31 documenting their revenue mix.⁵
Designated hotel and motel smoking rooms, capped at 25% of guest rooms per hotel. All smoking rooms on the same floor must be contiguous, smoke cannot reach nonsmoking rooms, and a nonsmoking room cannot later be converted back to smoking.⁵
A single common smoking room in nursing homes licensed under the Nursing Home Care Act or operated by the Illinois Department of Veterans’ Affairs. Only residents who have requested access in writing may use it, and smoke cannot infiltrate other areas. This exception does not extend to private resident rooms.⁵
Enclosed research laboratories at accredited universities or government facilities where smoking is conducted only for medical or scientific research, provided the lab is not open to the public.¹

Fines for Individuals and Businesses

A person who smokes in a prohibited area is subject to a civil fine of $100 for a first offense and $250 for each additional offense.⁶

Business fines climb faster. An owner, operator, or manager who fails to enforce the ban or meet signage requirements faces:

$250 for a first violation
$500 for a second violation within one year
$2,500 for each additional violation within one year⁶

Violation counts reset after twelve months. A business that stays clean for a year returns to the $250 tier; a business that stacks three violations quickly hits the $2,500 level and can multiply it across incidents.

The Illinois Department of Public Health oversees enforcement statewide and works with local health departments on inspections and complaint investigations. Anyone can file a complaint, and complaints are a primary trigger for enforcement. Dates, times, and locations make a complaint far more useful than a general report.

What Business Owners Have to Do

Two obligations sit on every covered business. Post “No Smoking” signs or the international no-smoking symbol at every entrance, clearly stating that smoking is prohibited indoors and within 15 feet of the entrance. And remove all ashtrays from areas where smoking is banned.¹ Inspectors look for ashtrays specifically. Leaving one out can produce a violation even if no one is smoking when the inspector arrives.

An employer or property owner may voluntarily designate outdoor areas as smoke-free. If they do, the same signage requirements apply.¹

Cities and Counties Can Go Further

The state law is a floor, not a ceiling. Home rule units, non-home rule municipalities, and non-home rule counties may adopt smoking rules as long as they are at least as restrictive as the Act. Local governments can also regulate smoking in enclosed indoor areas the state definitions do not reach.¹ Some have extended their bans to parks, beaches, and outdoor dining. If you run a business, check your municipal and county ordinances, not just the state statute.

Buying Tobacco: Minimum Age 21

Since July 1, 2019, Illinois has prohibited the sale of tobacco products, e-cigarettes, and alternative nicotine products to anyone under 21. Retailers must check government-issued photo ID for any customer who appears to be under 30. Online sales require an independent third-party age verification service that cross-references public records against the buyer’s information.⁷ The rule reaches every tobacco product and every e-cigarette. A vape shop selling to a 20-year-old is violating the same law as a gas station selling cigarettes to a teenager.

1
Illinois General Assembly. Illinois Compiled Statutes 410 ILCS 82 – Smoke Free Illinois Act
2
Illinois General Assembly. Illinois Compiled Statutes 410 ILCS 82 – Smoke Free Illinois Act
3
Illinois Department of Public Health. E-Cigarette Use in Indoor Public Places to Be Banned in Illinois
4
Illinois General Assembly. Illinois Compiled Statutes 410 ILCS 705 – Cannabis Regulation and Tax Act
5
FindLaw. Illinois Compiled Statutes 410 ILCS 82/35 – Exemptions
6
Illinois General Assembly. Illinois Compiled Statutes 410 ILCS 82/45 – Violations, Penalties, and Fines
7
Illinois General Assembly. Illinois Compiled Statutes 720 ILCS 675 – Prevention of Tobacco Use by Persons Under 21 Years of Age and Sale and Distribution of Tobacco Products Act