Illinois Cannabis Control Act: Penalties and Expungement

The Illinois Cannabis Control Act (720 ILCS 550/) sets the criminal penalties that apply the moment you step outside what the state’s legalization law permits. Penalties under the Illinois Cannabis Control Act run from a $100 to $200 civil fine for 10 grams or less, through misdemeanor jail time in the middle tiers, up to a Class X felony for delivering more than 5,000 grams. Legalization in 2020 through the Cannabis Regulation and Tax Act (410 ILCS 705/) did not repeal the older statute. It carved out a protected zone for adults 21 and over, and the Control Act handles everything outside that zone.

Where Legal Use Ends and the Act Begins

The possession limits in the Regulation and Tax Act define the line. Illinois residents aged 21 and older can lawfully hold up to 30 grams of cannabis flower, 5 grams of concentrate, and 500 milligrams of THC in infused products at any one time. Out-of-state visitors are capped at half those amounts: 15 grams of flower, 2.5 grams of concentrate, and 250 milligrams of THC in infused products.1Illinois.gov. Cannabis Regulation Oversight Office – FAQs The limits are per person, and they only protect cannabis purchased from a licensed dispensary. Product from any unlicensed source is illegal in any quantity.

Both statutes open their penalty sections with the phrase “except as otherwise provided” in the other. In practice that means a resident holding a legal 30 grams who picks up another ounce the same day is sitting on 60 grams, which lands in Class A misdemeanor territory. The jump from lawful possession to a year of potential jail time can happen with a single extra purchase.

Possession Penalties by Weight

The Act grades possession on a weight ladder. Below 10 grams the offense is civil; above it the exposure climbs steeply.

For context, 30 grams is roughly one ounce, so the ladder spans from under an ounce at the civil-fine floor to over 11 pounds at the Class 1 felony ceiling.

Delivery and Manufacturing Penalties

“Delivery” under the Act means any transfer of cannabis from one person to another. Whether money changes hands is irrelevant. Handing a joint to a friend qualifies. Manufacturing covers processing or production outside a licensed facility. The weight-based ladder for delivery and manufacturing is harsher than possession at every equivalent step.

Giving 3 grams to a friend for free is a Class A misdemeanor carrying up to a year in jail. The Act does not care about payment. People who casually share cannabis without realizing they are making a “delivery” get caught by this provision regularly.

Enhanced Penalties Near Schools

Delivering cannabis on school grounds, on a school bus, or on any public road within 500 feet of a school pushes the charge up by multiple felony classes when minors are present or could reasonably be expected to be present. Delivering more than 500 grams in those circumstances is a Class 1 felony (four to fifteen years in prison and up to $200,000 in fines) instead of the Class 2 felony it would be elsewhere.9Illinois General Assembly. 720 ILCS 550/5.2 – Delivery of Cannabis on School Grounds The enhancement reaches school hours and times when minors are reasonably expected on site, such as after-school activities.

Home Cultivation Penalties

Only registered qualifying medical cannabis patients may grow at home in Illinois. Recreational users cannot cultivate at all. Patients who qualify are capped at five plants taller than five inches per household, must keep plants in an enclosed and locked space out of public view, must grow on residential property they own or have the owner’s permission to use, and may only use seeds purchased from a licensed dispensary.1Illinois.gov. Cannabis Regulation Oversight Office – FAQs10Illinois General Assembly. 410 ILCS 705/10-5 – Personal Use of Cannabis

Growing without authorization, or growing more than five plants with it, is punished by plant count:

  • Five or fewer plants without authorization: civil violation, $100 to $200 fine.
  • 6 to 20 plants: Class 4 felony, one to three years in prison.
  • 21 to 50 plants: Class 3 felony, two to five years in prison.
  • More than 50 plants: Class 2 felony, three to seven years in prison and up to a $100,000 fine.
11FindLaw. Illinois Code 720 ILCS 550/8 – Unauthorized Production or Possession of Cannabis Sativa Plant

A landlord can prohibit cultivation entirely, even for a tenant who holds a medical card.

Transporting Cannabis in a Vehicle

Cannabis in a vehicle must be kept in a reasonably secured, sealed container that is not easily accessible while you are driving. The trunk qualifies. A sealed bag in a locked glove compartment qualifies. An open container on the passenger seat does not.1Illinois.gov. Cannabis Regulation Oversight Office – FAQs

Medical cardholders face a stricter container standard: secured, sealed or resealable, odor-proof, and child-resistant, kept inaccessible to anyone in the passenger area. Violating that requirement is a Class A misdemeanor for a cardholder, carrying up to a year in jail and a potential two-year revocation of the medical cannabis card.12Justia. Illinois Compiled Statutes 625 ILCS 5/11-502.1 – Possession of Medical Cannabis in a Motor Vehicle Using cannabis while driving is illegal for everyone, and Illinois treats driving under the influence of cannabis the way it treats drunk driving.

Clearing an Old Cannabis Conviction

Many people reading about current penalties are checking exposure for something that already happened. Illinois reform created two tracks to clear those records.

For arrests involving 30 grams or less where charges were never filed, were dismissed, or ended in acquittal, Illinois ordered automatic expungement of law enforcement records in phases, with the final batch completed by January 2025. Automatic expungement of arrest records does not clear court records; a separate motion to vacate and expunge is required for those.13Illinois Office of the State Appellate Defender. Cannabis Expungement Information and Forms

For convictions involving possession of 500 grams or less, or delivery of less than 30 grams, you can petition the court for expungement by filing a motion to vacate. The State’s Attorney may also file that motion on your behalf. Convictions for larger amounts that still qualify as “minor cannabis offenses” go through the Prisoner Review Board, which can recommend a governor’s pardon authorizing expungement.13Illinois Office of the State Appellate Defender. Cannabis Expungement Information and Forms An old conviction cleared from the record removes barriers to employment, housing, and professional licensing that otherwise persist long after a sentence is served.