Adult & Medical Cannabis References

Under the new law, Illinois residents over the age of 21 can legally possess:
- 30 grams of cannabis flower
- 5 grams of cannabis concentrate (oil)
- 500 milligrams of THC in cannabis-infused products (edibles)

A person may not attempt any task under the influence of cannabis that would constitute malpractice, negligence or professional misconduct.

A person may not use in any public place – any place where a person could reasonably be expected to be seen by others. (RESTAURANTS, BARS, MOVIE THEATERS, PARKING LOTS, SIDEWALKS, STREETS, STORES, BASICALLY ANYWHERE WHERE THERE ARE PEOPLE IN A PUBLIC PLACE)

A person may not use or possess in a correctional center, school, home daycare.

A person may not use near anyone who is less than 21 years old.

A person may not use anywhere prohibited by Smoke-Free Illinois.

A driver may not operate a motor vehicle while impaired by the use of cannabis, whether used medically or recreationally. Cannabis may only be transported in a vehicle when contained in a sealed, odor-proof, child resistant container that is inaccessible to the driver. No driver or passenger may use cannabis in a motor vehicle. If a police officer stops a vehicle and the officer has reasonable suspicion to believe the person is impaired by the use of cannabis, the driver must submit to field sobriety testing and/or validated roadside chemical tests. Refusal to submit to testing or failure of field sobriety tests and/or validated roadside chemical tests will result in the suspension of the person’s driver’s license.

Driving while impaired by the use of cannabis or illegal transportation of cannabis in a motor vehicle may result in the loss of driving privileges, and for a medical cannabis registry card holder, the revocation of the driver’s medical cannabis card. 


Cannabis Regulation & Tax Act