The downtown area is expected to be excluded from the seven zones across Chicago where recreational marijuana will be sold.
Attorneys have filed a lawsuit against Juul Labs on behalf of 18-year-old Adam Hergenreder.
The same company operates all five of the recreational marijuana dispensaries.
Cook County officials estimate the process will be complete by 2021.
The bill makes the state's program permanent and adds new qualifying conditions to the list.
But recreational users looking to grow their own cannabis are out of luck.
In 2014, Thomas Franzen ordered 40 pounds of THC-infused chocolates from California to self-medicate his cancer symptoms.
Illinois is set to be the eleventh state to legalize recreational cannabis.
On the last day of the spring legislative session, Illinois lawmakers are set to vote on recreational weed.
Home grow would still be off-limits for recreational users