The new concealed carry law goes into effect in the new year, but where it's OK to carry a gun might be a little more difficult to figure out. According to the Chicago Tribune:
"After a hard-fought battle, Illinois residents next month can begin applying for permits to carry concealed guns in public. But those who do could face another challenge: figuring out where it's legal to carry a firearm and where having a gun could land them in jail.
While the Illinois statute lays out nearly two dozen places where guns are prohibited — including schools, public parks, government offices and hospitals — it also includes caveats that might seem confusing, even contradictory, particularly to novice gun carriers.
For example, the law prohibits guns at events where there is a large gathering of people, like neighborhood street festivals. But it allows people with guns to walk through a public gathering on the way home, to work or to their car."