Citation(s) from the GunPolicy.org literature library
Giffords Law Center to Prevent Gun Violence. 2020 ‘Safe Storage in Illinois.’ Child & Consumer Safety. San Francisco, CA: Giffords Law Center to Prevent Gun Violence. 4 December
Firearm and Ammunition Storage Regulations in Illinois
Illinois prohibits firearms dealers from selling or offering for sale a handgun unless the dealer includes with the handgun a device or mechanism, other than the firearm safety, designed to render the handgun temporarily inoperable or inaccessible. This may include an external device that is attached to the handgun with a key or combination lock, or an integrated mechanical safety, disabling or locking device. Federal law also applies.
These requirements do not apply to sales by private sellers…
[Editor's note: The Giffords Law Center to Prevent Gun Violence regularly updates its webpages with new data as US gun regulation evolves state by state. For the most up-to-date information on US gun laws, please refer to the Giffords URL below]