(5 ILCS 179/50)
A home rule unit of local government, any non-home rule municipality, or any non-home rule county may regulate the use of social security numbers, but that regulation must be no less restrictive than this Act. This Act is a limitation under subsection (i) of Section 6 of Article VII of the Illinois Constitution on the concurrent exercise by home rule units of powers and functions exercised by the State.
(Source: P.A. 96-874, eff. 6-1-10