(430 ILCS 50/5.11)
Units of local government; hazard signage systems.
(a) A unit of local government may adopt ordinances or regulations
requiring a hazard signage system applicable to equipment, facilities,
structures, or locations involved in the use, storage, or manufacture of
hazardous materials. The hazard signage system (such as, but not limited
to, the National Fire Protection Association standard "NFPA 704"
specified in its Standard System for the Identification of the Fire Hazards of
Materials for Emergency Response) shall be consistent with any such
signage required by federal law or regulation.
(b) An ordinance or regulation adopted by a unit of local government
under this Section requiring a hazard signage system may not take effect
sooner than 90 days after its adoption by the unit of local government.
(c) A home rule unit may not regulate hazard signage systems in a
manner inconsistent with the regulation of those systems by the State under
this Act or by the federal government. This Section 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. 90-449, eff. 8-16-97.)