65 ILCS 5/11-13-1.5

Notwithstanding any provision of law to the contrary, no ordinance or resolution may be adopted or enforced by a municipality after the effective date of this amendatory Act of the 97th General Assembly that affects the placement, screening, or height of antennas or antenna support structures that are used for amateur radio communications unless the ordinance or resolution: (i) has a reasonable and clearly defined aesthetic, public health, or safety objective and represents the minimum practical regulation that is necessary to accomplish the objectives; and (ii) reasonably accommodates amateur radio communications. A municipality may not regulate the antennas or antenna support structures that are used for amateur radio communications in a manner inconsistent with this Section. 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.