210 ILCS 85/4
No person shall establish a hospital without first obtaining a permit from the Department and no person shall open, conduct, operate, or maintain a hospital without first obtaining a license from the Department.
Nothing in this Act shall be construed to impair or abridge the power of municipalities to license and regulate hospitals, provided that the municipal ordinance substantially complies with the minimum standards and regulations developed by the Department pursuant to the provisions of this Act. Such compliance shall be determined by the Department subject to review as provided in Section 13 of this Act. Section 13 of this Act shall also be applicable to the judicial review of final administrative decisions of the regulatory agency of the municipality. Any municipality having an ordinance licensing and regulating hospitals which provides for minimum standards and regulations substantially in compliance with those developed pursuant to this Act shall make such periodic reports to the Department as the Department deems necessary. This report shall include a list of hospitals meeting standards substantially equivalent to those promulgated by the Department under this Act, and upon the receipt of such report the Department may then issue a license to such hospital.
210 ILCS 85/4