20 ILCS 2310/2310-15
To have the general supervision of the interests of the health and lives of the people of the State and to exercise the rights, powers, and duties of those Acts that it is by law authorized to enforce. The Department shall have the general authority to delegate to certified local health departments the duties and powers under those Acts it is authorized to enforce for the purpose of local administration and enforcement. Upon accepting the delegation of duties and powers, certified local health departments shall administer and enforce the minimum program standards promulgated by the Department under the provisions of those Acts. Certified local health departments may establish reasonable fees for the permits, licenses, or other activities performed under the delegation agreement. Upon delegation of duties and powers, the Department may waive any portion of its fees established by statute or rule .
20 ILCS 2310/2310-15