Ill. Admin. Code tit. 77, § 2060.335
a) All professional staff as specified in Section 2060.320(a) and (b) or any staff working under supervision as specified in Section 2060.320(f) shall:
j) Upon hire, and prior to every license renewal cycle, the organization shall perform background checks for all employees, contractual employees, volunteers, and interns. At a minimum, the review shall include:
l) The organization shall establish and maintain individual personnel records for all employees, volunteers, and interns, paid and unpaid, that minimally include the following components: