Ill. Admin. Code tit. 23, § 525.10
b) Each Regional Office of Education (ROE), Intermediate Service Center (ISC) and CPS shall ensure the provision to all school districts (or in the case of CPS, its schools) of the services and programs listed in this subsection (b). These services may be provided either directly or in cooperation with one or more ROEs or ISCs. These services and programs shall include those listed in subsections (b)(1) through (b)(3) and may include the provision of other administrator and teacher training programs, data collection, on-site consultation, evaluation services, implementation of the improvement practices selected by school district staff and other services identified by school personnel as critical to the completion of their school improvement efforts.