40 ILCS 5/24-104.1
The Plan developed under Section 24-104 shall also provide for the recovery of the expenses of its administration by charging such expenses against the earnings from investments or by charging fees equitably prorated among the participating State employees or by such other appropriate and equitable method as the Board shall determine. Different methods for recovery of administrative expenses may be provided in relation to different types of investment programs and the Board may provide for the allocation of administration expenses among varying types of programs for this purpose.
All sums advanced by appropriation to the State Board of Investment for the costs of the development and establishment of the Plan shall be repaid to the State Treasury not later than June 30, 1986, without interest. The Plan shall provide for such repayment and may, for that purpose, provide for the recovery of the development and establishment costs by amortizing them as a part of the administrative expenses of the Plan over a period of years ending not later than June 30, 1986.
40 ILCS 5/24-104.1