30 ILCS 105/6g
The University of Illinois may retain in its treasury, any funds derived from rentals, fees, service charges and laboratory and building service charges, or other sources, assessed or obtained for or arising out of the operation of any building, buildings, facility or facilities used or hereafter acquired and which shall be used to discharge obligations created for the construction, equipment, enlargement, improvement, completion, operation, control or management of any such building, buildings, facility or facilities or for the payment of revenue bonds issued under any laws now in force, or laws hereinafter enacted. Such funds shall be disbursed from time to time pursuant to the order and direction of the Board of Trustees of the University, and in accordance with any contracts, pledges, trusts or agreements heretofore or hereafter made by said Board of Trustees.
The University of Illinois may retain in its treasury any funds received in connection with contracts and grants for research at the Nuclear Physics Laboratory and funds which are paid as reimbursement to the University, and may pledge the funds so retained for the retirement of any bonds issued to finance the construction, equipment, enlargement, improvement, completion, operation, control, or management of the Nuclear Physics Laboratory, and may use the funds for the payment of revenue bonds issued under any laws now in force, or laws hereinafter enacted with respect to the Nuclear Physics Laboratory. The amount retained for this purpose shall not exceed the amount required in the bond obligation.
The University of Illinois may also retain in its treasury, out of student fees and tuition, such sums annually as the Board of Trustees determines will be necessary from time to time to supplement revenues derived from any revenue producing building, buildings, facility or facilities now used or hereafter acquired under the provisions of any laws now in force, or any laws hereinafter enacted, and pledge the sums so retained out of student fees and tuition for the retirement of any bonds issued to finance such buildings or facilities. Such funds so pledged shall be credited annually to any account to which such revenues are or may hereafter be pledged. The Board may authorize such supplementation at the time of issuance of any of its revenue bonds or at any time thereafter upon determination by it that the revenues derived from time to time from the operation of such building, buildings, facility or facilities will be insufficient to meet the costs of operation and maintenance and to pay the principal of and interest on bonds issued and payable separately or collectively from the income and revenue of such building, buildings, facility, facilities, or combination thereof. Such supplementation from University income shall not be in excess of an amount which, when added to the revenues to be derived from the operation of such building, buildings, facility or facilities will be sufficient to meet the annual debt service requirements on its revenue bonds issued in respect to any such building, buildings, facility or facilities, the annual costs of maintenance and operation of such building, buildings, facility or facilities, and to provide for any reserves, accounts or covenants which the resolution authorizing the issue of said bonds may require, plus such sums as the Board of Trustees shall have pledged to such bonds or shall determine shall be retained from year to year to assure adequate supplementation.
30 ILCS 105/6g