Any interest or other investment earnings on proceeds of Bonds issued for the purpose of providing the Board with moneys for school construction and rehabilitation purposes shall be applied as provided in the resolution authorizing such Bonds, which resolution shall require those earnings to be used for the same purpose as the proceeds of those Bonds or for the payment of principal of or interest or redemption premium on any Bonds, either at maturity or an earlier redemption date. Application by the Authority of any proceeds of Bonds issued for the purpose of providing the Board with moneys for school construction and rehabilitation purposes, or interest or other investment earnings thereon, shall be in the sole judgment and discretion of the Authority, but no such moneys shall be so provided unless the Authority shall have found and determined, in its sole judgment and discretion, that such moneys are to be used for those purposes and not for providing the Board with moneys for its ordinary and necessary expenditures for educational purposes, maintenance of school facilities or other operational needs. The Authority may, in making its findings and determinations, rely upon information provided by or on behalf of the Board. The Authority may from time to time make and amend regulations and issue directives with respect to the use and application of such moneys.
The Authority may, at any time, in its sole judgment and discretion, deposit unexpended proceeds of Bonds issued for the purpose of providing the Board with moneys for school construction and rehabilitation purposes or interest or other investment earnings thereon solely in a debt service fund for any Bonds and shall apply such moneys to the payment of principal of or interest or redemption premium on Bonds, at maturity or an earlier redemption date. In the resolution authorizing Bonds, the Authority may make commitments or covenants to holders of Bonds with respect to such use of such unexpended proceeds and interest or other investment earnings.
105 ILCS 5/34A-501