70 ILCS 1205/8-8
Any park district, when so requested by its treasurer, shall designate one or more banks or savings and loan associations in which the funds of the district may be deposited. When a bank or savings and loan association has been designated as a depository it shall continue as such until 10 days have elapsed after a new depository is designated and has qualified by furnishing the statements of resources and liabilities required by this section. When a new depository is designated, the district shall notify the sureties of its treasurer of that fact, in writing, at least 5 days before the transfer of funds. Such treasurer shall be discharged from responsibility for all such funds and moneys deposited in a bank or savings and loan association, so designated, while such funds and moneys are so deposited.
No bank or savings and loan association shall receive public funds as permitted by this Section, unless it has complied with the requirements established pursuant to Section 6 of "An Act relating to certain investments of public funds by public agencies", approved July 23, 1943, as now or hereafter amended.
Notwithstanding any provision of this Act or of any other law, each official custodian of park district funds, including, without limitation, each park district treasurer and each person properly designated as the official custodian for park district or joint recreational program funds, including, without limitation, each person properly designated as official custodian of funds for joint recreational programs established pursuant to the provisions of Sections 8-10b and 8-18 of this Act and each person properly designated as custodian for funds held by an intergovernmental risk management association or self-insurance pool composed solely of participating park districts, forest preserve districts or joint recreational programs, is permitted to (i) combine moneys from more than one fund of a single park district, joint recreational program, risk management association or self-insurance pool for the purpose of investing such moneys, (ii) enter into agreements of any definite or indefinite term regarding the deposit, redeposit, investment, reinvestment or withdrawal of park district, risk management association, self-insurance pool or joint recreational program funds and (iii) join with any custodians or treasurers of park district, Chicago Park District, joint recreational program, risk management association, self-insurance pool or forest preserve district funds for the purpose of investing any park district, risk management association, self-insurance pool or joint recreational program funds in his custody. When funds are combined for investment purposes as authorized herein, the moneys combined for such purposes shall be accounted for separately in all respects, and the earnings from such investment shall be separately and individually computed and recorded, and credited to the fund, district, joint recreational program, risk management association, self-insurance pool or other entity, as the case may be, for which the investment was acquired. The grant of authority contained in this Section is cumulative and supplemental and in addition to all other power or authority granted by any other law and shall not be construed as a limitation of any power or authority otherwise granted.
70 ILCS 1205/8-8