705 ILCS 105/4.1

At the request of the clerk of the circuit court in any county the county board of that county shall designate one or more banks or savings and loan associations in which funds and moneys in the custody of such clerk may be kept. Except as provided below, the clerk of the circuit court shall be discharged from responsibility for all funds and moneys which he or she deposits in that designated depository, while such funds and moneys are on deposit therein. When a bank or savings and loan association has been designated as a depository it shall continue as such until 10 days after a new depository is designated and has qualified as provided above. When a new depository is designated, the county board shall notify the sureties of the clerk of the circuit court of that fact, in writing, at least 5 days before the transfer of funds. 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. (Source: P.A. 83-1362.)