55 ILCS 5/5-1082
For the purpose of enabling the county board to pay in cash such warrants and other demands as may be presented for payment in cash, the county board is authorized to establish a cash reimbursement fund, and to appoint the finance director or if there is no finance director, the county clerk, as custodian of such fund. Such custodian shall be bonded and the bond approved by the county board. The amount of said cash reimbursement fund shall at no time exceed the sum of $2,000. No single claim paid out of this fund shall exceed $100. The custodian shall keep proper records of such fund, showing the amounts received from the county treasury, the amounts paid out by him by check from day to day and the county funds and accounts charged on account of such payments.
The custodian shall make regular reports to the county board, at least quarterly, and the county official responsible for auditing county records shall audit the books and records of the custodian from time to time as he sees fit, but at least quarterly.
The county board may, by resolution, prescribe rules and regulations relating to the cash reimbursement fund.
55 ILCS 5/5-1082