To maintain records to substantiate all claims for state apportionment in accordance with regulations prescribed by the State Board and to retain such records for a period of 3 years.
110 ILCS 805/3-22
To maintain records to substantiate all claims for state apportionment in accordance with regulations prescribed by the State Board and to retain such records for a period of 3 years.
110 ILCS 805/3-22