35 Ill. Adm. Code 320.204
Audit and Access to Records
Section 320
Section 320.204 Audit and
Access to Records
a) Each applicant for which a fee is due under this Part shall
preserve and maintain all records relating to calculation of the fee for at
least 5 years after the date on which the permit application is received by the
Agency.
b) The records described in subsection (a) of this Section shall
be available to the Agency or its authorized representative (e.g., auditor,
contractor) for examination during normal business hours.