Licensees shall maintain the records that are required in this Part for the period specified by the appropriate section. If a retention period is not otherwise specified, these records shall be retained until IEMA terminates the facility's license pursuant to 32 Ill. Adm. Code 330.325. IEMA may, in writing, approve or require a shorter or longer retention period, depending on whether the records are needed to determine compliance.
Ill. Admin. Code tit. 32, § 337.5020