1. a) A calendar of hours worked/paid verifying post-retirement employment.
2. b) Other substantiating documentation such as timesheets, payroll records, contracts, etc.

To ensure compliance with the post-retirement employment limitations established in 40 ILCS 5/16-118, upon demand of the System, employers are required to furnish documentation sufficient to verify an annuitant's compliance, such as:

(Source: Amended at 50 Ill. Reg. 4774, effective March 13, 2026)