Ill. Admin. Code tit. 80, § 1540.265
A member who receives compensation from a department under the Uniformed Services and Reemployment Rights Act (P.L. 103-353) shall, for the period they receive such compensation, contribute employee contributions based on the amount of compensation that is credited to their retirement account for that period.
(Source: Added at 46 Ill. Reg. 19224, effective November 18, 2022)