40 ILCS 5/15-154.2

(40 ILCS 5/15-154.2) (from Ch. 108 1/2, par. 15-154.2)

Sec. 15-154.2. Waiver of service and benefits. A participant or annuitant may elect to waive all or any portion of his or her service credit and benefits which may be payable under this Article; however, service purchased under the provisions of subsection (c) of Section 15-113.1, subsections (b), (c) and (d) of Section 15-113.5, Section 15-113.6, and Section 15-113.7 must be waived before other service which is granted under this Article.

(Source: P.A. 83-1440.)