(40 ILCS 5/13-315) (from Ch. 108 1/2, par. 13-315)
Sec. 13-315. Waiver of annuity. Any competent employee annuitant or surviving spouse annuitant may execute a waiver of the right to receive any part of the total annuity. The waiver shall be effective when filed with the Board. A waiver once filed may not be revoked, except within the first 30 days after being filed.
(Source: P.A. 87-794.)