Sec. 12. (a) The monthly benefit payable after June 30, 1983, to a member, or a survivor or beneficiary of a member, who retired or was disabled: (1) before July 2, 1965, shall be increased by three percent (3%); (2) after July 1, 1965, and before July 2, 1970, shall be increased by two percent (2%); and (3) after July 1, 1970, and before July 2, 1975, shall be increased by one percent (1%). (b) In addition to the increase specified in subsection (a), the monthly benefit payable after June 30, 1983, to a member, or a survivor or beneficiary of a member, who retired or
was disabled before July 2, 1982, shall be increased by three percent (3%). (c) The increases specified in this section: (1) shall be based upon the date of the member's initial retirement or disability; (2) do not apply to benefits payable in a lump sum; and (3) are in addition to any other increase provided by law. As added by P.L.50-1983, SEC.1.