Sec. 21. (a) Except as provided in subsection (d), the monthly benefit payable after June 30, 1987, to a participant, or a survivor or beneficiary of a participant, who retired or was disabled before July 2, 1986, shall be increased by an amount determined by the board. The board shall determine the amount for each participant, survivor, and beneficiary so that the monthly benefit is increased by one-half (1/2) the amount that the monthly benefit would have been increased if the participant had been a member of the public employees’ retirement fund on the date of retirement or disability.

     (b) Except as provided in subsection (d), the monthly benefit payable after June 30, 1988, to a participant, or a survivor or beneficiary of a participant, who retired or was disabled before July 2, 1987, shall be increased by an amount determined by the board. The board shall determine the amount for each participant, survivor, and beneficiary so that the monthly benefit is increased to the amount that the monthly benefit would have equaled if the participant had been a member of the public employees’ retirement fund on the date of retirement or disability.

     (c) Except as provided in subsection (d), the monthly benefit payable after June 30, 1989, to participants, survivors, and beneficiaries shall be increased by the same percentages and under the same conditions as monthly benefits are increased under IC 5-10.2-5 for members of the public employees’ retirement fund and their survivors and beneficiaries.

     (d) This section is applicable only if the general assembly provides sufficient funding for the increased cost of the benefits provided by this section.

As added by P.L.56-1987, SEC.6. Amended by P.L.4-1990, SEC.4.