Indiana Code Title 5. State and Local Administration § 5-10.3-8-13

Sec. 13.  (a) The pension portion (plus postretirement increases to the pension portion) provided by employer contributions of the monthly benefit payable to a member of the fund (or to a survivor or beneficiary of a member of the fund) shall be increased beginning on January 1, 2003, by the lesser of:

(b) The increase described in subsection (a) is payable to a member of the fund (or to a survivor or beneficiary of a member of the fund) who has been retired or disabled for at least one (1) year on January 1, 2003.