Ind. Code § 5-10.2-4-1
(a) This subsection applies to:
(2) members of the Indiana state teachers' retirement fund who retire before May 2, 1989.
A member who has reached age sixty-five (65) and has at least ten (10) years of creditable service is eligible for normal retirement.
(b) This subsection applies to members of the Indiana state teachers' retirement fund who retire after May 1, 1989, and to members of the public employees' retirement fund who retire after June 30, 1995, except as provided in section 1.7 of this chapter. A member is eligible for normal retirement if:
(3) The retirement date is not more than six (6) months before the date the application is received by the board. However, if the board determines that a member is incompetent to file for benefits and choose a retirement date, the retirement date may be any date that is the first of the month after the time the member became incompetent.
As added by Acts 1977, P.L.53, SEC.2. Amended by Acts 1980, P.L.28, SEC.5; P.L.48-1985, SEC.1; P.L.342-1989(ss), SEC.2; P.L.4-1990, SEC.7; P.L.10-1995, SEC.4; P.L.73-2002, SEC.2.