Indiana Code Title 5. State and Local Administration § 5-10.4-4-1

(1) legally qualified and regularly employed teachers in the public schools;

(2) persons employed by a governing body, who were qualified before their election or appointment;

(3) legally qualified and regularly employed teachers at Ball State University, Indiana State University, University of Southern Indiana, and Vincennes University;

(4) legally qualified and regularly employed teachers in a state educational institution whose teachers devote their entire time to teaching;

(5) legally qualified and regularly employed teachers in state benevolent, charitable, or correctional institutions;

(6) legally qualified and regularly employed teachers in an experimental school in a state university who teach elementary or high school students;

(7) as determined by the board, certain instructors serving in a state educational institution extension division not covered by a state retirement law;

(8) employees and officers of the department of education and of the fund who were qualified before their election or appointment;

(9) a person who:

(10) persons who are employed by the fund.