Indiana Code Title 5. State and Local Administration § 5-10.4-4-3

Sec. 3. (a) Except as provided in subsection (b), a member who served the public schools in a capacity that subsequently was designated by the state as a service for which a license is specified, is eligible to receive service credit for the total length of that service.

(b) A member whose service was recognized as creditable on March 11, 1953, may receive for prior uncredited years served in the same capacity service credit that is not more than the minimum number of years required for a retirement benefit.

(c) If a person presents a claim for prior service in the form established by the board, the board shall issue to the person a certificate of the amount of prior service allowed by the board.

(d) A member may waive the member's rights to prior service, only if the waiver is made at the time of transfer to the fund.

(e) A member shall retain all service credit earned under the law before July 1, 1975.