Ind. Code § 5-10.2-2-1
(c) The benefits specified in this article and the benefits from the Social Security Act provide the retirement, disability, and survivor benefits for public employees and teachers. However, this article does not prohibit a political subdivision from establishing and providing before January 1, 1995, and continuing to provide after January 1, 1995, retirement, disability, and survivor benefits for the public employees of the political subdivision independent of this article if the political subdivision took action before January 1, 1995, and was not a participant in the public employees' retirement fund on January 1, 1995, under this article or IC 5-10.3 .
As added by Acts 1977, P.L.53, SEC.2. Amended by P.L.66-1995, SEC.2; P.L.65-1995, SEC.2; P.L.119-2000, SEC.2; P.L.23-2011, SEC.7.