Ind. Code § 5-10.2-2-8
(b) A member of the Indiana state teachers' retirement fund who has served as a member of the general assembly and who retires after June 30, 1980, may choose at the member's retirement date whether to retire from the Indiana state teachers' retirement fund or from the public employees' retirement fund. If the member chooses to retire from the public employees' retirement fund, that fund is responsible for the payment of benefits provided in IC 5-10.2-4 , and the Indiana state teachers' retirement fund shall pay to the public employees' retirement fund the proportionate actuarial cost of the member's pension.
As added by Acts 1977, P.L.53, SEC.2. Amended by Acts 1980, P.L.28, SEC.2; P.L.35-1985, SEC.7; P.L.115-2008, SEC.5; P.L.40-2017, SEC.5.