Sec. 5. (a) As used in this chapter and except as provided in subsection (b), "system" refers to the Indiana public retirement system established by IC 5-10.5-2-1.
(b) The term does not include the following:
(1) The public employees' defined contribution plan established under IC 5-10.3-12.
(2) An annuity savings account for the public employees' retirement fund established under IC 5-10.2-2-2(a)(1).
(3) The teachers' defined contribution plan established under IC 5-10.4-8.
(4) An annuity savings account for the Indiana state teachers' retirement fund established under IC 5-10.2-2-2(c)(1).
(5) The legislators' defined contribution plan established under IC 2-3.5-5.