Sec. 9. (a) This section:
(1) does not apply to a retired member who begins a period of reemployment in a covered position more than thirty (30) days after the member's retirement, except as provided in subdivision (2); or
(2) applies to the entire period of reemployment for a retired member of the public employees' retirement fund who, before July 1, 2013, begins a period of reemployment in a covered position.
(b) Each member shall contribute three percent (3%) of the member's compensation to the fund as specified in IC 5-10.2-3. However, for a member who is a state employee, the employer shall pay the contribution for the member, and for a member who is not a state employee, the employer may pay all or a part of the contribution for the member.