Michigan Compiled Laws, Chapter 38. Civil Service and Retirement § 38.35a

Sec. 35a. (1) Beginning with the first pay date after April 1, 2012 and ending upon the member's termination of employment or attainment date, as applicable under section 50a,  1 each member who made the election under section 50a shall contribute an amount equal to 4% of his or her compensation to the employees' savings fund to provide for the amount of retirement allowance that is calculated only on the credited service and compensation received by that member after March 31, 2012. The member shall not contribute any amount under this subsection for any years of credited service accrued or compensation received before April 1, 2012.

(2) The retirement system and state budget director shall determine a method of deducting the contributions provided for in this section from the compensation of each member for each payroll and each payroll period.

(3) The state shall pick up the member contributions required by subsection (1) for all compensation received on or after April 1, 2012. Contributions picked up shall be treated as employer contributions in determining tax treatment under the internal revenue code. The state shall pay these member contributions from the same source of funds that is used in paying compensation to the member.

(4) A member is entitled to the benefit of all contributions made under this section in the same manner as provided under section 11(2). 2