Mich. Comp. Laws § 38.1049

Sec. 49. (1) All payroll vouchers covering payments of salary to members for their services shall indicate all of the following: (a) The amount of member contributions which are to be deducted from the salary of each member included in the payroll vouchers. (b) The net amount payable to each member after the deduction of the contribution. (c) The total of all member contributions deducted. (2) An additional certified copy of each payroll voucher, by the state, shall be prepared and forwarded along with the original payroll voucher for transmittal to the board as provided in this act.