(A)

1. (1) The public employees retirement board may establish by rule a payroll deduction plan for payment of the cost of restoring service credit under section 145.31 or 145.311 of the Revised Code or purchasing any service credit members of the public employees retirement system are eligible to purchase under this chapter, or for making additional deposits under section 145.583 or 145.62 of the Revised Code. In addition to any other matter considered relevant by the board, the rules shall specify all of the following:

   1. (a) The types of service credit that may be paid for through payroll deduction, including the section of the Revised Code that authorizes the purchase of each type of service credit for which payment may be made by payroll deduction;
   2. (b) The procedure for informing the member's employer and the system that the member wishes to purchase service credit under this chapter or make additional deposits under section 145.583 or 145.62 of the Revised Code through payroll deduction;
   3. (c) The procedure to be followed by the system and employers to determine for each request the amount to be deducted, the number of deductions to be made, and the interval at which deductions will be made. The rules may provide for a minimum amount for each deduction or a maximum number of deductions for the purchase of any type of credit.
   4. (d) The procedure to be followed by employers in transmitting amounts deducted from the salaries of their employees to the system;
   5. (e) The procedure to be followed by the system in crediting service credit to members who choose to purchase it through payroll deduction.
2. (2) If the board establishes a payroll deduction plan under this division, it shall certify to the member's employer for each member for whom deductions are to be made, the amount of each deduction and the payrolls from which deductions are to be made. The employer shall make the deductions as certified and transmit the amounts deducted in accordance with the rules established by the board under this section.
3. (3) Rules adopted under this division shall not affect any right to purchase service credit conferred by any other section of the Revised Code, including the right of a member under any such section to purchase only part of the service credit the member is eligible to purchase.
4. (4) No payroll deduction made pursuant to this division may exceed the amount of a member's net compensation after all other deductions and withholdings required by law.