(a) Notwithstanding any provision of law to the contrary, a member of a pension plan listed in section 356.30, subdivision 3, with at least two years of forfeited service taken from a single pension plan, may repay a portion of all refunds. A partial refund repayment must comply with this section.
(b) The minimum portion of a refund repayment is one-third of the total service credit period of all refunds taken from a single plan.
(c) The cost of the partial refund repayment is the product of the cost of the total repayment multiplied by the ratio of the restored service credit to the total forfeited service credit. The total repayment amount includes interest at the annual rate of 8.5 percent for any period for the Teachers Retirement Association and is 8.5 percent until June 30, 2015, and eight percent thereafter for any other retirement plan listed in section 356.30, subdivision 3, compounded annually, from the refund date to the date repayment is received.
(d) The restored service credit must be allocated based on the relationship the restored service bears to the total service credit period for all refunds taken from a single pension plan.
(e) This section does not authorize a public pension plan member to repay a refund if the law governing the plan does not authorize the repayment of a refund of member contributions.