(a) Return to school service.--
(1) A participant receiving distributions or an inactive participant who returns to school service shall cease receiving distributions and shall not be eligible to receive distributions until the participant subsequently terminates school service, without regard to whether the participant is a mandatory, optional or prohibited member of the system or participant in the plan.
(2) This subsection shall not apply to a distribution that the participant has received or used to purchase an annuity from a provider contracted by the board.
(b) Return of benefits paid during USERRA leave.--
(1) If a former school employee is reemployed from USERRA leave and received any payments or annuity from the plan during the USERRA leave, the employee shall return to the board the amount so received plus interest as provided in the plan document.
(2) The amount payable shall be certified in each case by the board in accordance with methods approved by the actuary and shall be paid in a lump sum within 30 days or, in the case of an active participant, may be amortized with interest as provided in the plan document through salary deductions to the trust in amounts agreed upon by the active participant and the board, but not longer than a period that starts with the date of reemployment and continuing for up to three times the length of the active participant's immediate past period of USERRA leave. The repayment period shall not exceed five years.