120. The days during which an employee, after becoming a member of the Government and Public Employees Retirement Plan, was on leave without pay for a period ending before 1 July 1983, provided the leave has not otherwise been credited under this plan, shall be credited under this plan, at the request of the employee, on terms and conditions determined by regulation, if the employee(1) was authorized for such purpose by his or her employer ;
(2) pays, in the case of a period of leave prior to 1 July 1982, an amount equal to 240 % of the contributions that would have been withheld under the Government and Public Employees Retirement Plan had the employee not been on leave, from the pensionable salary the employee was receiving when he or she was granted the leave and an amount equal to 200 % of such contributions, in the case of a period of leave after 30 June 1982 ; and
(3) held pensionable employment under the Government and Public Employees Retirement Plan from the end of the employee’s leave without pay, unless the employee has become disabled.
Notwithstanding the foregoing, any amount remaining unpaid at the end of the leave bears interest compounded annually and computed from the mid-point of the year in which the leave ends at the rate determined for each period by this Act until the date of receipt of the application.
The amount required for those days to be credited is payable in cash or by instalments spread over the period and payable at the intervals determined by the Commission. If paid by instalments, the amount bears interest, compounded annually, at the rate in force on the date of receipt of the application, computed from the date on which the redemption proposal made by the Commission expires.