(a)
The contract executed under Section 24810, and making persons other than teachers and other persons employed in a status requisite for membership in the State Teachers’ Retirement System, who are active or retired members of a district retirement salary plan established under Sections 24800 to 24812, inclusive, members and beneficiaries of the Public Employees’ Retirement System, shall be amended to include as members or beneficiaries, teachers and other persons who were employed in a status requisite for membership in the State Teachers’ Retirement System, who ceased to be members of the plan if it was discontinued, or if the plan was not discontinued, who resign instead of retiring and are refunded their accumulated contributions under that plan, or who retire or have retired under the district plan and relinquish or have relinquished their right to allowances from the plan with credit for service rendered in a status in which they would have been eligible for membership in the Public Employees’ Retirement System, if the district or districts by which they were employed had been participating in that system under Part 3 (commencing with Section 20000) of Division 5 of Title 2 of the Government Code, but only if the service qualified for credit under the plan and is not credited under any other retirement system.
(b)
The service of a person who ceased to be a member, or resigns or has resigned instead of retiring, or who relinquishes or has relinquished, shall be administered under the contract in exactly the same manner as that applied to service of persons who were retired under the local retirement system at the effective date of that contract, and were made beneficiaries, or who were not retired and were made members of the system on that date. The retirement allowances being received by the relinquishing persons, on account of service that would have been credited under the Public Employees’ Retirement System as stated, shall be adjusted in the same manner that allowances were adjusted under paragraph (6) of subdivision (b) of Section 24810. Any member who is credited with service in accordance with this section, shall pay to the Public Employees’ Retirement System, at times and in the manner fixed by the board of administration of that system, an amount equal to contributions with interest, that the member received as a refund from the plan, and that were based on service credited, plus interest from the date of refund to the date of the payment, at the interest rate in effect under the system at the date of payment. Contributions required of the district or districts shall be determined by proper valuation, and the contributions set forth in the contract shall be adjusted accordingly.
(c)
A retirement allowance based on the credited service shall be payable and retirement shall become effective, under the Public Employees’ Retirement System beginning on the first day of the month next following the effective date of this section, in the case of a person who then is retired under the State Teachers’ Retirement System, or otherwise on the later effective date of the member’s retirement under the teachers’ system. The allowance shall be based on the person’s age when the allowance begins, and on the same average salary as that upon which his or her allowance under the State Teachers’ Retirement System, is based.