(a) Any member described in subparagraph (N) or (P) of paragraph (28) of Code Section 47-3-1 who is allowed to continue membership in the retirement system after June 30, 1984, under the provisions of the last undesignated paragraph of Code Section 47-3-1 shall be eligible to obtain creditable service under this chapter for service rendered prior to July 1, 1984, in a position described in said subparagraph (N) or (P) of paragraph (28) of Code Section 47-3-1, provided creditable service has not been obtained by the member for the same period of time under any other provision of this chapter and, provided, further, that payment is made for such creditable service as required in subsection (b) of this Code section.

(b) In order to obtain creditable service authorized in subsection (a) of this Code section:

(1) The member applying for such creditable service shall pay to the board of trustees the employee contributions that would have been paid into the retirement system during the period of time for which creditable service is obtained as if the person had been a member of the retirement system during such period of time, plus regular interest that would have accrued on such contributions; and

(2) The Georgia Association of Educators, the Georgia High School Association, the Georgia School Boards Association, or the Georgia Vocational Association which employed the member during the period of time for which application is made for creditable service shall pay to the board of trustees an amount which when added to the amount paid to the board under paragraph (1) of this subsection shall be sufficient to pay the full actuarial cost of granting the creditable service claimed by the member applying therefor.

(c) The board of trustees may require such documentation as may be necessary to verify any service and the compensation therefor that may be claimed as creditable service under this Code section. Upon application for creditable service under this Code section and the provision of such documentation as the board of trustees may require, the board shall certify to the applying member and to the appropriate association the amount of the payments required under subsection (b) of this Code section.