(a) As used in this Code section, "temporary full-time service" means employment by the legislative branch of the state government prior to January 1, 1996, on a full-time basis for less than nine months in any calendar year that did not qualify the employee to be a member of the retirement system.

(b) Any member who rendered temporary full-time service prior to becoming a permanent full-time employee eligible for membership in the retirement system may obtain no more than ten years of creditable service for such service on a month-for-month basis, subject to the following requirements:

(1) One month of creditable service shall be granted for each 20 days of temporary full-time service, not to exceed 12 months of creditable service for all temporary full-time service rendered during any single calendar year, provided that no creditable service shall be granted for less than 60 days of part-time service during a calendar year; and

(2) The member claiming such creditable service shall pay to the board of trustees the employer and employee contribution that would have been paid to the retirement system if the member had been a member during the period for which creditable service is claimed based on compensation actually received for the temporary full-time service which is claimed as creditable service together with regular interest thereon.

(c) The board of trustees shall require such proof of part-time service and compensation received therefor as may be necessary to carry out the provisions of this Code section.

(d) In order to obtain creditable service under this Code section, a member must make application to the board of trustees not later than January 1, 1999.

(e) Nothing in this Code section shall be construed as to allow any former member of the General Assembly to obtain credit for prior legislative service.