(1) In addition to any service credited under the provisions of Kan. Stat. Ann. §§ 74-4913 or 74-4936, and amendments thereto, in the event that a member of the Kansas public employees retirement system does not qualify for credit for service as an elected official with a participating employer, such member may purchase, subject to the provisions of Kan. Stat. Ann. § 74-49,123, and amendments thereto, participating credit for periods of such service. Except as otherwise provided in this section, such member may purchase such service credit by submitting proof of such service acceptable to the board of trustees and, if first commenced prior to January 1, 1996, electing in writing to have employee contributions deducted as provided in Kan. Stat. Ann. § 74-4919, and amendments thereto, from such member’s compensation at a percentage rate equal to two times or three times the employee’s rate of contribution as provided in Kan. Stat. Ann. § 74-4919, and amendments thereto, for such periods of service. Such deductions shall commence at the beginning of the quarter following such election and shall remain in effect until all of the full quarters of such service have been purchased. Subject to the provisions of Kan. Stat. Ann. § 74-49,123, and amendments thereto, any person may make any such purchase as described in this section, if first commenced in calendar year 1996 or thereafter, at an additional rate of contribution, in addition to the employee’s rate of contribution as provided in Kan. Stat. Ann. § 74-4919, and amendments thereto, based upon the member’s attained age at the time of purchase and using actuarial assumptions and tables in use by the retirement system at such time of purchase, for such periods of service, in lieu of a lump-sum amount as provided in this section. Such additional rate of contribution shall commence at the beginning of the quarter following such election and shall remain in effect until all quarters of such service have been purchased.

(2) In the event such member has elected to purchase participating service credit as provided in Kan. Stat. Ann. §§ 74-4919a to 74-4919e, inclusive, and amendments thereto, the increased employee contributions and purchase of participating service credit provided herein shall not commence until after the purchase of participating service credit under Kan. Stat. Ann. §§ 74-4919a to 74-4919e, inclusive, and amendments thereto, has been completed. If a member terminates employment before completing the purchase of all participating service credit as such member may be entitled to purchase, such member shall only receive such credit for those full quarters as the percentage rate equal to two times or three times the employee’s rate of contribution as provided in Kan. Stat. Ann. § 74-4919, and amendments thereto or those full quarters as the additional rate of contribution, in addition to the employee’s rate of contribution as provided in Kan. Stat. Ann. § 74-4919, and amendments thereto, for such periods of service has been deducted from such member’s compensation.

(3) Subject to the provisions of Kan. Stat. Ann. § 74-49,123, and amendments thereto, any member of the Kansas public employees retirement system who does not qualify for credit for service as an elected official with a participating employer and who has not retired may purchase participating service credit for such service as an elected official with a participating employer by making a single lump-sum payment in lieu of employee contributions as provided in this section. The lump-sum payment shall be in an amount determined by the actuary using (A) the member’s then current annual rate of compensation or the member’s final average salary at the time the member elects to purchase such service credit, whichever is higher, (B) the actuarial assumptions and tables currently in use by the system and (C) the member’s attained age.

(4) Commencing on January 1, 1988, and ending on June 30, 1988, any member of the Kansas public employees retirement system who does not qualify for credit for service as an elected official with a participating employer and who has not retired may purchase participating service credit for such service as an elected official with a participating employer by making a single lump-sum amount equivalent to 4% of the compensation paid to such member for service as an elected official during such period.