Kan. Stat. § 74-4911d
Each person who is an employee of a participating employer on June 17, 1983, who was barred from membership in the Kansas public employees retirement system under the law in effect on June 17, 1983, by reason of having attained age 59 at entry of employment, and who is made eligible by this act to be a member of the Kansas public employees retirement system, may make election in accordance with this section to become a member of that system. No such person shall become a member of the Kansas public employees retirement system in accordance with this section and K.S.A. 74-4911 or 74-4935, whichever is applicable, and amendments to such sections, unless such person files a written statement of election to become a member of the system under this section. A written statement of election to become a member of the system shall be filed with the board of trustees. Each election by filing a written statement of election under this section shall be effective on the first day of the first payroll period of the reporting quarter coinciding with or following the date of such filing and shall be irrevocable.
K.S.A. 74-4911d