Notwithstanding the provisions of Kan. Stat. Ann. §§ 74-4902 and 74-4911 to the contrary, an employee of a participating employer who was born on March 15, 1914 and who was employed by said employer on September 1, 1975, and who was employed by another participating employer from September, 1946 through May, 1956, and who is employed by a participating employer on the effective date of this act, shall be an eligible member of the Kansas public employees retirement system as of September 1, 1975, upon the payment of appropriate employer and employee contributions, and shall be entitled to receive participating service credit for employment with the participating employer from date of membership. Upon attainment of membership by the provisions of this act, such employee and his or her participating employer shall thereafter be governed by the provisions of the Kansas public employees retirement act.