On the effective date of this act, the following shall be eligible employers as defined in K.S.A. 74-4902(13), and amendments thereto, and as further defined herein:
Such eligible employers shall become participating employers as defined in K.S.A. 74-4902(24), and amendments thereto. The entry date into the Kansas public employees retirement system of such eligible employers shall be January 1, 1971.
K.S.A. 74-4931