Section 12-5003 - KP and F system membership election for certain active members of local police or fire pension plans; final average salary(a) Each active member of a local police or fire pension plan, which is maintained and funded by a city which affiliates after the effective date of this act with the Kansas police and firemen's retirement system with regard to all active members and retired members of such plan as provided in K.S.A. 74-4954, who elected not to become a member of said system prior to the effective date of this act, may become a member of said system by filing a written statement of election to become a member of said system with the board of trustees on or before the entry date of such city under K.S.A. 74-4954. Failure to file such written election shall be presumed to be an election not to become a member of said system. Such election, whether to become a member or not to become a member as provided in this section, shall be irrevocable.(b) Except as otherwise provided in this act, any active member of a local police or fire pension plan who elects to become a member of the Kansas police and firemen's retirement system as provided in this section, shall be subject to the provisions of K.S.A. 74-4951 to 74-4977, inclusive, and acts amendatory thereof or supplemental thereto.(c) For any such active member who elects to become a member of the Kansas police and firemen's retirement system as provided in this section, the term "final average salary" means the average highest annual compensation paid to such member for service as a policeman or fireman for any three of the five years immediately preceding retirement or termination of service, notwithstanding the definition of such term in K.S.A. 74-4952.L. 1976, ch. 348, § 3; July 1.