Kan. Stat. § 13-1499
Any elective or appointive officer or employee having served an aggregate of twenty (20) years or more as an elective or appointive officer or employee, other than members of the police department, fire department, water and light department, and all day laborers not paid on a monthly basis and any officer or employee who elects not to come under the provisions of the act of such city, and who has reached the age of retirement as designated by the social security act, as amended, may make application to the governing body to be retired, and upon such application being made to the governing body, such governing body shall immediately accept and approve such application for retirement and immediately pass an ordinance to pay semimonthly to such elective or appointive officer or employee, so retired, a sum equal to fifty percent (50%) of the average salary or wages which such elective or appointive officer or employee was receiving during the last two (2) years of service to such city, except as provided in K.S.A. 13-1499a.
K.S.A. 13-1499