The council shall adopt a merit system for the employees of the city, the provisions of which shall apply to all employees of the city except elected officials, officers of the city appointed by the council, department heads, persons engaged under contract to supply expert, professional or technical services, temporary employees and volunteer personnel who receive no regular compensation from the city. [Ord. 18-09 § 1; Res. 18-24; Code 2004 § 3-261.]