All nonelective positions in the service of the city are covered under the provisions of this chapter and the rules promulgated in this chapter, except the following:
A. The chief administration officer (city manager, administrator and his assistants);
B. The city attorney;
C. All members of the boards and commissions appointed by the mayor with the approval of the majority of all of the members of the city commission;
D. Assistant city manager and heads of departments appointed by the city manager shall be at-will employees and shall be exempt except where specifically referred to in personnel policies adopted by the city commission by resolution;
E. Professional consultants;
F. Temporary employees employed for a period of less than six months shall be exempt except where specifically referred to in personnel regulations adopted by the city commission by resolution;
G. Employees who work less than twenty hours per week; and
H. Initial probationary employees shall be exempt except where specifically referred to in personnel regulations adopted by the city commission by resolution. (Ord. 1352-89 (part), 1989; Ord. 1318-87 (part), 1987: Ord. 1068-76 §5, 1977).