The following elected and appointed officers, before entering upon the duties of their respective offices shall take and subscribe the constitutional oath of office, which shall be filed with the city recorder:
A. Mayor;
B. City council members;
C. City attorney;
D. Director of each city department;
E. City treasurer;
F. City engineer;
G. City recorder;
H. Peace officer;
I. Firefighters;
J. Such other officers or employees designated by the mayor by executive order who hold positions of trust or unique responsibility. (Amended during 1/88 supplement: prior code § 24-6-1)