Each civil officer in this state before entering upon the duties of that individual‘s office shall take and subscribe the oath prescribed in section 4 of article XI of the Constitution of North Dakota. The oath must be endorsed upon the back of, or attached to, the commission, appointment, or certificate of election. The term civil officer includes every elected official and any individual appointed by such elected official; any individual appointed by the governor and required by section 16.1-09-02 to file a statement of interests with the secretary of state; appointed member of any state authority, board, bureau, commission, and council; and the appointed head of any state agency and agency division, whether the individual serves with or without compensation. Except for an individual appointed to fill a vacancy existing in the legislative assembly, the term does not include any individual receiving a legislative     appointment. For purposes of this chapter and chapter 44-05, the term civil officer has the same meaning as public officer.