N.D. Cent. Code § 40-13-11: Additional duties, powers, and privileges of officers may be defined by ordinance

The duties, powers, and privileges of all officers of every character in any way connected with a municipal government, not defined in this title, shall be defined by the governing body. The definition by this title of the duties of municipal officers shall not preclude the governing body from defining by ordinance further and additional duties to be performed by any such officer.