N.D. Cent. Code § 40-09-11
The board of city commissioners shall meet in regular meeting at least once a month and at such additional times as the board, by ordinance, may establish. All regular meetings shall be held at a time and place to be designated by the board. No action of the board shall be effective unless upon a vote of a majority of a quorum of the members of such board. No final action shall be taken in any matter concerning the special department of any absent commissioner unless such business has been made a special order of the day or such action is taken at a regular meeting of the board. Special meetings may be called at any time by the president or any two members of the board to consider matters mentioned in the call of such meeting. Written notice of any special meeting shall be given to each member of the board.
N.D.C.C. § 40-09-11