N.D. Cent. Code § 6-06-04
The certificate of organization or bylaws of a credit union may be amended by the board of directors or the membership of the credit union as specified in the bylaws. If the bylaws provide for amendments by the board of directors, such amendments require an affirmative vote of two-thirds of the authorized number of members of the board of directors of the credit union at any duly held meeting of the board, if the members of the board have been given prior written notice of said meeting and the notice contains a copy of the proposed amendment or amendments. If the bylaws provide for amendments by the membership of the credit union, such amendments require an affirmative vote of two-thirds of the members present and voting at a duly called regular or special meeting of the membership, providing the members have been given prior written notice of said meeting and the notice contains a copy or summary of the proposed amendment or amendments. No amendment of the bylaws or of the certificate of organization becomes effective, until approved in writing by the state credit union board. Amendments to the certificate of organization together with a filing fee of twenty dollars must be filed with the secretary of state within thirty days after the amendments have been approved by the state credit union board.
N.D.C.C. § 6-06-04