Iowa Code § 504.1031
The articles of a corporation may require that an amendment to the articles or bylaws be approved in writing by a specified person or persons other than the board. Such a provision in the articles may only be amended with the approval in writing of the person or persons specified in the provision.
2004 Acts, ch 1049, §123, 192
Referred to in §504.1002, 504.1003, 504.1005, 504.1006, 504.1007, 504.1021, 504.1022, 504.1103, 504.1202, 504.1402