Mich. Comp. Laws § 500.3557

Sec. 3557. A health maintenance organization shall file notice with the director of any substantive changes in operations within 30 days after the substantive change in operations occurs. A substantive change in operations includes, but is not limited to, any of the following: (a) A change in the health maintenance organization's officers or directors. In addition to the notification, the health maintenance organization shall file a disclosure statement on a form prescribed by the director for each newly appointed or elected officer or director. (b) A change in the location of corporate offices. (c) A change in the organization's articles of incorporation or bylaws. A health maintenance organization shall include a copy of the revised articles of incorporation or bylaws with the notice. (d) A change in contractual arrangements under which the health maintenance organization is managed. (e) Any other significant change in operations.