Mich. Comp. Laws § 450.1643

Sec. 643. (1) Restated articles of incorporation adopted under section 641(2)(a) shall be signed by the majority of incorporators and filed in accordance with section 131. (2) Restated articles of incorporation adopted under section 641(2)(b), (c), or (d) shall be executed on behalf of the corporation and filed in accordance with section 131. (3) When the filing of restated articles of incorporation becomes effective, the corporation's original articles of incorporation, as amended, are superseded; and the restated articles, including any further amendments made by the restatement of the articles, are the articles of incorporation of the corporation.