Mich. Comp. Laws § 550.924
The commissioner is authorized to destroy or otherwise dispose of all records, books, papers, and other data on file with the department which in his or her opinion and on the advice of the attorney general, are of no further material value to the state of Michigan; but the destruction or other disposal thereof shall not be ordered or made by him or her of any records, books, papers, or other data required by law to be filed or kept on file with the insurance bureau until the expiration of a period of 10 years, nor of any such records, books, papers, or other data filed during his or her administration or administrations. Such authorization shall be effected through official rules of the commissioner. However, this authorization shall not extend to articles of incorporation, and amendments thereto, copies of bylaws and amendments thereto, copies of certificates or other written evidence of authorization to transact business or of approval of articles of incorporation and bylaws.
MCL 550.924