Mich. Comp. Laws § 121.8
The board of commissioners shall keep a written record of every session of the board, which record shall be public. It shall also provide for a system of accounts to conform to any uniform system required by law, and for the auditing at least once yearly of the accounts of the treasurer by a competent certified public accountant, and the balance sheet showing the financial condition of the authority as of the date of the audit shall be published in 1 or more newspapers which have a general circulation in the governmental units comprising the authority within 30 days after such audit is received by the board of commissioners. The board shall require of the treasurer a suitable bond by a responsible bonding company, to be paid for by the board.
MCL 121.8