Mich. Comp. Laws § 551.104
It shall be the duty of the clergyman or magistrate, officiating at a marriage, to fill in the spaces of the certificate left blank for the entry of the time and place of the marriage, the names and residences of 2 witnesses, and his own signature in certification that the marriage has been performed by him and any and all information required to be filled in in the spaces left blank in the certificate shall be typewritten or legibly printed. He shall separate the duplicate license and certificate, and deliver the half part designated duplicate to 1 of the parties, so joined in marriage, and within 10 days return the original to the county clerk issuing the same. It shall be the duty of such clergyman or magistrate to keep an accurate record of all marriages solemnized in a book used expressly for that purpose.
MCL 551.104