Mich. Comp. Laws § 28.126

Sec. 6. (1) The department shall notify NADDI if any of the following apply: (a) The department corrects or updates any information regarding the conviction, if that information was previously reported to NADDI. (b) The department determines that the conviction has been set aside under 1965 PA 213, MCL 780.621 to 780.624, or otherwise expunged. (2) NADDI shall promptly correct or update information in, or remove information from, NPLEx upon receiving notification by the department under subsection (1).