Mich. Comp. Laws § 445.1662

Sec. 12. (1) The commissioner shall give notice to a licensee or registrant of intention to enter an order suspending or revoking that person's license or registration, or notice to an applicant of a refusal to issue a license or registration, in writing and served personally or sent by certified mail to the licensee, registrant, or applicant. (2) Within 20 days after the notice of the intention to enter an order suspending or revoking a license or registration, or a refusal to issue a license or registration under subsection (1), the licensee, registrant, or applicant may request a hearing to contest the order or refusal. If a hearing regarding suspension or revocation is not requested, the commissioner shall enter a final order regarding the suspension or revocation. A hearing shall be conducted under the provisions of the administrative procedures act of 1969, 1969 PA 306, MCL 24.201 to 24.328.