Mich. Comp. Laws § 500.2672

Sec. 2672. (1) Any insurer or rating organization aggrieved by any order or decision of the commissioner made without a hearing, may, within 30 days after notice of the order to the insurer or organization, make written request to the commissioner for a hearing thereon. The commissioner shall hear such party or parties within 20 days after receipt of such request and shall give not less than 10 days' written notice of the time and place of the hearing. Within 15 days after such hearing the commissioner shall affirm, reverse or modify his previous action, specifying his reasons therefor. Pending such hearing and decision thereon the commissioner may suspend or postpone the effective date of his previous action. (2) Any order or decision of the commissioner shall be subject to review in accordance with the provisions of section 244.