Mich. Comp. Laws § 500.3847

Sec. 3847. An insurer that provides Medicare supplement insurance coverage in this state shall file with the director for review a copy of any written, radio, or television advertisement for Medicare supplement insurance intended for use in this state at least 30 days before the date the insurer desires to use the advertising. The filing must include a sample or photocopy of all applicable Medicare supplement policies and related forms and the approval status of the policies and forms.