Mich. Comp. Laws § 500.3941

Sec. 3941. Every insurer providing long-term care insurance coverage in this state shall file with the commissioner for review a copy of any written, radio, or television advertisement for long-term care insurance intended for use in this state at least 45 days before the date the insurer desires to use the advertising. The filing shall include a sample or photocopy of all applicable long-term care policies and related forms and the approval status of the policies and forms. In addition, all advertisements shall be retained by the insurer or other entity for at least 3 years from the date the advertisement was first used.