Mich. Comp. Laws § 141.873a

Sec. 3a. (1) Within 30 days after a marketing program notice is filed, the director shall approve or disapprove the marketing program. The director shall not disapprove a marketing program unless the program violates this act. (2) Within 40 days after approval of a marketing program, the director shall require a written referendum to be held by mail or in person, as determined by the director, among all owners of transient facilities in each municipality in the proposed assessment district. For the purpose of the referendum, each owner shall have 1 vote for each room in an owner's transient facility. (3) The marketing program and assessment set forth in the notice shall become effective on the first day of the month that is more than 30 days after certification by the director that the program was approved by a majority of the votes actually cast in each municipality in the assessment district. If a majority of the votes actually cast in any municipality counted separately is not in favor of the program and assessment, the program and assessment shall not go into effect in the assessment district. However, for purposes of tabulating the votes in the referendum for a marketing program proposed on or after April 12, 1984, each municipality in the proposed assessment district requiring a majority of votes cast in favor of the proposed assessment district shall be defined in the marketing program notice required under section 3. A bureau may file and serve another marketing program notice not less than 60 days after certification of the results of a referendum.