Mich. Comp. Laws § 290.663

Sec. 13. (a) Upon written petition duly signed by 25%, or 200, of the producers affected by the program, whichever is less, the director shall, within 30 days, give 10 days' notice and hold a hearing on termination of a program. (b) Within 30 days after the close of the hearings, the director, after consulting with the committee, shall issue a recommendation, give public notice, and notify all producers of record, all parties appearing at the hearing and any other interested parties. (c) The director, upon recommending termination of a marketing program, shall, within 30 days, conduct a referendum to determine whether the affected producers assent to the proposed action. The affected producers shall be deemed to have assented to the termination of the program if 51% or more by number of those voting, representing 51% or more of the volume of those voting, vote in favor of its termination.