Mich. Comp. Laws § 120.33: Fund created; special funds; disbursement.

Sec. 33.

The county treasurer of the county in which the port district is located, or in the event that the district covers 2 or more whole counties, then the county treasurer designated by the port commission shall create a fund to be known as the "Port of ............... Fund," into which shall be paid all money received by him from the collection of taxes in behalf of such port district, and no money shall be disbursed therefrom except upon warrants of the county auditor, or upon order of or vouchers approved by the port commission. The county treasurer shall also maintain such other special funds as may be prescribed by the port commission, into which shall be placed such moneys as the port commission may by its resolution direct, and from which disbursements shall be made upon proper warrants of the county auditor or county clerk issued against the same by authority of the port commission.