Mich. Comp. Laws § 423.281
A majority decision of the arbitration panel, if supported by competent, material, and substantial evidence on the whole record, shall be final and binding upon the parties, and may be enforced, at the instance of either party or of the arbitration panel, in the circuit court for the county in which the dispute arose or in which a majority of the affected employees reside. The commencement of a new state fiscal year after the initiation of arbitration procedures under this act, but before the issuance of the arbitration order, or its enforcement, shall not be considered to render a dispute moot or to otherwise impair the jurisdiction or authority of the arbitration panel or its order. The arbitration panel may award increases in rates of compensation or other benefits retroactively to the commencement of a period in dispute, other statute provisions to the contrary notwithstanding. At any time the parties, by stipulation, may amend or modify an order of arbitration.
MCL 423.281