Mich. Comp. Laws § 780.179

Sec. 29. (1) If this state is acting as a rendering state, the friend of the court upon the request of the court or the state department of social services shall proceed to register a valid existing support order of this state in the state where the obligor or the property of the obligor can be located. (2) Notwithstanding that this state is not the rendering state, the friend of the court upon the request of a resident obligee of a valid existing foreign support order shall proceed to register the foreign support order in the state where the obligor or the property of the obligor can be located. (3) If this state is acting as a registering state, the friend of the court upon the request of the court or the state department of social services shall proceed to confirm a registered order.