Mich. Comp. Laws § 712A.20: Temporary or permanent custody.

Sec. 20.

The court in all cases involving custody shall state in the order for disposition or any supplemental order of disposition whether the child is placed in the temporary or permanent custody of the court. If the child is placed in the temporary custody of the court, no supplemental order of disposition providing permanent custody, or containing any other order of disposition shall be made except at a hearing pursuant to issuance of summons or notice as provided in sections 12 and 13 of this chapter or at a rehearing provided by section 19 of this chapter. If the child is placed in the permanent custody of the court, all parental rights are terminated, though such rights may be reinstated by a supplemental order of disposition after rehearing pursuant to section 21.