Mich. Comp. Laws § 722.2003

Sec. 3. (1) Each court in this state may establish a court-appointed special advocate program. The court-appointed special advocate program must be administered under this act. (2) A court-appointed special advocate program must do all of the following: (a) Screen, train, and supervise court-appointed special advocate volunteers to advocate for the best interests of a child when appointed by a court as provided in section 7. Each court may be served by a CASA program. One CASA program may serve more than 1 court. (b) Hold regular case conferences with volunteers to review case progress and conduct annual performance reviews for all volunteers. (c) Provide CASA program staff and volunteers with written program policies, practices, and procedures. (d) Provide the training required under section 5.