Michigan Compiled Laws, Chapter 330. Mental Health Code § 330.1509

Sec. 509. (1) An individual with a developmental disability under 18 years of age shall be referred by a community mental health services program before being considered for administrative admission to a facility. An application for the individual's admission shall be executed by a parent, guardian, or, in the absence of a parent or guardian, a person in loco parentis if it is determined that the minor is suitable for admission.

(2) An individual with a developmental disability who is 18 years of age or older and is referred by a community mental health services program may be admitted to a facility on an administrative admission basis if an application for the individual's admission is executed by the individual if competent to do so, or by a guardian if the individual is not competent to do so, and if it is determined that the individual is suitable for admission.

(3) An application for administrative admission shall contain in large type and simple language the substance of sections 510, 511, and 512.  1 At the time of admission, the rights set forth in the application shall be explained to the resident and to the person who executed the application for admission. In addition, a copy of the application shall be given to the resident, the person who executed the application, and to 1 other person designated by the resident.