Section 9.17. Voluntary and informal admissions; suitability

(a)  In  order for a person to be suitable for admission to a hospital
  as a voluntary or informal patient, or for conversion to such status  he
  must be notified of and have the ability to understand the following:
    1. that the hospital to which he is requesting admission is a hospital
  for the mentally ill.
    2. that he is making an application for admission.
    3.  the nature of the voluntary or informal status, as the case may be
  and the  provisions  governing  release  or  conversion  to  involuntary
  status.
    (b)  The  department  shall  have  the  power  to examine the patients
  admitted pursuant to this section and determine if they  belong  to  the
  voluntary  or  informal class. If it be determined that any such patient
  does not belong to the voluntary or informal class, the department shall
  determine whether the patient shall be discharged or whether  procedures
  shall  be  commenced  for  the  admission  of such patient to a hospital
  pursuant to  other  sections  of  this  article.  The  decision  of  the
  department shall be forthwith complied with by the director or person in
  charge  of any such hospital. Any failure to conform to the requirements
  of this section shall be considered a sufficient cause for revocation of
  an operating certificate theretofore issued to a hospital.