Each application for involuntary admission to a facility or Veterans’ Administration hospital under this part shall: Be in writing; Be dated; Be on the form required by: The Administration, in the case of a facility; or The Veterans’ Administration hospital, in the case of a Veterans’ Administration hospital; State the relationship of the applicant to the individual for whom admission is sought; Be signed by the applicant; Be accompanied by the certificates of: 1 physician and 1 psychologist; 2 physicians; 1 physician and 1 psychiatric nurse practitioner; 1 physician and 1 licensed certified social worker–clinical; or 1 physician and 1 licensed clinical professional counselor; and Contain any other information that the Administration requires.