In every mental health facility to which a person is admitted pursuant to this part:
(1) each professional person and other staff member employed by the facility shall meet all certification requirements promulgated by the department;
(2) all nonprofessional staff members who have not had prior clinical experience in a mental institution shall have substantial orientation training;
(3) staff members on all levels shall have regularly scheduled inservice training;
(4) each nonprofessional staff member shall be under the direct supervision of a professional person.