(a) The governing authority of an agency shall: 1. Appoint a full-time director of nursing who shall be available at all times; and 2. Designate in writing, to act in the absence of the director of nursing, one or more alternates who are registered professional nurses. (b) A registered professional nurse shall be available for each agency branch office during its hours of operation to provide clinical supervision. (c) An agency shall ensure that the registered professional nurses and licensed practical