(a) There shall be a social work staff employed a sufficient number of hours in the facility to meet the social work needs of the patient.

(b) The social work service unit shall be organized, directed and supervised by the social worker, who has responsibility for supervision of other social work staff, including social work assistants and social work aides.

(c) Social work service staff may include the social work assistant and/or the social work aide. Assigned functions and tasks shall be supervised by the social worker. Under conditions specified in the written patient care policies, procedures and job descriptions, the social work aide may be under the supervision of the social work assistant.

(d) Adequate clerical support services shall be provided for social work staff, including those employed on a contractual basis.