(a) Board means a community services board which plans for services to persons diagnosed with mental illness, persons with mental retardation, persons with developmental disabilities, persons with alcoholism and persons who abuse substances.

(b) Local governmental unit means the unit of a local government given authority by local government to contract for and/or provide local or unified mental health, mental retardation and development disabilities, alcohol abuse and substance abuse services.

(c) Director of community services means the chief executive officer of a local governmental unit, by whatever title known.

(d) Inter-Office Coordinating Council means a council constituted by the Commissioner of the Office of Mental Health, Commissioner of the Office of Mental Retardation and Developmental Disabilities, the Commissioner of the Office of Alcoholism and Substance Abuse Services which shall ensure that the State policy for the prevention, care, treatment and rehabilitation of mental illness, mental retardation and developmental disability, alcoholism and substance abuse is comprehensively planned, developed, implemented and regulated.