For the purposes of this chapter:
(1) "Director" means the head of the Department of Behavioral Health and Developmental Disabilities.
(2) "Department" means the Department of Behavioral Health and Developmental Disabilities.
(3) "Office" or "component office" means any one or more of the component offices or divisions that comprise the Department of Behavioral Health and Developmental Disabilities.
(4) "Office director" means a person, appointed by the department director, to serve as the head of a component office. An office director shall answer directly to the oversight of the department director.