As used in this part, unless the context clearly indicates otherwise, the following definitions apply:
(1) "Department" means the department of public health and human services provided for in 2-15-2201.
(2) "Older Americans Act" means the Older Americans Act of 1965, as amended, 42 U.S.C. 3001, et seq.
(3) "Planning and service area" means a geographic area of the state that is designated for purposes of planning, development, delivery, and overall administration of services under the Older Americans Act.
(4) "Services to older adults" means those services the department administers pursuant to the Older Americans Act.
(5) "State plan" means a plan developed by the department to coordinate and administer delivery of services under the Older Americans Act.