Each state agency that administers federal or state funds for services to persons with developmental disabilities, or for research or staff training in the field of developmental disabilities, shall:

(1) Investigate and determine the nature and extent of services within its legal authority that are presently available to persons with developmental disabilities in this state;

(2) Develop and prepare any state plan or application which may be necessary to establish the eligibility of the state or any community to participate in any program established by the federal government relating to persons with developmental disabilities;

(3) Cooperate with other state agencies providing services to persons with developmental disabilities to determine the availability of services and facilities within the state, and to coordinate state and local services in order to maximize services to persons with developmental disabilities and their families;

(4) Review and approve any proposed plans that local governments are required to submit for the expenditure of funds by local governments for services to persons with developmental disabilities; and

(5) Provide consultant and staff training for state and local personnel working in the field of developmental disability.