In the event either the Governor or the Legislature should obtain federal approval to transfer programs receiving federal support for persons with an intellectual disability or a mental health disorder from one state department to another state department under the provisions of Public Law 90-577 (Intergovernmental Cooperation Act of 1968), the Controller shall, upon approval of the Director of Finance, transfer to a department designated by the Governor the parts of the appropriation of the other departments that are related to programs for persons with an intellectual disability or a mental health disorder, provided further, that the transfer shall enable the state to make maximum utilization of available state and federal funds.