The department shall contract with local county governments for operation of this program. With department approval, county governments may designate and subcontract with a regional food bank or emergency food provider to operate this program. If a county chooses not to participate in the program and chooses not to designate an emergency food provider to participate on its behalf by the 90th day of the fiscal year, the department shall immediately attempt to contract with an emergency food provider to administer the program within such county.