"Court of competent jurisdiction" means a circuit court or family court within this state or a court or administrative agency of another state having jurisdiction and due legal authority to deal with the subject matter of the establishment and enforcement of support obligations. Whenever in this chapter reference is made to an order of a court of competent jurisdiction, or similar wording, such language shall be interpreted so as to include orders of an administrative agency entered in a state where enforceable orders may by law be properly made and entered by such administrative agency.