28 USC 293 - Judges of the Court of International Trade

(a) [1] The Chief Justice of the United States may designate and assign temporarily any judge of the Court of International Trade to perform judicial duties in any circuit, either in a court of appeals or district court, upon presentation of a certificate of necessity by the chief judge or circuit justice of the circuit in which the need arises.
[1] So in original. No subsec. (b) has been enacted.