((a)) Any person aggrieved by an order of the Secretary issued under section 208 of this title may obtain a review of such order in the United States Court of Appeals for any circuit wherein such person resides or has his principal place of business, or in the United States Court of Appeals for the District of Columbia, by filing in such court, within 60 days after the entry of such order a written petition praying that the order of the Secretary be modified or set aside in whole or in part. A copy of such petition shall forthwith be transmitted by the clerk of the court to the Secretary, and thereupon the Secretary shall file in the court the record of the industry committee upon which the order complained of was entered, as provided in . Upon the filing of such petition such court shall have exclusive jurisdiction to affirm, modify (including provision for the payment of an appropriate minimum wage rate), or set aside such order in whole or in part, so far as it is applicable to the petitioner. The review by the court shall be limited to questions of law, and findings of fact by such industry committee when supported by substantial evidence shall be conclusive. No objection to the order of the Secretary shall be considered by the court unless such objection shall have been urged before such industry committee or unless there were reasonable grounds for failure so to do. If application is made to the court for leave to adduce additional evidence, and it is shown to the satisfaction of the court that such additional evidence may materially affect the result of the proceeding and that there were reasonable grounds for failure to adduce such evidence in the proceedings before such industry committee, the court may order such additional evidence to be taken before an industry committee and to be adduced upon the hearing in such manner and upon such terms and conditions as to the court may seem proper. Such industry committee may modify the initial findings by reason of the additional evidence so taken, and shall file with the court such modified or new findings which if supported by substantial evidence shall be conclusive, and shall also file its recommendation, if any, for the modification or setting aside of the original order. The judgment and decree of the court shall be final, subject to review by the Supreme Court of the United States upon certiorari or certification as provided in .
((b)) The commencement of proceedings under subsection (a) shall not, unless specifically ordered by the court, operate as a stay of the Administrator’s order. The court shall not grant any stay of the order unless the person complaining of such order shall file in court an undertaking with a surety or sureties satisfactory to the court for the payment to the employees affected by the order, in the event such order is affirmed, of the amount by which the compensation such employees are entitled to receive under the order exceeds the compensation they actually receive while such stay is in effect.