((a)) ** Rule making procedure; election and application of procedure under ; publication of election and proposal** Proceedings to issue, amend, or repeal a regulation prescribing a standard under shall be conducted in accordance with the procedures prescribed by section 553 (other than paragraph (3)(B) of the last sentence of subsection (b) of such section) of title 5 unless the Commission elects the procedures prescribed by subsection (e) of , in which event such subsection and subsections (f) and (g) of such section 371 shall apply to such proceedings. If the Commission makes such election, it shall publish that fact with the proposal required to be published under paragraph (1) of such subsection (e).section 1472 of this titlesection 371 of title 21

((b)) ** Judicial review; petition; record; additional evidence; jurisdiction of court of appeals; scope of review; relief pending review; finality of judgment; review by Supreme Court**

((1)) In the case of any standard prescribed by a regulation issued in accordance with , any person who will be adversely affected by such a standard may, at any time prior to the 60th day after the regulation prescribing such standard is issued by the Commission, file a petition with the United States Court of Appeals for the circuit in which such person resides or has his principal place of business for a judicial review of such standard. A copy of the petition shall be forthwith transmitted by the clerk of the court to the Commission or other officer designated by it for that purpose. The Commission shall file in the court the record of the proceedings on which the Commission based its standard, as provided in .

((2)) If the petitioner applies to the court for leave to adduce additional evidence, and shows to the satisfaction of the court that such additional evidence is material and that there was no opportunity to adduce such evidence in the proceeding before the Commission, the court may order such additional evidence (and evidence in rebuttal thereof) to be taken before the Commission in a hearing or in such other manner, and upon such terms and conditions, as to the court may seem proper. The Commission may modify its findings as to the facts, or make new findings, by reason of the additional evidence so taken, and it shall file such modified or new findings, and its recommendation, if any, for the modification or setting aside of its original standard, with the return of such additional evidence.

((3)) Upon the filing of the petition under paragraph (1) of this subsection the court shall have jurisdiction to review the standard of the Commission in accordance with subparagraphs (A), (B), (C), and (D) of paragraph (2) of . If the court ordered additional evidence to be taken under paragraph (2) of this subsection, the court shall also review the Commission’s standard to determine if, on the basis of the entire record before the court pursuant to paragraphs (1) and (2) of this subsection, it is supported by substantial evidence. If the court finds the standard is not so supported, the court may set it aside.

((4)) With respect to any standard reviewed under this subsection, the court may grant appropriate relief pending conclusion of the review proceedings, as provided in section 705 of such title 5.

((5)) The judgment of the court affirming or setting aside, in whole or in part, any such standard of the Commission shall be final, subject to review by the Supreme Court of the United States upon certiorari or certification, as provided in .