Sec. 304. [42 U.S.C. 504] (a) Whenever the Secretary of Labor—
(1) finds that a State law does not include any provision specified in section 303(a), or
(2) makes a finding with respect to a State under subsection (b), (c), (d), (e), (h), (i), or (j) of section 303,
such State may, within 60 days after the Governor of the State has been notified of such action, file with the United States court of appeals for the circuit in which such State is located or with the United States Court of Appeals for the District of Columbia, a petition for review of such action. A copy of the petition shall be forthwith transmitted by the clerk of the court to the Secretary of Labor. The Secretary of Labor thereupon shall file in the court the record of the proceedings on which he based his action as provided in section 2112 of title 28, United States Code.
(b) The findings of fact by the Secretary of Labor, if supported by substantial evidence, shall be conclusive; but the court, for good cause shown, may remand the case to the Secretary of Labor to take further evidence and the Secretary of Labor may thereupon make new or modified findings of fact and may modify his previous action, and shall certify to the court the record of the further proceedings. Such new or modified findings of fact shall likewise be conclusive if supported by substantial evidence.
(c) The court shall have jurisdiction to affirm the action of the Secretary of Labor or to set it aside, in whole or in part. The judgment of the court shall be subject to review by the Supreme Court of the United States upon certiorari or certification as provided in section 1254 of title 28 of the United States Code.
(d)(1) The Secretary of Labor shall not withhold any certification for payment to any State under section 302 until the expiration of 60 days after the Governor of the State has been notified of the action referred to in paragraph (1) or (2) of subsection (a) or until the State has filed a petition for review of such action, whichever is earlier.
(2) The commencement of judicial proceedings under this section shall stay the Secretary’s action for a period of 30 days, and the court may thereafter grant interim relief if warranted, including a further stay of the Secretary’s action and including such other relief as may be necessary to preserve status or rights.
 See Vol. II, 28 U.S.C. 2112.
 See Vol. II, 28 U.S.C. 1254.