JUDICIAL REVIEW OF REGULATIONS.

SEC. 409. [2 U.S.C. 1409] JUDICIAL REVIEW OF REGULATIONS. In any proceeding brought under section 407 or 408 in which the application of a regulation issued under this Act is at issue, the court may review the validity of the regulation in accordance with the provisions of subparagraphs (A) through (D) of section 706(2) of title 5, United States Code, except that with respect to regulations approved by a joint resolution under section 304(c), only the provisions of section 706(2)(B) of title 5, United States Code, shall apply. If the court determines that the regulation is invalid, the court shall apply, to the extent necessary and appropriate, the most relevant substantive executive agency regulation promulgated to implement the statutory provisions with respect to which the invalid regulation was issued. Except as provided in this section, the validity of regulations issued under this Act is not subject to judicial review.