In any proceeding under section 453(1), if the President, or the designee of the President, has not issued a regulation on a matter for which this chapter requires a regulation to be issued, the administrative agency shall apply, to the extent necessary and appropriate, the most relevant substantive executive agency regulation promulgated to implement the statutory provision at issue in the proceeding.
(Added Pub. L. 104–331, §2(a), Oct. 26, 1996, 110 Stat. 4068.)