(b) RULES OF THE BOARD.—
(1) DEFINITION.—In this section, the term ‘‘proposed rule’’ means any proposed rule of the Board, and any modification of any such rule.
(2) PRIOR APPROVAL REQUIRED.—No rule of the Board shall become effective without prior approval of the Commission in accordance with this section, other than as provided in section 103(a)(3)(B) with respect to initial or transitional standards.