Proceedings to issue, amend, or repeal a regulation prescribing a standard under section 1472 of this title 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 section 371 of title 21, 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).