shall act on the merits of the application by the date that is 30 days after the date on which the Commission establishes a quorum. (C) Failure to act If the Commission fails to act on the merits of an application filed under paragraph (1) by the applicable deadline under subparagraph (A) or (B), the application shall be deemed to be denied. (3) Certain orders (A) Prohibition With respect to an order issued under section 3 or 7, during the covered period— (i) the Commission may not authorize any construction-related activity that is related to the order