; (2) in paragraph (2) (as so designated), by inserting the exportation of natural gas to a covered nation, before or the exportation ; and (3) by adding at the end the following: (3) Exclusions (A) Nations subject to sanctions The Commission shall not grant expedited approval under paragraph (2) of an application for exportation of natural gas to any nation that is subject to sanctions or trade restrictions imposed by the United States. (B) Nations designated by Congress The Commission shall not grant expedited approval under paragraph (2) of an application for exportation of natural gas to any nation designated by an Act of Congress as excluded from such expedited approval for reasons of national security. . (c) Effect The amendments made by subsection (b) shall not affect any Federal authorization to export natural gas from the United States to a foreign nation or to import natural gas into the United States from a foreign nation that is in effect on the date of enactment of this Act.