; (B) describes the reasons for the modifications, streamlining, expansions, or repeals described in subparagraph (A); and (C) in any case where an agency did not take action, describes the reasons why the agency did not take action to modify, streamline, expand, or repeal any significant regulatory actions. 9. Judicial review Any person may file a petition for judicial review of any agency action required under this Act within the United States Court of Appeals for the District of Columbia Circuit or for the circuit in which such person resides or in which such person's principal place of business is located. Courts of appeals of the United States shall have exclusive jurisdiction of any action to obtain judicial review (other than in an enforcement proceeding) of such an action if any district court of the United States would have had jurisdiction of such action but for this section.