; and (ii) file petitions for appeal of a decision in such action. (B) Notification timeline Where it is not feasible for the attorney general of a State to provide the notification required by subparagraph (A) before initiating a civil action under paragraph (1), the attorney general shall notify the Commission immediately after initiating the civil action. (3) Actions by commission In any case in which a civil action is instituted by the Commission for violation of this Act, no attorney general of a State may, during the pendency of such action, institute a civil action against any defendant named in the complaint in the action instituted by the Commission for a violation of this Act that is alleged in such complaint. (4) Investigatory powers Nothing in this Act shall be construed to prevent the attorney general of a State or another authorized official of a State from exercising the powers conferred on the attorney general or the State official by the laws of the State to conduct investigations, to administer oaths or affirmations, or to compel the attendance of witnesses or the production of documentary or other evidence. (5) Consolidation of actions brought by two or more State attorneys general or authorized State governmental authorities Whenever a civil action under paragraph (1) is pending and another civil action or actions are commenced pursuant to such paragraph in a different Federal district court or courts that involve 1 or more common questions of fact, such action or actions shall be transferred for the purposes of consolidated pretrial proceedings and trial to the United States District Court for the District of Columbia; provided however, that no such action shall be transferred if pretrial proceedings in that action have been concluded before a subsequent action is filed by a State attorney general or authorized State governmental authority.