be exercised or performed by the Secretary of Commerce or by such persons as the Secretary of Commerce may designate. (6) Citizen actions (A) In general Except as provided in subparagraph (D), any person may commence a civil action to enjoin any person, including the United States and any other governmental instrumentality or agency (to the extent allowed by the 11th Amendment to the Constitution), that is alleged to be in violation of subsection (b). (B) Jurisdiction of district courts The United States District Court for the judicial district in which the alleged violation occurs shall have jurisdiction in all actions brought under this paragraph, without regard to the amount in controversy or the citizenship of the parties. (C) Intervention by Attorney General In any action under this paragraph in which the United States is not a party, the Attorney General may intervene on behalf of the United States as a matter of right. (D) Exceptions No action may be commenced under this paragraph for an alleged violation of subsection (b)— (i) before the date that is 60 days after the date on which written notice of such alleged violation is given to the Secretary of the Interior, the Secretary of Commerce, and any alleged violator of such subsection