or judges to whom the coordinated or consolidated pretrial proceedings have been assigned shall have jurisdiction over any disputes regarding compliance with this requirement. . 6. Rulemaking authority of Supreme Court and Judicial Conference Nothing in this Act shall restrict in any way the authority of the Judicial Conference and the Supreme Court to propose and prescribe general rules of practice and procedure under chapter 131 of title 28, United States Code. 7. Effective date The amendments made by the Act shall apply to any civil action pending on the date of enactment of this Act or commenced thereafter.