Judicial Reorganization Act of 2021 This bill creates a new U.S. Court of Appeals by dividing the current U.S. Court of Appeals for the Ninth Circuit. The newly created U.S. Court of Appeals for the Twelfth Circuit shall have jurisdiction over Alaska, Arizona, Idaho, Montana, Nevada, Oregon, and Washington. The U.S. Court of Appeals for the Ninth Circuit shall retain jurisdiction over California, Guam, and Hawaii.