To amend title 28, United States Code, to provide for the appointment of additional Federal circuit judges, to divide the Ninth Judicial Circuit of the United States into two judicial circuits, and for other purposes.

Ninth Circuit Court of Appeals Judgeship and Reorganization Act of 2017 This bill divides the U.S. Court of Appeals for the Ninth Circuit into: (1) the Ninth Circuit, composed of California, Guam, Hawaii, and Northern Mariana Islands; and (2) the Twelfth Circuit, composed of Alaska, Arizona, Idaho, Montana, Nevada, Oregon, and Washington. The President must appoint two additional judges for the former Ninth Circuit, three judges for the new Ninth Circuit, and two additional temporary judges for the former Ninth Circuit. The bill: (1) specifies the locations where new circuits are to hold regular sessions, (2) distributes active circuit judges of the former Ninth Circuit to the new circuits, (3) allows senior circuit judges of the former Ninth Circuit to elect assignment, and (4) authorizes administrative coordination between any two contiguous circuits.