; or (3) who elects to be assigned to the twelfth circuit under section 7, shall run from the date of commission of such judge as a judge of the former ninth circuit. (b) Temporary twelfth circuit judges The seniority of each judge appointed under section 8(a) shall run from the date of commission of such judge as a judge of the twelfth circuit. 10. Application to cases The following apply to any case in which, on the day before the effective date of this Act, an appeal or other proceeding has been filed with the former ninth circuit: (1) Except as provided in paragraph (3), if the matter has been submitted for decision, further proceedings with respect to the matter shall be had in the same manner and with the same effect as if this Act had not been enacted. (2) If the matter has not been submitted for decision, the appeal or proceeding, together with the original papers, printed records, and record entries duly certified, shall, by appropriate orders, be transferred to the court to which the matter would have been submitted had this Act been in full force and effect on the date on which such appeal was taken or other proceeding commenced, and further proceedings with respect to the case shall be had in the same manner and with the same effect as if the appeal or other proceeding had been filed in such court. (3) If a petition for rehearing en banc is pending on or after the effective date of this Act, the petition shall be considered by the court of appeals to which the petition would have been submitted had this Act been in full force and effect on the date on which the appeal or other proceeding was filed with the court of appeals. 11. Administration (a) In general The court of appeals for the ninth circuit as constituted on the day before the effective date of this Act may take such administrative action as may be required to carry out this Act and the amendments made by this Act. (b) Administrative termination The court described in subsection (a) shall cease to exist for administrative purposes 2 years