; (15) by striking the items relating to North Carolina and inserting the following: North Carolina: Eastern 4 Middle 4 Western 5 ; and (16) by striking the items relating to Texas and inserting the following: Texas: Northern 13 Southern 23 Eastern 10 Western 19 . 4. GAO report on vacant and underutilized courthouses Not later than 1 year after the date of enactment of this Act, the Comptroller General of the United States shall make publicly available a report identifying Federal courthouses that are vacant or underused. 5. Authorization of appropriations There are authorized to be appropriated such sums as may be necessary to carry out this Act and the amendments made by this Act, including such sums as may be necessary to provide appropriate space and facilities for the judicial positions created by this Act or an amendment made by this Act.