; or (2) the validity of this Act. (b) Supreme Court of the United States The Supreme Court of the United States may not exercise appellate jurisdiction over a case or controversy described in subsection (a). 9. Offset allowed The Administrator may use the proceeds from the sale of any Federal building, land, or asset to offset the cost of relocating the headquarters of the covered agency and the covered permanent duty station of employees of the covered agency under this Act. 10. Authorization of appropriations There are authorized to be appropriated such sums as are necessary to carry out this Act.