; and (2) with full recognition of the constitutional right of either House to change the rules (so far as they relate to the procedure of that House) at any time, in the same manner, and to the same extent as in the case of any other rule of that House. 12. Termination of effect of Act (a) Provisions pertaining to the Review Board The provisions of this Act that pertain to the appointment and operation of the Review Board shall cease to be effective when the Review Board and the terms of its members have terminated under section 7(o). (b) Other provisions The remaining provisions of this Act shall continue in effect until such time as the Archivist certifies to the President and Congress that all Missing Armed Forces Personnel records have been made available to the public in accordance with this Act. 13. Authorization of appropriations (a) In general There are authorized to be appropriated such sums as are necessary to carry out this Act, to remain available until expended. (b) Interim funding Until such time as funds are appropriated pursuant to subsection (a), the President may use such sums as are available for discretionary use to carry out this Act. 14. Severability If any provision of this Act, or the application thereof to any person or circumstance, is held invalid, the remainder of this Act and the application of that provision to other persons not similarly situated or to other circumstances shall not be affected by the invalidation.