((a)) ** .—** A policy, procedure, or directive described in subsection (b) remains in effect until superseded or amended under this subtitle or other appropriate authority.
((b)) ** .—** A policy, procedure, or directive referred to in subsection (a) is one that was in effect on , and that was prescribed by—
((1)) the Director of the Bureau of Federal Supply or the Secretary of the Treasury and that related to a function transferred to or vested in the Administrator of General Services on , by the Federal Property and Administrative Services Act of 1949;
((2)) an officer of the Federal Government under authority of the Surplus Property Act of 1944 (ch. 479, ) or other authority related to surplus property or foreign excess property;
((3)) the Federal Works Administrator or the head of a constituent agency of the Federal Works Agency; or
((4)) the Archivist of the United States or another officer or body whose functions were transferred on , by title I of the Federal Property and Administrative Services Act of 1949.