The Secretary of the Treasury may, at any time, or from time to time, make supplemental or amendatory declaration of valuables. [4 FR 3796, Sept. 1, 1939, as amended at 5 FR 2653, July 25, 1940. Redesignated at 49 FR 47002, Nov. 30, 1984. Further redesignated at 50 FR 51394, Dec. 17, 1985]