Pub. L. 88-258, tit. VI, sec. 603

Sec. 603. Appropriations and other funds made available in acts making appropriations for the fiscal year ending June 30, 1964, shall be reserved and withheld from obligation through the apportionment procedure prescribed by law (31 U.S.C. 665) to the maximum extent possible, as determined by the Director of the Bureau of the Budget, on account of savings arising from enactment of any such acts after the beginning of such fiscal year. Nothing herein shall be construed to limit existing authority of law for reserving appropriations.