(a) There is authorized to be appropriated for the fiscal year ending June 30, 1975, to the Federal judiciary the sum of $2,500,000 to be allocated by the Administrative Office of the United States Courts to Federal judicial districts to carry out the initial phases of planning and implementation of speedy trial plans under this chapter. The funds so appropriated shall remain available until expended.

(b) No funds appropriated under this section may be expended in any district except by two-thirds vote of the planning group. Funds to the extent available may be expended for personnel, facilities, and any other purpose permitted by law.