((a)) There are authorized to be appropriated to carry out this chapter $10,000,000 for the fiscal year 1976, $12,000,000 for the fiscal year 1977, and $14,000,000 for the fiscal year 1978.

((b)) Any amounts appropriated under this section shall remain available until expended when so provided in appropriation Acts; and any amounts authorized for one fiscal year but not appropriated may be appropriated for the succeeding fiscal year.