Authorization of appropriations

(a) In general There are authorized to be appropriated to the Commissioner, without fiscal year limitation, such sums as may be necessary to carry out this Act. (b) Availability of amounts Amounts appropriated pursuant to the authorization of appropriations under subsection (a) shall remain available until expended. (c) Supplement not supplant Amounts appropriated pursuant to the authorization of appropriations under subsection (a) shall supplement and not supplant other amounts available for such purposes.