; deposits (a) Direct appropriation There are appropriated, out of monies in the Treasury not otherwise appropriated, $2,000,000,000 as follows: (1) $1,500,000,000 to carry out the Program, including any administrative costs incurred in carrying out the Program. (2) $500,000,000 to carry out the follow-on investments program established under section 4, including any administrative costs incurred in carrying out that program. (b) Authorization of future appropriations In addition to the appropriation under subsection (a), there is authorized to be appropriated to the Secretary such sums as may be necessary to carry out this Act. (c) Deposits In addition to the amount appropriated under subsection (a), and any amounts that may be appropriated under the authorization provided under subsection (b), the Secretary may, in accordance with the requirements of this Act, expend any funds repaid to the Secretary under section 5(b). (d) Availability of funds (1) In general The amount appropriated under subsection (a), and any amounts that may be appropriated under the authorization provided under subsection (b), shall remain available, without fiscal year limitation, until expended. (2) Availability of certain deposits Any amounts repaid to the Secretary as described in subsection (c) shall remain available, without fiscal year limitation, until expended.