Subject to the limitations hereinafter provided, the Secretary of the Treasury is authorized and directed to pay, as prescribed by section
1627 of this title, an amount not exceeding the principal of each award, plus accrued interest on such awards as bear interest, certified pursuant to section
1624 of this title, in accordance with the award. Such payments, and applications for such payments, shall be made in accordance with such regulations as the Secretary of the Treasury may prescribe.