The Secretary may undertake and carry out such studies and investigations, and receive or exchange such information, as may be necessary to formulate a premium schedule which will enable the insurance and reinsurance authorized by this section to be provided on a basis which is (1) in accordance with accepted actuarial principles; and (2) fair and equitable.
There are authorized to be appropriated to the insurance fund, as repayable advances, such sums as may be necessary to meet obligations incurred under subsection (g). All such sums shall remain available without fiscal year limitation. Advances made pursuant to this subsection shall be repaid, with interest, to the general fund of the Treasury when the Secretary determines that moneys are available in the insurance fund for such repayments. Interest on such advances shall be computed in the same manner as provided in subsection (b)(2) of section 934a  of this title.