needed, that are only purchasable using dividends to which section 965(g) of the Internal Revenue Code of 1986 applied. (B) Use of repatriated cash to purchase securities For treatment of dividends used to purchased special bonds under this paragraph, see section 965(g) of the Internal Revenue Code of 1986. (C) 5-year limitation The Holding Company may not issue any new Repatriation Bonds after the end of the 5-year period beginning on the date the Bank is established. (3) Other bonds The Holding Company may issue such other bonds, notes, and marketable securities with maturities and interest rates as the Holding Company determines appropriate. (4) Initial issuance amount The Holding Company shall have the goal of making initial bond sales in an aggregate amount of $1,000,000,000,000 or more. (5) Treasury oversight and authority to purchase bonds (A) Approval required Before issuing any bonds, the Holding Company shall submit a proposal for such bond issuance to the Secretary, and the Holding Company may only issue such bonds if the Secretary approves the proposal. (B) Authority to purchase bonds (i) In general The Secretary may purchase bonds issued under this subsection. (ii) Limitation The aggregate amount of outstanding bonds purchased by the Secretary under this subsection may not exceed 5 percent of the total amount of the Holding Company’s outstanding bonds. (c) Leverage limitation The Holding Company and the Bank shall seek to maintain risk based capital at no less than 10 percent. 5. Oversight and regulation (a) Board of Governors of the Federal Reserve System The Board of Governors of the Federal Reserve System shall have oversight and supervisory authority over the Infrastructure Bank Holding Company and the Bank in order to ensure the safe and sound operations of the Infrastructure Bank Holding Company and the Bank. (b) Secretary of the Treasury The Secretary shall establish an office, which shall report to the Assistant Secretary of the Treasury for Financial Institutions, which shall have oversight