fee arrangements The Administration may use such alternative arrangements (such as profit participation, contingent fees, and other valuable contingent interests) as the Administration considers appropriate to compensate the Administration for the expenses of the Administration and the risk inherent in the support of the Administration. (d) Cost transfer authority Amounts collected by the Administration for the cost of a loan or loan guarantee shall be transferred by the Administration to the respective credit program accounts. (e) Supplemental borrowing authority In order to maintain sufficient liquidity for activities authorized under section 104(b), the Administration may issue notes, debentures, bonds, or other obligations for purchase by the Secretary of the Treasury. (f) Public debt transactions For the purpose of subsection (e)— (1) the Secretary of the Treasury may use as a public debt transaction the proceeds of the sale of any securities issued under chapter 31 of title 31, United States Code