; or (B) debt servicing capabilities of the project to be financed by the loan (as determined by the Corporation). (3) The Corporation shall, with respect to providing any loan guaranty to a project, require the parties to the project to bear the risk of loss in an amount equal to at least 20 percent of the guaranteed support by the Corporation in the project. (4) The Corporation may not make or guarantee a loan unless the Corporation determines that the borrower or lender is responsible and that adequate provision is made for servicing the loan on reasonable terms and protecting the financial interest of the United States. (5) The interest rate for direct loans and interest supplements on guaranteed loans shall be set by reference to a benchmark interest rate (yield) on marketable Treasury securities or other widely recognized or appropriate benchmarks with a similar maturity to the loans being made or guaranteed, as determined in consultation with the Director of the Office of Management and Budget and the Secretary of the Treasury. The Corporation shall establish appropriate minimum interest rates for loans, guaranties, and other instruments as necessary. (6) The minimum interest rate for new loans as established by the Corporation shall be adjusted periodically to take account of changes in the interest rate of the benchmark financial instrument. (7) (A) The Corporation shall set fees or premiums for support provided under this title at levels that minimize the cost to the Government while supporting achievement of the objectives of support. (B) The Corporation shall review fees for loan guaranties periodically to ensure that the fees assessed on new loan guaranties are at a level sufficient to cover the Corporation’s most recent estimates of its costs. (8) Any loan guaranty provided by the Corporation shall be conclusive evidence that— (A) the guaranty has been properly obtained; (B) the loan qualified for the guaranty