; (II) the secured loan is secured and payable from pledged revenues not affected by project performance, such as a tax-backed revenue pledge or a system-backed pledge of project revenues; and (III) the BIFIA program share of eligible project costs is 33 percent or less. (ii) Limitation If the Assistant Secretary waives the nonsubordination requirement under this subparagraph— (I) the maximum credit subsidy to be paid by the Federal Government shall be not more than 10 percent of the principal amount of the secured loan; and (II) the obligor shall be responsible for paying the remainder of the subsidy cost, if any. (7) Fees The Assistant Secretary may establish fees at a level sufficient to cover all or a portion of the costs to the Federal Government of making a secured loan under this section. (8) Non-Federal share The proceeds of a secured loan under the BIFIA program, if the loan is repayable from non-Federal funds— (A) may be used for any non-Federal share of project costs required under this Act; and (B) shall not count toward the total Federal assistance provided for a project for purposes of paragraph (9). (9) Maximum Federal involvement The total Federal assistance provided for a project receiving a loan under the BIFIA program shall not exceed 80 percent of the total project cost. (c) Repayment (1) Schedule The Assistant Secretary shall establish a repayment schedule for each secured loan under this section based on— (A) the projected cash flow from project revenues and other repayment sources