The Administration shall collect a one-time fee in an amount equal to 50 basis points on the total participation in any project of any institution described in subclause (I), (II), or (III) of section
696
(3)(B)(i) of this title. Such fee shall be imposed only when the participation of the institution will occupy a senior credit position to that of the development company. All proceeds of the fee shall be used to offset the cost (as that term is defined in section
661a of title
2) to the Administration of making guarantees under subsection (a) of this section.