997.2—Reduction of the payment term.

(a) Generally. The Finance Board shall shorten the term of the obligation of the Banks to make payments toward the interest owed on bonds issued by the REFCORP for each quarter in which there is an excess quarterly payment.
(b) Excess quarterly payment. Where there is an excess quarterly payment, the quarterly present-value determination shall be as follows:
(1) The future value of the excess quarterly payment shall be calculated using the estimated interest rate corresponding to the last non-defeased benchmark quarterly payment.
(2) The future value calculated in paragraph (b)(1) of this section shall be subtracted from the amount of the last non-defeased quarterly benchmark payment.
(3) If the difference resulting from the calculation in paragraph (b)(2) of this section is greater than zero, then the last non-defeased quarterly benchmark payment is reduced by the future value of the excess quarterly payment.
(4) If the difference resulting from the calculation in paragraph (b)(2) of this section is less than zero, then the last non-defeased quarterly benchmark payment shall be defeased and the payment term shall be shortened.
(5) The amount of the excess quarterly payment that has not already been applied to defeasing the payment under paragraph (b)(4) of this section shall be applied toward defeasing the last non-defeased quarterly benchmark payment using the applicable estimated interest rate.