; and (2) by adding at the end the following: (2) Renegotiation of terms (A) In general At the request of a non-Federal interest, the Secretary and the non-Federal interest may renegotiate the terms and conditions of an eligible deferred payment, including— (i) permitting the non-Federal contribution to be made without interest, pursuant to paragraph (1); (ii) recalculation of the interest rate; (iii) full or partial forgiveness of interest accrued during the period of construction; and (iv) a credit against construction interest for a non-Federal investment that benefits the completion or performance of the project or separable element. (B) Eligible deferred payment An eligible deferred payment agreement under subparagraph (A) is an agreement for which— (i) the non-Federal contribution was made with interest; (ii) the period of project construction exceeds 10 years from the execution of a project partnership agreement or appropriation of funds