; and (ii) may include a commitment, contingent on amounts to be specified in law in advance for commitments under this paragraph, to obligate an additional amount from future available budget authority specified in law. (B) Statement of contingent commitment The agreement shall state that the contingent commitment is not an obligation of the Federal Government. (C) Interest and other financing costs (i) In general Interest and other financing costs of carrying out a part of the project within a reasonable time shall be considered a cost of carrying out the project under a multiyear grant agreement, except that eligible costs may not be more than the cost of the most favorable financing terms reasonably available for the project at the time of borrowing. (ii) Certification The applicant shall certify to the Secretary that the applicant has shown reasonable diligence in seeking the most favorable financing terms. (4) Advance payment Notwithstanding any other provision of law, an entity carrying out a large project under a multiyear grant agreement— (A) may use funds made available to the entity under this title for eligible project costs of the large project until the amount specified in the multiyear grant agreement for the project for that fiscal year becomes available for obligation; and (B) if the entity uses funds as described in subparagraph (A), the funds used shall be reimbursed from the amount made available under the multiyear grant agreement for the project. (j) Undertaking parts of projects in advance under letters of no prejudice (1) In general The Secretary may pay to an applicant all eligible project costs under the Program, including costs for an activity for an eligible project incurred prior to the date on which the project receives funding under the Program if— (A) before the applicant carries out the activity, the Secretary approves through a letter to the applicant the activity in the same manner as the Secretary approves other activities as eligible under the Program