; 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 eligible entity carrying out a large project under a multiyear grant agreement— (A) may use funds made available to the eligible 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