4.6.  Certificate of Agent

The Authority shall be entitled to rely on the certificate of the Agent as conclusive as to the amount of the Base Senior Debt Termination Amount or the Revised Senior Debt Termination Amount outstanding at the relevant time.  The receipt of the Agent of the Base Senior Debt Termination Amount or the Revised Senior Debt Termination Amount or elements thereof as relevant shall discharge the Authority's obligations to pay such sums to the Contractor.