The Borrower will, and will cause each Principal Subsidiary to, timely file complete and correct United States federal and applicable foreign, state and local tax returns required by law and pay when due Taxes imposed upon it or upon its property, except those which are being contested in good faith by appropriate proceedings and with respect to which adequate reserves have been set aside in accordance with generally accepted accounting principles or where nonpayment could not reasonably be expected to have a Material Adverse Effect.