Each of the Company and its Restricted Subsidiaries has filed all United States federal tax returns and all other material tax returns that are required to be filed with any Governmental Authority and has paid all Taxes required to be paid by it, except (i) such Taxes, if any, as are being contested in good faith and as to which reserves have been provided in accordance with GAAP and as to which no Lien (other than as permitted by Section 6.16) exists or (ii) where the failure to do so could not reasonably be expected to result in a Material Adverse Effect. No tax Liens have been filed and no claims are being asserted with respect to any such Taxes, other than as permitted by Section 6.16.