definiens: means : ( a ) immaterial stat utory liens for Taxes that are not yet due and payable or immaterial lien s for Taxes being contested in good faith by any ap propriate proceedings for which adequate reserves have been e stablished ; ( b ) immaterial statutory liens to secur e obligations not yet due to landlords, lessors or re nters under leases or rental agreements ; ( c ) immate rial deposits or pledges made in connection with, or to secure pa yment of, workers ’ compensation, unemployment insur ance or similar programs mandated by applicable Legal Re quirements ; ( d ) immaterial statutory liens in favor of carriers, warehousemen, mechanics and materialmen, to secure claims not yet due or payable for labor, materials or supplies ; and ( e ) other liens or encumbrances th at [ * * * ] Certain information in this document has been omitted and filed separately with the Securities a nd Exchange Commission Confidential treatment has been requested with resp ect to portions of this agreement