We have prepared our consolidated financial statements in accordance with U.S. GAAP . Our significant accounting policies, as described in Note [1] to the Consolidated Financial Statements, are essential to understanding our reported results of operations and financial condition. Certain of these accounting policies require critical accounting estimates that involve complex and subjective judgments and the use of assumptions, some of which may be for matters that are inherently uncertain and susceptible to change. Such critical accounting estimates could change from period to period and have a material impact on financial condition, changes in financial condition or results of operations. Critical accounting estimates could also involve estimates where management could have reasonably used another estimate in the current accounting period. Actual results may differ from these estimates if conditions or underlying circumstances were to change.
We review the selection of these policies and the application of these critical accounting estimates with the Audit Committee of our Supervisory Board. We have identified the following significant accounting polices that involve critical accounting estimates.