This excerpt taken from the AYR 8-K filed Sep 26, 2007.
APPLICATION OF CRITICAL ACCOUNTING POLICIES
Managements discussion and analysis of financial condition and results of operations is based upon our consolidated financial statements, which have been prepared in accordance with GAAP, requires us to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying footnotes. Our estimates and assumptions are based on historical experiences and currently available information. Actual results may differ from such estimates under different conditions, sometimes materially. A summary of our significant accounting policies is presented in the notes to our consolidated financial statements included elsewhere in this report. Critical accounting policies and estimates are defined as those that are both most important to the portrayal of our financial condition and results and require our most subjective judgments, estimates and assumptions. Our most critical accounting policies and estimates are described below.