<Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> In US accounting practices, the Accounting Standards Codification is the current single source of United States Generally Accepted Accounting Principles (GAAP). It is maintained by the Financial Accounting Standards Board (FASB). </P> <P> The codification is effective for interim and annual periods ending after September 15, 2009 . All prior accounting standards documents were superseded as described in FASB Statement No. 168, The FASB Accounting Standards Codification and the Hierarchy of Generally Accepted Accounting Principles . Accounting literature not included in the Codification is non-authoritative . </P> <P> The Codification reorganizes the thousands of U.S. GAAP pronouncements into roughly 90 accounting topics and displays all topics using a consistent structure . It also includes relevant U.S. Securities and Exchange Commission (SEC) guidance that follows the same topical structure in separate sections in the Codification . </P>

When did fasb codification become authoritative u.s. gaap