In US accounting practices, the Accounting Standards Codification (ASC) is the current single source of United States Generally Accepted Accounting Principles (GAAP). It is maintained by the Financial Accounting Standards Board (FASB).
FASB accounting standards codification
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 All prior accounting standards documents were superseded as described in FASB Statement No. 168, The FASB Accounting Standards Codification and the Hierarchy of Generally Accepted Accounting Principles.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.
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.
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