What is International Accounting Standards Board?

Legal Definition
The International Accounting Standards Board (IASB) is the independent, accounting standard-setting body of the IFRS Foundation.

The IASB was founded on April 1, 2001, as the successor to the International Accounting Standards Committee (IASC). It is responsible for developing International Financial Reporting Standards (IFRS), previously known as International Accounting Standards (IAS) and promoting the use and application of these standards.
-- Wikipedia