The role of fair value accounting in the subprime mortgage crisis of 2008 is controversial. Fair value accounting was issued as US accounting standard SFAS 157 in 2006 by the privately run Financial Accounting Standards Board (FASB)—delegated by the SEC with the task of establishing financial reporting standards. This required that tradable assets such as mortgage securities be valued according to their current market value rather than their historic cost or some future expected value. When the market for such securities became volatile and collapsed, the resulting loss of value had a major financial effect upon the institutions holding them even if they had no immediate plans to sell them.