Division of Japan's Ministry of Finance.
http://www.fsa.go.jp/en/index.html
The Financial Services Agency is responsible for overseeing banking, securities and exchange, and insurance in order to ensure the stability of the financial system of Japan.
Key Facts
The FSA also oversees the Securities and Exchange Surveillance Commission and the Certified Public Accountants and Auditing Oversight Board.
Who it affects
Japan's financial services industry.
Wikipedia Entry
http://en.wikipedia.org/wiki/Financial_Services_Agency