National Credit Union Administration (NCUA) - an independent federal agency, based in Washington (State of Columbia), established by the U.S. Congress to oversee the federal credit union system. Credit unions encourage savings of citizens, setting compensation payments (interest) on savings and provide from these savings loans to their members. Cooperation between credit unions, how they would not have been named, took place always, from the moment when the movement moved outside one credit union. The value of credit unions is not limited to the role of the economic agent - they are an important element of the social structure and a factor of social stability and progress. In the UK, credit unions are a source of financing of people groups. This tool is not widely used.