Representative organization, leading the coordination work in the field of development of both global and national credit union movement is the World Council of Credit Unions (WOCCU) established in 1971 (headquartered in Madison, USA). Among the U.S. credit unions, there are three groups that differ in terms of assets, shareholders, and business services. Credit unions of the open type are still controlled by their members, but at the same time provide services to people who are not its members (external customers). Credit Union - a non-profit financial institution specialized in mutual financial assistance by providing savings and credit services to their members. Unlike banks, in order to use the services of a credit union, you have to become its member, having written an application and having paid thus shares and membership fee. To increase the number of credit unions in 1979 was adopted the corresponding law that serves as the legal basis of their activity.