Activity of the credit union consists of organizing mutual financial assistance by meeting the needs of its members in the services of saving and obtaining loans. Among the U.S. credit unions, there are three groups that differ in terms of assets, shareholders, and business services. International cooperation has been particularly felt since the days when Alphonse Desjardins began the activity on development of credit union movement in North America. Initially, the target groups of credit unions were farmers (Raiffeisen), and now they include both individuals (credit unions), and organizations. To increase the number of credit unions in 1979 was adopted the corresponding law that serves as the legal basis of their activity.