Among the U.S. credit unions, there are three groups that differ in terms of assets, shareholders, and business services. Over 30% of the assets of credit unions are investments in government securities, certificates of deposit of banks and savings loan associations, as well as in the parent credit unions, and other risk-free investments. The supreme body of the World Council of Credit Unions is the Assembly, which elects the president and the board of directors of WOCCU. 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.