Most modern credit unions represent specialized consumer cooperatives of citizens associated by the principle of social community: place of work, place of residence, profession, or any other shared interest. Some credit unions are closed, serving only their members. However, the more and more popularitywin cooperatives of open type. To reduce the risk of default on loans members of the credit union shall the joint guarantee. 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. Credit Union - a non-profit financial institution specialized in mutual financial assistance by providing savings and credit services to their members. Credit unions encourage the proper use of shareholders savings, developing social programs (education, health, recreation, housing, etc.). 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.