To date, credit unions - virtually the only form of financial institution where people can quickly and without any problems get a relatively inexpensive cash loan. Among the U.S. credit unions, there are three groups that differ in terms of assets, shareholders, and business services. A potential new member of a credit union must submit a recommendation of shareholders in which the referee becomes a warrant of a future member of the credit union. The relationship of shareholders with credit union are not client-based, they are co-operative, based on different principles and standards, in particular, on the principles of the law of obligations. International cooperation has been particularly felt since the days when Alphonse Desjardins began the activity on development of credit union movement in North America. In some cases, the initiators of credit unions can be trade unions, associations such as social support centers and others. 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.