In 1908. the spread of credit unions has reached the United States. In 1935 President Roosevelt signed the state Charter on credit unions, which became a law. In recent decades, many credit unions began to resort to such form of service as Some credit unions are closed, serving only their members. However, the more and more popularitywin cooperatives of open type. Principles of cooperative democracy and interaction were adequate to the purposes for which people joined credit unions. When organizing the credit union it is important that people know each other and know the extent to which each of them is trustworthy. 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.