Typically, donor contributions to the credit unions are targeted and used in the same statutory requirements and restrictions as the Mutual Financial Aid fund as a whole. Is necessary that all shareholders of the credit union were members of a single community, would know each other well enough to enjoy mutual trust. Cooperation between credit unions, how they would not have been named, took place always, from the moment when the movement moved outside one credit union. 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. To increase the number of credit unions in 1979 was adopted the corresponding law that serves as the legal basis of their activity.