Membership in the credit union is voluntary and is open to all citizens bound by with joint work or residence, who wished to create a credit union to use its services and are willing to take on relevant commitments and responsibilities. Typically new members of the credit union become citizens having suretyship or recommendations from their friends - members of the credit union. Until the mid-XX century, credit unions in the United States had little assets that did not exceed, as a rule, 100 thousand dollars Taking a decision to join a credit union, citizens create an organization through which they participate in the shared savings by mutual crediting and joint (collective) use of personal savings. To increase the number of credit unions in 1979 was adopted the corresponding law that serves as the legal basis of their activity.