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, 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. First central bank of credit unions appeared in 1876. Credit unions began to appear rapidly in many European countries. The supreme body of the World Council of Credit Unions is the Assembly, which elects the president and the board of directors of WOCCU.