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. Fund of Mutual Financial Aid of the credit union can be extended by sponsorship contributions from businesses, organizations, including on a returnable basis. Credit unions encourage savings of citizens, setting compensation payments (interest) on savings and provide from these savings loans to their members. To increase the number of credit unions in 1979 was adopted the corresponding law that serves as the legal basis of their activity.