Estonia is a democratic, parliamentary republic with a health care system that is built on the principle of compulsory, solidarity-based insurance and the all-round availability of services of private service providers. Estonia has specific biobank legislation as well as oversight via data protection laws. Its population-based biobank, the Estonian Genome Center (EGCUT), established in 2001, is one of the largest biobanks in Europe, and its database may be used only for scientific research, public health research, and statistics. The EGCUT can issue data to a third party, but only in coded form. This comprehensive database of genotypic, phenotypic, health, and genealogical information represents about 5% of Estonia's adult population, and is the largest cohort ever gathered in Estonia. Government approval is required for international data sharing, and sharing can be further limited by the requirement of ethics approval and permission from Estonian government.