New developments in EU family law is to promote free movement of citizens by the means relatively independent from the secondary law of EU and not violating the subsidiary principle. In recent years the mobility of EU citizens related to family matters have reached into Estonian legal and administrative space requiring new public policy to cope with problems caused by the cross border family relations. One of such problems is related to marriage capacity. In Green Paper Less bureaucracy for citizens: promoting free movement of public documents and recognition of the effects of civil status records the following means are proposed: abolition of administrative formalities for the authentication of public documents, cooperation between the competent national authorities, limiting translation of public documents, European civil status certificate and mutual recognition of the effect of civil status records. Implementing those means needs cooperation and agreements between member states and their public administration, demands also good administrative capacity and inclination to converge the family laws of member states, which is not easy to attain because of several legal, cultural and administrative obstacles.