Provisions concerning the societies and foundations raise difficulties for judges, lawyers and judicial staff proceeding in the interest of registration of non-governmental organizations for a long time. The study examines the registration of non- governmental organizations with a view to provisions of substantive and procedural law and attempts to demonstrate problems being the cause of legal uncertainty. Finally the author puts forward a proposal for correction of regulation concerning the non-governmental organizations and suggests introducing methods in the interest of predictable application of law.