The aim of the theses is to assess on the background of the actual stage of the international, European (EU) and national level of the EIA procedure legislation the effectiveness of this procedure in the Czech Republic, both regarding the requirements laid down for this procedure on the EU level as well as from the view of the particular national actors involved (i.e. developers, competent authorities, expert's reports makers and public concerned). The thesis has been divided into five substantial chapters. The first one describes the outcomes of the EIA procedure as such. The subsequent second and third chapter summarise the actual stage of the environmental impact assessment procedure on the supranational (international and EU) and nation...