Within this study, we have focused on factorsrelated to the entity, such as the internal characteristics, consisting mainlyin how the entity is managed, in order to identify the existence of certainassociations between the characteristics of corporate governance and theexistence of environmental reporting in the case of the Romanian companieslisted at Bucharest Stock Exchange. We have suggested a model comprisingcorporate governance characteristics such as size and structure of the board, existenceof the board committees and the practice of separation between Chief ExecutiveOfficer and Chairman of the board. We found that board independence and boardsize are factors that explain the level of environmental reporting withinRomanian companies. For assuring a high transparency level of environmentalperformance within a company, the board of directors should ensure a sufficientnumber of independent members able to exercise an independent reasoning inorder to solve potential conflicts of interests.