The Aarhus Convention became a part of the Serbian legal system through the adoption of the Law on Ratification of the Convention on Access to Information, Public Participation in Decision Making and Access to Justice in Environmental Matters in May 2009. Although the legislation in Serbia, prior to the ratification of the Aarhus Convention, pointed, to some extent, to the realization of ideas promoted by it, following the ratification, there was the formal possibility of the consistent application of rights stipulated by the Convention. This article analyses the role of information technology (IT) in providing public access to environmental information. There are three basic ways IT may be applied in environmental protection. First, through the use of IT for environmental matters, the public can be informed about the general condition of the environment. In the legal system of Serbia, the Agency for Environmental Protection is obliged to collect environmental information from local government and compile annual reports on the environment that should be presented on the Agency website. This article analyses the information systems of the Serbian Agency for Environmental Protection and the further possibilities of using these. Second, IT can be used as a way of regular communication between government and citizens. In accordance with the principle of transparency, government bodies are obliged to provide an adequate way for the public to have an insight into their work. In addition, the authorized person is responsible for the accuracy of this information and for providing public access within a reasonable timeframe. In this sense, the article analyses the legal framework of e-access to environmental information and the relevant practice of the Commissioner for Information of Public Importance and Personal Data Protection. Third, the application of IT in environmental matters can promote public participation in environmental decision-making. If there were a legal framework, the public would be able to participate in procedures, such as environmental impact assessments, by submitting their opinions as e-documents. This article points out the relations between the application of IT and the level of public awareness about the environment, and the impact these relations have on environmental protection. Points for practitioners The article examines whether there is a possibility of using IT as a means of achieving daily communication between government and citizens in matters of the protection, preservation and improvement of the environment in Serbia, how the application of information technology achieves wider public participation in environmental decision-making, and whether the application of IT can eliminate deficiencies in the assessment of environmental impacts which occur in practice. The article provides an overview of environmental legislation in Serbia, which regulates the possibility of using IT in environmental protection and administrative practice.