Article 30. The environmental authorities are to ensure that, to the extent possible, the environmental information relevant to their duties and which they have at their disposal or which is managed for them, is categorised, accurate, comparable and kept up to date. The environmental authorities designated by the Flemish Government are to ensure that the environmental information is disseminated to the population or to the target groups concerned in an active, systematic and transparent way and made available in an effective manner. The Flemish Government prescribes which environmental information is to be disseminated at least and establishes rules and regulations about the way in which environmental information is to be disseminated and made accessible.