The SEE area is a sea and river transit space of vessels carrying hazardous freight which constitutes many potential environmental risks for coasts and inland waterways. Economic development and a strong growth of transport and increased traffic in the SEE area aggravate the already increased threats of pollution and thus require a good management and high performance of observation, communication and monitoring response systems. The SEE MARINER project is focusing on mitigating environmental risks arising from the transportation of dangerous goods in marine areas and rivers by applying an integrated system for the joint prevention and response procedures, enhanced monitoring of maritime and river traffic and increased coordination capacity for the mobilization of the relevant authorities and stakeholder groups. SEE MARINER will achieve a measurable improvement in the interoperability of monitoring activities in the prevention of environmental risks. The much needed exchange of knowledge and the analysis of existing good practices in systems for monitoring the transport of dangerous goods will consequently lead to the key outcome of SEE MARINER, the development and implementation of a innovative, transferable and replicable system and the foundation of the SEE MARINER Network offering tools and services to improve the interoperability of monitoring activities and increase the effectiveness of operations for the joint prevention of environmental risks arising in cases of emergency. All partners participate in trainings, working groups and seminars and will apply the SEE MARINER system in their own locality. Cross sectoral evaluation and high level policy recommendations will highlight the gateway for potential followers in the SEE area and will build the basis for long term sustainability. Achievements: • SEE Mariner Information System• Monitoring the management of dangerous goods in navigation sector• Report from research on existing SEE marine and river information systems• SEE marine and river information system for monitoring the management of dangerous goodsFor more information see:http://www.southeast-europe.net/en/projects/approved_projects/?id=147