CleanSeaNet is a near-real-time satellite-based oil spill and vessel monitoring service. It entered into operation on 16 April 2007. The service is continually being expanded and improved and provides a range of different products to the Commission and to EU Member States, and to other governmental and institutional partners as appropriate.

The legal basis for the CleanSeaNet service is Directive 2005/35/EC on ship-source pollution and on the introduction of penalties, including criminal penalties, for pollution offences (as amended by Directive 2009/123/EC). EMSA has been tasked to 'work with the Member States in developing technical solutions and providing technical assistance in relation to the implementation of this Directive, in actions such as tracing discharges by satellite monitoring and surveillance'.

This website provides information on the CleanSeaNet service to the general public, and gives access to the CleanSeaNet service for registered users.