The report describes the plans for decommissioning of the nuclear research and material test reactors R2 and R2-0, situated at the Studsvik site in Sweden. The purpose of the document is to serve as information for the European Commission, and to fulfil the requirements of Article 37 of the Euratom Treaty. According to Article 37, each Member State shall provide the Commission with such general data as will make it possible to determine whether the planned activities are liable to result in radioactive contamination of another Member State. The report represents a revision of a report that earlier was presented to the European Commission, SSM Report 2009:01.