This report presents the fi ndings of a review of the Swedish NuclearFuel and Waste Management Co.’s (SKB) interimreport of the safety assessment SR-Can (SKB TR 04-11), conducted by the Swedish Radiation Protection Authority (SSI) and the Swedish Nuclear Power Inspectorate (SKI). SKB’s interim report describes and exemplifi es the safety assessment methodology that SKB plans to use in the oncoming licence applications for an encapsulation plant and a fi nal repository for spent nuclear fuel. The authorities’ review takes into account the fi ndings of an international peer review of SKB’s interim report (Sagar et al, 2004). The authorities conclude that SKB has improved its safety assessment methodology in several aspects compared to earlier safety reports. Among other tings the authorities commend SKB for giving a comprehensive account of relevant regulations and guidance, and for the systematic approach to identifi cation and documentation of features, events and processes that need to be considered in the safety assessment. However, the authorities also conclude that important parts of SKB’s method need to be further developed before they are mature enough to be used as a basis for a license application. The authorities’ overall assessment is summarised in chapter8 of this report.