Abstract
Abstract
The German regulatory guide on probabilistic safety assessment (PSA) describes the fundamental requirements concerning the performance of PSA in the frame of comprehensive safety reviews. The technical details regarding the performance of PSA are set out in two technical documents (PSA Methods and PSA Data) that have been developed by a working group of PSA experts (FAK PSA). Based on the experiences from the first series of periodic safety reviews in Germany, international experiences and the fact that comprehensive safety reviews are now mandatory since April 2002 all guides have to be revised. The first guide updated was the PSA guide together with the corresponding technical documents, issued in October and November 2005. In the following the key points of the revised requirements on PSA methods and data are described.