Basis for the Safety Approach for Design & Assessment of Generation IV Nuclear Systems - Rev 2 - 2021
A report by the GIF Risk and Safety Working Group (RSWG).
This document represents the second revision of the foundational safety report first published in 2008 by the Generation IV International Forum (GIF) Risk and Safety Working Group (RSWG). Requested by the GIF Policy Group, this updated version reflects the experience gained over the past decade in the development and application of the Integrated Safety Assessment Methodology (ISAM), and incorporates lessons learned from the Fukushima Daiichi accident, as well as new safety requirements issued by international bodies including the IAEA, OECD, EC, and WENRA.
The report provides a high-level overview of safety-related achievements since 2008, supplementing the original objectives, principles, and attributes to continue guiding R&D activities. It reaffirms the RSWG’s commitment to a consistent and effective safety approach for Generation IV nuclear energy systems, and outlines the evolution of safety philosophy, design practices, and assessment methodologies. The document also highlights future directions for the RSWG, including the development of technology-specific safety criteria and continued collaboration with system designers and other GIF working groups.