Because PASTELS results will have been elaborated within a consortium consisting of operators, designers, academics and regulatory bodies, using PASTELS’ sound experimental basis, a reduction of 1-2 years is expected in the licensing timeframe for the introduction of such innovative passive systems. This reduction is estimated based on the advances made on the qualification of the codes for passive systems and the design activities (using different parametric studies and operating scenarios) performed on the SACO and CWC components. Extrapolation to the reactor scale is foreseen in this context.