CASH is an international benchmarking program organized under an initiative of the OECD-NEA (Nuclear Energy Agency). The main objective of CASH is to evaluate the reliability of predictive analysis tools and methods as well engineering practice know how to assess the seismic capacity of reinforced concrete shear walls to withstand strong earthquakes considered for beyond design situation. The participation to the CASH program is open to experts from consulting firms, research organizations, nuclear power plant owners, regulatory authorities, and in general to all those who perform computational prediction of experimentally tested and real structures.