The current status on the extent of correlation between full-scale test results and the dummy responses obtained by CTP test is herein reported. It is based on the cooperative operations of ACEA, MVMA, and JAMA. First, an outline of the course of the JAMA/JARI research which is all aimed at improving the correlation, i.e., a history of the improvement of the correlation of the dummy responses in full-scale tests and those in CTP tests, is introduced. Next, a description is given of the differences in the two CC-CTP systems and software developed by ACEA and JAMA/JARI, and of the extent of correlation between the results by CC-CTP and those by full-scale tests. Both methods of CC-CTP have been judged as already showing high correlation in the field of computer simulation.