The present report outlines the results of new contributes to the validation effort of the two activation code packages ANITA-2000 and EASY 2003, that have been done in the frame of the EFDA Task No. TW4-TSS-SEA5.5: Three main validation exercises have been carried on and they are deeply analysed and discussed in the report: A. Comparison between decay heat measurements performed at FNS-JAERI and ANITA-2000/FISPACT-2003 estimates based on EAF-2003 data, for fusion relevant materials. B. Comparison between photon and electron decay heat measurements from FNG ENEA-Frascati and ANITA-2000/FISPACT-2003 results, based on EAF-2003 data, for fusion relevant materials. C. Comparison of experimental data (radioactivity content and dose rates) coming from the cemented containers of the ENEA-Trisaia SIRTE waste storage with ANITA-2000 (stand-alone decay version ANITA-2000-D) calculation. The comparison of calculation with experiments indicate generally a good agreement representing a further step in the ANITA-2000 (and, more generally, of the SCALENEA-1 calculation sequence) validation process.