The Training Course organized in the frame of the FIRST-Nuclides project was held in Karlsruhe (Germany) on 9-10th of July 2013. The course was attended by 12 participants from different beneficiary, EUG and AG institutions. The main objective of the workshop was to give an insight of different topics related with the spent fuel behavior. The course was divided into lecture sessions and laboratory visits (KIT/INE and JRC-ITU facilities). The attendees give a global punctuation of 4.7 over 5 to this course.