To provide to the European Commission (DG DEVCO) and the Beneficiary/End-User with the following assessments with a detailed review of the support provided to both the regulatory authority (SNRIU) and its TSO (SSTC) under INSC I and II; This is addressed by an inventory, analysis and classification in terms of types of activities, nuclear safety relevance, resources allocated to the activities, and their impact on the nuclear safety.