This TECDOC offers practical guidance on implementing a graded approach to the Systematic Approach to Training (SAT) for personnel at nuclear facilities. A graded approach to SAT benefits nuclear facilities by raising the quality and effectiveness of training, which in turn makes a significant contribution to safety and performance. This TECDOC is intended for managers and specialists associated with training and personnel in nuclear facilities and regulatory organizations, as a supplement to IAEA Nuclear Energy Series No. NG-T-2.8, Systematic Approach to Training for Nuclear Facility Personnel: Processes, Methodology and Practices.