This report is a review of the current state of the art of technologies used for the decommissioning of nuclear facilities, including technologies for decontamination and dismantling, waste management and remote systems. It summarizes practical experience gained over the last 10 to 15 years in the field of decommissioning. Contents: 1. Introduction; 2. Purpose and scope; 3. Structure; 4. Factors to be considered in the selection and implementation of a decommissioning strategy; 5. Safety and radiation protection; 6. Methods and technologies for decommissioning; 7. General lessons learned; 8. Conclusions; Appendix.