1. Objectives of nuclear safety 2. Short history of nuclear safety technology 3. Inventory and localisation of radioactive products in the plant 4. Safety systems and their functions 5. Classification of accidents and description of some examples: Classification; Design basis accidents; Beyond design basis accidents 6. Severe accidents 7. Dispersion of radioactive releases 8. Health consequences of releases 9. The general approach to the safety of the plant and of the site 10. Defence in depth 11. Quality assurance 12. Safety analysis: Deterministic safety analysis; Probabilistic safety analysis 13. Safety analysis review 14. Classification of plant components 15. Notes on some plant components: The reactor pressure vessel; Piping; Valves; Containers 16. Resistance of plants to earthquakes 17. Resistance of plants to tornadoes 18. Resistance to external impacts 19. Nuclear safety criteria: General characteristics; The U.S. General design criteria; IAEA criteria; EUR criteria; Other sets of general design criteria 20. Nuclear safety research 21. Operating experience: Principal sources; Some notable events; The International Nuclear Event Scale 22. Underground location of nuclear power plants 23. Underground nuclear tests 24. Effects of nuclear explosions 25. Radioactive waste 26. Safety of fusion reactors 27. Safety of specific plants and of other activities 28. Nuclear plants on satellites 29. Erroneous beliefs in nuclear safety 30. When can we say that a particular plant is safe? 31. The limits of nuclear safety: the residual risk