.	Nuclear Safety
•	Challenges and risks
•	Operation objectives
•	Definition of safety
•	Defense in depth
•	Three safety functions
•	Development of safety
.	Download
•	All chapter
•	Summary

This tutorial contains 6 chapters and 6 appendices. Chapters are divided into sections and the sections are further divided into topics.

The menu on the left side provides a quick access to the chapters and appendices of the tutorial.

The menu on the right side presents the sections of a chapter and allows you to download the whole chapter or only a summary of the chapter.

Two bars, located at the top of each page, indicate your location within the tutorial. The dark blue bar indicates the chapter title. A light blue bar indicates the section.

Moving between pages

Several sections contain multiple topics on separate pages. You can move between topics by using the next button at the end of a page. To move from one section to another use the menu on the right side of the page.