There are bookmarks within each standard. The PDF file will open with the bookmarks in the left panel as well as in the text. If you prefer the MS word, save it and open it with MS Word go to the tool bar > view document map.If you don't use the document map with the Word files, the links (like a index at the beginning of the document) are at the top of the 1st page of each separate file. The links are only for those subsections within that particular file. To use the links in the word files hold down the Ctrl key while clicking the link with the mouse.