Here are the 2017 rules of ITIC. They are designed to be used as an electronic document and if you are viewing the interactive pdf and you click on a link (blue text and underlined) you can go back to your previous position in the document in two ways*:
Alt / left arrow will take you back to the previous view
Right click when your cursor is on the tool banner and click Show Page Navigation Tools and tick Previous View the back button will appear in the tool bar
*Please note: in order to be able to navigate ITIC's Rules 2017 in this manner you must have downloaded a copy of the Rules.