The Racing Rules of Sailing (RRS) are updated every 4 years, and most clubs and every racing sailor, coach, official and regatta organiser should own a copy of the Rule Book for ready reference.
The Sail Canada 2017-2020 Racing Rules of Sailing includes two main sections; the Rules that apply to all competitors, and the Appendices that apply only during particular kinds of racing.
The book contains World Sailing's 2017-2020 Racing Rules of Sailing with Sail Canada Prescriptions, and World Sailing's Change #'s 1, 2, & 3, issued October 20, 2016.
The Rules are revised and published by World Sailing, the international authority for the sport every four years following the Olympic Games. This edition becomes effective January 1, 2017.