The rules that follow cover most of the situations you will encounter as a pleasure craft operator. However, be aware that there are exceptions to the rules. For example, if you approach a vessel that has less manoeuvrability than your vessel, the other vessel will usually be the stand-on vessel.
Every operator is responsible for avoiding a collision. In complying with the navigation rules, operators must consider all dangers of navigation; risk of collisions; and any special conditions, including the limitations of the boats involved. These considerations may make a departure from the navigation rules necessary to avoid immediate danger.