The Collision Regulations stipulate that in all pleasure craft and vessels, someone must maintain a proper lookout, at all times, for other vessels or pleasure crafts in order to prevent a collision between two or more pleasure crafts. At all times the pleasure craft’s operator must have a clear view of the waters that he/she is navigating on. It is up to the operator of a pleasure craft to know and apply the International Regulations for preventing collisions at sea, and the Canadian modifications upon the high seas, and in all waters connected therein, which are navigable by vessels.
Following a collision between two boats, make certain everyone is accounted for and check for injuries. Ensure that passengers and crew members are wearing a PFD. The Small Vessel Regulations require that certain vessels carry an emergency kit. Keep the proper equipment and supplies onboard to stop hull leaks and make minor on-water repairs.
A vessel overtaking an other vessel shall keep out of the way of the vessel being overtaken. When a vessel is in any doubt as to whether she is overtaking another, she shall assume that this is the case and act accordingly.
Any alteration of course and/or speed to avoid collision must be important (noticable) enough to be easily seen by another vessel observing by sight or radar; a succession of small changes of course and/or speed, should be avoided.
Action taken to avoid collision with another vessel shall be to result in passing at a safe distance. This action will be taken in such a manner to be effective and safe, until the time that the other vessel is finally past and clear.
If necessary, a vessel shall reduce her speed to avoid collision with an other vessel.
When two power-driven vessels are crossing so as to involve risk of collision, the vessel which has the other on her own starboard side shall keep out of the way and shall, if such are the circumstances, avoid crossing ahead of the other vessel.
The operator of a powerboat should maintain his course when being approached on his port side by another powerboat.
Every give-way vessel should keep out of the way of a stand-on vessel, so far as is possible, take early and substantial action to keep well clear.
The Stand-on vessel should maintain its course and speed. The give-away vessel, may however take action to avoid collision if it is clear that the vessel which should be keeping out of the way is not taking appropriate action.
Risk of Collision, states that every vessel shall use all available means to determine if risk of collision exists; if there is any doubt, assume that it does exist. Risk of collision shall be deemed to exist if the compass bearing from your vessel to an approaching vessel does not change. Constant bearing decreasing range (CBDR) is the term we use to describe this situation. Collision risk may sometimes exist even when appreciable bearing change is evident, particularly when approaching a very large vessel or a vessel towing or when approaching a vessel at very close ranges