Navigation rules can be overlooked when the skipper of a vessel judges that the risk of collision is reduced to an acceptable level and that following the rules would cause greater risk than not following them. This can happen when the vessels are well aware of each other's location, speed, and course and have adequate sea room. In this case the skipper can decide to deviate from the rule of the road.
Navigation rules can also be overlooked when it is not practical to follow them due to the size or movement of the vessel. For example, very large vessels may not be able to turn quickly enough to avoid a collision or may take up too much space in a narrow channel. In these cases, it may be necessary to deviate from the navigation rules in order to safely navigate the waters.
Finally, navigation rules can be overlooked when they conflict with other laws or regulations. For example, when sailing in the presence of whales or other endangered species, the skipper may be required to slow down or change course to ensure the safety of the wildlife. In this case, the skipper may decide to overlook the navigation rules in order to comply with the regulations.
Overall, navigation rules can be overlooked when the skipper feels that the risk of collision is minimized and that following the rules would create greater risk than not following them. However, the skipper should always use their judgement and carefully consider the situation before deviating from the navigation rules.
If necessary to avoid immediate danger
Well the short answer is... navrules can never be "overlooked". You may make a departure from the rules if necessary. Here is what the COLREGS 1972 Rules have to say.
International and Inland
Rule 2
Responsibility(a) Nothing in the these rules shall exonerate any vessel, the owner, master or crew thereof, from the consequences of any neglect to comply with these rules or the neglect of any precaution which may be required by the ordinary practice of seaman, or by the special circumstances of the case.
(b) in construing and complying with these rules due regard shall be had to all dangers of navigation and collision and to any circumstances, including any limitation of the vessel involved, which may make departure from these rules necessary to avoid immediate danger.
Basically this is a catch all that says EVERY person is responsible at all times to be on the lookout.
WhNASBLA Standard: 4.3
Resource: Navigation Rules 2
Course Location: p. 9
when can a Navigation Rule be overlooked?
to avoid immediate danger
The meaning of setting the prime location on a navigation device is setting the navigation system to a starting point. A navigation system such as GPS uses satellite to determine prime locations.
hit the navigation button and program it
From portable and in-dash navigation systems to marine, handheld and fitness GPS navigation
Global Positioning System (GPS) uses the signals from geosynchronous satellites to provide accurate position information for navigation. As such utilizing GPS for navigation amounts to utilizing satellite navigation ("sat nav"). Note that while GPS, which was developed by the US government is the most widely used satellite navigation system, Russia also has the Global Navigation Satellite System (GLONASS) deployed which can provide essentially the same satellite navigation capabilities - and can be used in along with GPS to get faster and more accurate position information. The EU, Japan, China, and India are also working to deploy a satellite navigation systems.
to avoid immediate danger
It is a rule - so never
It is a rule - so never
It is a rule - so never
It is a rule - so never
One of the main intentions of the Navigation Acts was to insulate British shipping companies from competition with the Dutch. Enforcement was often overlooked because the acts actually cost the British money due to stifling cash flow and trade.
When absolutely necessary to avoid a collision.
A whistle or Horn
To keep boats from running in to each other, hurting people and damaging boats.
Arabia
P. D Poirier has written: 'International - inland rules of the road' -- subject(s): Safety measures, Rule of the road at sea, Navigation, Inland navigation
Overlooked - album - was created in 2002.