RULE 4 - COLREGs for AUTONOMOUS VESSELS
COLREGS - The Rules are divided into five parts A-E - General Rules (A), Steering and Sailing (B), Lights and Shapes (C), Sound and Light (D) and Exemptions (E).
In other words, if there is zero visibility and the vessel does not have the instruments to proceed safely, the speed of the water craft should be reduced and course corrections made, until adequate vision is restored for safe operation of the vessel.
may have the advantage here, where they would typically have superior
instruments and access to geodata,
and other information that older ships with human operators may not be
Rule 1 states that the rules apply to all vessels
on the high seas and connected waters.
risk assumptions shall not be made on scanty (radar) information.
Part C - LIGHTS & SHAPES (Rules 20-31)
Part D - SOUND AND LIGHT SIGNALS - DEFINITIONS (Rules 32-37)
Part E - EXEMPTIONS - Rule 38
Part F - Convention compliance verification provisions Rules 39 - 41
Annex I - Positioning and technical details of lights and shapes
Annex II - Additional signals for fishing vessels fishing in close proximity
International Maritime Organization (IMO)
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