Question 224 Rules of the Road

The correct answer is C) Neither vessel is the stand-on vessel. According to the International Regulations for Preventing Collisions at Sea (COLREGS), when two vessels are crossing in fog and not in sight of one another, neither vessel is the stand-on vessel. In this situation, both vessels must take early and substantial action to avoid collision, as outlined in Rule 19 of the COLREGS. There is no defined "stand-on" vessel when the vessels are not in sight of one another, as the rule requires both vessels to take appropriate action to avoid a collision. The other options are incorrect because they do not align with the COLREGS requirements for this specific situation. The stand-on vessel concept only applies when the vessels are in sight of one another.