Allships

Keep clear, pass on vessels portside.

Vessel with obstruction over its starboard side.

Vessel engaged in dredging. Restricted in ability to manoeuver. Obstacle on its starboard side. Pass on its portside.

International Regulations for Preventing Collisions at Sea apply to all vessels upon the high seas and in all waters connected therewith navigable by seagoing vessels. More information about International Regulations for Preventing Collisions at Sea