Going back to the old Articles or rule of the Road, which originally (1950) consisted of 32, but were altered and added on twice to my knowledge over subsequent years. The preliminary to rule 1 begins ...These rules shall be followed by all vessels and seaplanes upon the high seas and in all waters contained therein navigable by seagoing vessels.....Blah Blah Blah. I dont think there is any ref. to ships in the 32 Rules then, everything refers to a vessel. Saying that someone probably can remember or have a copy of same and will prove me wrong. Cheers John Sabourn