Posted by Tom Napier on June 23, 2013 at 11:36:40 user Didymus.
In Reply to: Re: Right / Left posted by Peter Roche on June 23, 2013 at 10:41:11:
The 1972 COLREGS are the latest revision of codified rules that date back to the 1840s and the introduction of steamships. Rules that would apply to sailing ships, such as "pass port-to-port" probably date back another couple of centuries.