On setsail.com Steve Dashew mentions that there are some significant reasons to keep the boats length below 20 meters. One examples he gives are a pilot is required in certain areas of Alaska for foreign flagged boats. He also mentions in other areas you are required to stay in shipping lanes. I have done some searching and all I can find in the USA is the Alaska thing and the CG has some safety regs that change beyond 65 ft. I looked into registration in the Marshall Islands and they do have a 24 meter limit at which point there is a lot more qualification and bureaucracy involved. Can anyone give other examples of complications or bureaucracy that arise when you exceed 20 meter or more? I notice that all of Dashew's other boats are over 20 meters and there are tons of Nordhavns and others that are beyond 20 meters. Is there really any issue with going beyond 20 meters? I want to be able to do worldwide cruising but no European canals.