- it is a pre-requisite for chartering any form of boat abroad.The ICC is issued by the RYA after a practical and oral examination covering basic navigation, seamanship, and handling. It is very useful for skippers cruising in foreign waters and in particular if you are skippering a foreign-flagged vessel. Port Police particulary in Eastern Europe expect to see your ICC and it is probably not worth arguing over the ins and outs of possessing it.
The ICC assesment criteria can be found on the RYA website here: http://www.rya.org.uk/SiteCollectionDocuments/cruising/Web%20Documents/Boating%20Abroad/ICC%20Form.pdf