 ClassNK is a non profitable non governmental organization dedicated to ensure the safety of life and property at sea, and the prevention of pollution of the marine environment.The principal work of the Society's expert technical staff is to undertake surveys to ensure that the rules which it has developed, are applied to both newly built and existing ships in order to ensure the safety of these vessels.The rules cover not only hull structures, but also safety equipment, cargo handling gear, engines, machinery, and electrical and electronic systems among others.