# classed assigned a class. Class, when referring to vessels of commerce, means the character assigned to a vessel, depending on the design of the vessel, the quality of the materials employed, and the outfit and equipment, all of which should be up to the minimum standards required for a particular type of vessel. To ensure that the condition and seaworthiness of classed vessels are maintained they are examined periodically and upon the result of such survey depends the continuance of the class.