Classification is like quality certification i.e. certification about the ship-owner having followed a particular standard of construction and maintenance. When ship is ‘classed” with a particular classification society it has to follow their rules for construction and maintenance for the ship. The classification certificate is the document confirming that a sip has been built according to the rules and standards of the relevant classification society and that it has structural and mechanical fitness for its intend service. Such certification is vital for the design, construction and operation of ships, and affects shipbuilding, shipping and marine insurance and banking.