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A ship classification society or ship classification organisation is a non-governmental organization that establishes and maintains technical standards for the construction and operation of ships and offshore structures. Classification societies certify that the construction of a vessel complies with relevant standards and carry out regular ...
Service offered by ClassNK include ship classification surveys, statutory surveys, and certification on behalf of Flag States based on international conventions, codes, national statutes, and its own rules and regulations.
The International Association of Classification Societies (IACS) is a technically based non-governmental organization that currently consists of twelve member marine classification societies. More than 90% of the world's cargo-carrying ships’ tonnage is covered by the classification standards set by member societies of IACS. [1]
A ship that passes a classification society's survey for a given class of registration is said to be "in class". [ citation needed ] A survey or partial survey is often made on a vessel for a potential purchaser, to ensure that the condition is as claimed by the owner.
An Electronic Navigational Chart (ENC) is a digital representation of a real-world geographical area for the purpose of Marine navigation.Real-world objects and areas of navigational significance, or to a lesser degree - informational significance, are portrayed through Raster facsimiles of traditional paper charts; or more commonly through vector images, which are able to scale their relative ...
Used mainly to determine the minimum water depth for safe passage of a vessel and to calculate the vessel's displacement (obtained from ship's stability tables) so as to determine the mass of cargo on board. Draft, Air – Air Draft/Draught is the distance from the water line to the highest point on a ship (including antennas) while it is ...
The Society printed the first Register of Ships in 1764 in order to give both underwriters and merchants an idea of the condition of the vessels they insured and chartered: ship hulls were graded by a lettered scale (A being the best), and ship's fittings (masts, rigging, and other equipment) were graded by number (1 being the best).
Ships are marked "IR" but this article claims "IRS." Ships are marked "NK" but the article has "NKK" in the table and "NK" in the external links list. Ships are marked "NV" but this article claims "DNV." Ships are marked "RI" but this article claims "RINA." The list of "External links" should be merged into "List of classification societies."