Class notations are assigned to vessels in order to determine applicable rule requirements for assignment and retention of class.
All ships being assigned class with DNV will be given a class notation consisting of a construction symbol, a main character of class, service area restriction notations and main ship type notations, as applicable. Class notations cover mandatory and optional requirements. Class notations may be given a supplemental symbol. The supplement is used to identify special requirements or limitations related to the class notation.
All class notations are listed and categorised in the DNV Rules for Classification of Ships, part 1, chapter 2 and the DNV Rules for High Speed, Light Craft and Naval Surface Craft, part 1, chapter 1. To purchase the Rules, please go to our webshop.
Examples of typical class notations:
|Example 1||Example 2||Example 3|
|Mandatory class notations ||Construction symbol|
|Main character of class||1A1||1A1||1A1|
|Main ship types||Bulk Carrier ESP||Tanker for Oil ESP|
|Mandatory survey scheme related to a survey scheme for bulk and ore carriers and tankers||ESP||ESP|
|Additional class notations for main ship types||ES(S) CSR BC-A Holds 2,4,6 may be empty||CSR|
|Optional class notations ||Related to ship types||Supply Vessel|
|Related to cargo||LFL|
|Related to service area||ICE-1A|
|Related to survey scheme||TMON||TMON||CLEAN|
|Related to equipment and systems||E0|
|DEICE E0 F-AM RPS NAUT-AW HELDK-SH|
|Related to design features||PLUS||SF|
|NAUTICUS notations||NAUTICUS (Newbuilding)|
|*) For certain types of ships, the NAUTICUS (Newbuilding) notation is mandatory and part of main class.|
Please use the left menu for a descripton of each of our class notations. An extensive descriptions of each notation will be added shortly.