Press Release

ClassNK releases amendments to class rules

29 June 2018

Tokyo – Leading classification society ClassNK has announced that it released amendments to its Rules and Guidance for the Survey and Construction of Steel Ships on 29 June 2018.

ClassNK is constantly revising its Rules and Guidance in order to reflect the latest results from relevant research and development projects, feedback from damage investigations, requests from the industry as well as changes made to relevant international conventions, IACS unified requirements (UR), national regulations, etc.

More specifically, some of the requirements amended this time are as follows:

  • Amendment related to the Class Notations with respect to Structural Assessment based upon Direct Load Analysis (to incorporate research and development results)
  • Amendment related to the Anchor Windlass Design and Testing (to incorporate feedback from damage investigations)
  • Amendment related to the Pressure Relief Systems for Gas-fuelled Engines (in response to industry requests, etc.)
  • Amendment related to the Foam-type Extinguishers for Boilers (in response to changes in international conventions, etc.)
  • Amendment related to the Heat Treatment Definitions, Surface Quality and Repair of Defects for Rolled Steels (in response to changes in IACS Unified Requirements, etc.)

The PDF files of ClassNK Rules and Guidance are available free of charge via ClassNK’s website for those who have registered for the ClassNK “My Page” service. To register for the “My Page” service free of charge, go to ClassNK’s website and click on the “My Page Login” button.

For more information on this topic, please contact:
ClassNK Rule Development and ICT Division
Tel: +81-3-5226-2182

ClassNK - EOD