ClassNK amends Rules and Guidance

30 June 2016, (Tokyo) – Leading classification society ClassNK has amended its Rules and Guidance for the Survey and Construction of Steel Ships in response to the latest industry developments, including amendments made to the International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC Code).

IMO decided to carry out the first full review of the IGC Code to reflect the latest technological advancements and increasing ship size. Amendments to the Code were adopted as resolution MSC.370 (93) at the 93rd session of the IMO Maritime Safety Committee (MSC 93) held in May 2014.

ClassNK has amended its Rules and Guidance based on resolution MSC.370 (93) which will apply to ships carrying liquefied gases in bulk whose keels are laid, or which are at a similar stage of construction on or after 1 July 2016.

In addition to the aforementioned amendments related to the IGC Code, amendments have also been made to requirements related to the following:
• Non-destructive Testing for Machinery Installations
• Application Forms for the Approval and Type Approval of Materials and Equipment for Marine Use
• Portable Atmosphere Testing Instruments for Enclosed Spaces, etc.
• Approval of Diesel Engines
ClassNK Rules and Guidance can be viewed online by registered ClassNK “My Page” users. Registration for “My Page” is easy and free. Just go to the ClassNK website at and click on “My Page Login”.

For more information on this topic please contact:

ClassNK Rule Development Division
Tel: +81-3-5226-2171