Nippon Kaiji Kyokai, also known as Class NK, is a recognized marine surveyor with headquarters in Oslo. The organization aims to ensure maritime safety and protect the marine environment. Class NK offers services in the classification of ships and offshore installations, as well as inspections and certifications necessary to comply with international standards.
With a long history in the maritime industry, Class NK has developed a comprehensive system for the assessment of vessels and maritime structures. This includes evaluation of design, construction and operation, to ensure that they meet strict requirements for safety and environmental protection. The organization collaborates with various actors in the industry to promote best practice and innovation in maritime technology.