Common Structural Rules

The merger of DNV means that we can bring greater technological expertise, experience and a broader range of classification services to our industry partners. As a leading classification society, we have over the years accumulated unique competence in both the tanker and dry bulk segments which we want to share with the maritime industry.

Global network of experts directly available for your support

DNV’s global presence is complemented by our local networks – giving you a point of contact in your region who can rapidly respond with a targeted solution to best meet your individual needs. We have expanded our activity world-wide to assist clients in implementing the CSR BC & OT. Central in these activities is the DNV networks of Ship Type Experts. Separate networks have been established for tankers and for bulk carriers, where the members represent DNV’s technical leaders for their respective ship types. The ship type experts combine detailed in depth technical knowledge with a broader experience.

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Pre-contract services

Regulatory and third-party requirements are constantly developing, resulting in the emergence of the term «future proofing» of bulk carrier or tanker newbuildings. This implies that, for an owner, it is essential that the newbuilding specifications cover regulatory and third-party requirements that enter into force in the course of the building period and in the foreseeable future after delivery. DNV can assist owners with the above through reviews of technical specifications, as part of our free of charge pre-contract service.

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Software - Nauticus Hull

The Common Structural Rules for Bulk Carriers and Oil Tankers (CSR BC & OT) are based on physics’ first principles, instead of on empirically based models. This will provide a better answer to the conditions the ship will experience in reality. However, it also means a shift towards more computerisation of the rule formulations and structural assessment and good support from rule calculation tools will be essential in the structural design process. As a response to this, DNV has invested heavily into its rule calculation tools to provide efficient support for the new rules. Nauticus Hull is updated to support the latest version of the CSR BC & OT rules for prescriptive and Finite Element Method calculations.

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Training courses

DNV has activities world-wide to assist clients in implementing the CSR BC & OT. An extensive training program has been initiated for all approval units enabling our staff to be well prepared to provide efficient and local support to the industry. We have also been running workshops and training for yards, designers and owners, and together we have performed extensive consequence assessment of existing designs. We want to ensure a smooth transition to CSR BC & OT for our clients.

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