DNV DNV CLASSIFICATION NOTES 20.1 PDF

The purpose of this Classification Note (CN) is to provide DNV's clients and surveyors with guidelines on minimum contents of the stability documentation required in connection with stability approval of ships.

The information in this CN is made to suit various DN V stability rules and common IMO and IACS standards in those cases where DNV is authorized to conduct statutory stability approvals. This CN is not intended to cover statutory documentation requirements that may be in excess of those standards. One should therefore refer to the rules and regulations in question to verify the applicable information for the ship in question.

While thi.-1 Classification Note has been written with application to new buildings in mind it should also be used as far as practicable whenever all or parts of stability documentation for existing ships is to be replaced.

This CN is not a substitute for the rules or regulations, but a means to help implementing them.

DNV stability rules allow that the class requirements may be considered complied with in some cases where a national authority has carried out the approval. In t11esc cases it is nevertheless recommended that the contents of this CN be implemented in that documentation as far as practicable.

DNV may accept layouts of stability documentation other than those presented in this CN, provided the basic contents are included.

According Society's rules loading computer systems (LCS) arc not accepted as an alternative to printed stability documentation. The documentation requirements for such systems are not within the scope of this CN. For information on approval and certification or LCS software please see CN 21.1.