DNV DNV-RU-SHIPS PART 7 CHAPTER 4 PDF

These rules include the fleet in service retention requirements for additional class notations.

They apply in addition to the retention requirements for main class, which can be found in Ch.2.

For class systematics for fleet in service, including roles and responsibilities and alternative retention schemes, see Ch.1.

Retention requirements for other class notations can be found in:

— Ch.3 for vessel type notations

— Ch.5 for in-operation class notations.

Conditions for obtaining additional class notations can be found in Pt.6.