Introduction

The scope of Classification requires that specified materials, components and systems intended for vessels and offshore units are certified according to the classification rules.

This part of the Classification scope is defined as the CMC (Certification of Materials and Components) services.

The certification will normally include both

— approval of design, and

— survey during production and/or of the final product

Type Approval is a procedure for approval of the design of materials, products and systems and may be used as an alternative to design approval “case by case”, see Standard for Certification

The Type Approval procedure should normally be used for approval of standard design of product produced in series.

For most products and systems Type Approval is a voluntary alternative for approval of design. However, for certain products and systems as defined in the applicable chapters of the DNV Rules, Type Approval is a mandatory procedure for design approval.