To class a ship implies in re-calculating its design and surveying its construction accordingly to Industrial Quality Rules published by RBNA and Safety Regulation published by IMO.

With Rules for open seas and inland waterway, the Classification Society has also special publications for offshore units, wood vessels, high speed crafts and other segments.

At the end of the process of classification, the vessel receives a group of class and statutory certificates recognized by governments, insurance companies and end-users.