No such certification for engineers (the designer) exists in the USA, and I doubt that it exists oversees. This applies to Section VIII, Div 1, B31.1 and B31.3. B31.3 recently added provisions for qualifications for the designer (para. 301.1) but this calls for a combination of education and experience (including an option for a PE), and is not based on any certification program.
In the USA, PE is professional engineer which is a licensing program not specifically associated with the codes.
A licensed PE is required by code to be involved in Section VIII, Div 2 vessel design (User's Design Spec and Manufacturer's Design Report).