What is the Builder's Certificate commonly referred to as?

The Builder's Certificate is commonly referred to as the Master Carpenter's Certificate. This designation emphasizes the qualifications and competencies of the builder in ensuring that the vessel's construction meets the necessary standards and specifications set by regulatory bodies. It signifies that the builder has the expertise to oversee the construction process, confirming that the materials used and the construction methods applied are in line with the design requirements and safety regulations.

The other terms listed, while they may refer to different types of certifications or documents related to construction and quality assurance, do not specifically capture the essence of the Builder's Certificate as it pertains to vessel construction. Each of those options relates to different aspects of construction compliance or quality assurance, but the Master Carpenter's Certificate is the specific term associated with the builder's role in the certification process of a vessel.