🔍 Key Concepts

• MODU (Mobile Offshore Drilling Unit) construction and classification records • Difference between regulatory certificates (like a Certificate of Inspection) and technical design/construction documents • Where detailed information on materials, steels, and structural strength is normally kept on file

💭 Think About

• Ask yourself: which document is most likely to contain detailed technical data about materials (types and strengths of steel), rather than just high‑level vessel information? • Consider which option is usually issued by the Coast Guard versus which are prepared and retained by the shipyard or designer. • Think about which document would need to be referenced years later to verify what materials were actually used in the MODU’s structure.

✅ Before You Answer

• Identify which choice is a regulatory certificate that would NOT normally list detailed material specs. • Identify which choice is specifically tied to design and construction details, not just arrangement drawings. • Ask: which document would classification societies and surveyors use to confirm material and strength compliance during and after construction?