🔍 Key Concepts

• Reporting marine casualties and incidents involving aids to navigation • The role of the Captain of the Port (COTP) vs the Officer-in-Charge, Marine Inspection (OCMI) • Special reporting duties of MODUs (Mobile Offshore Drilling Units) under U.S. regulations

💭 Think About

• Which authority is specifically responsible for marine safety and casualty investigations for commercial vessels and MODUs in a given zone? • Who has legal responsibility for aids to navigation and damage reporting: a charting/hydrographic office, or a local Coast Guard operational authority? • Between the listed Coast Guard authorities, which one is tied most closely to marine inspections, vessel casualties, and offshore units rather than general port operations?

✅ Before You Answer

• Identify which listed options are actually part of the U.S. Coast Guard’s marine safety organization, not just charting or oceanographic services. • Ask yourself: if a MODU has a collision, who would conduct the marine casualty investigation under 46 CFR, and who would handle paperwork like marine inspection and certification? • Verify which office (from the choices) is explicitly named in casualty reporting requirements for OCS units and MODUs in the current regulations.