🔍 Key Concepts

• 46 CFR Part 4 – Marine Casualties and Investigations (who must report) • Difference between people with overall legal responsibility vs those with operational/technical roles on a unit • What a mobile offshore drilling unit (MODU) is and who has ultimate control over it

💭 Think About

• Which of these roles typically holds legal and financial responsibility for the MODU, not just day‑to‑day technical duties? • Who would the Coast Guard expect to be accountable for ensuring that reporting actually happens, regardless of who discovers the casualty? • Among these choices, who has authority over the others and is most likely named in regulations as the responsible party?

✅ Before You Answer

• Check 46 CFR Part 4 to see which party is listed as responsible for reporting casualties. • Verify which of the listed roles normally has ownership or ultimate control of the MODU, not just a job on board. • Confirm that a pilot, engineer, or surveyor are usually hired/assigned roles, while one choice reflects the entity with long‑term responsibility for the unit.