🔍 Key Concepts

• MARPOL Annex I requirements for the International Oil Pollution Prevention (IOPP) Certificate • How long statutory certificates (like Safety Construction, Safety Equipment, IOPP) are usually valid on seagoing ships • Any special provisions for MODUs (Mobile Offshore Drilling Units) in U.S. or international regulations

💭 Think About

• Think about how long most pollution‑prevention and SOLAS safety certificates are normally issued for on ocean‑going vessels, and compare that to the answer choices given. • Consider whether a MODU would typically have shorter or similar certificate validity compared to other large international vessels. • Ask yourself: does the regulation talk about a specific number of years for IOPP validity, or does it match the general pattern for other major international convention certificates?

✅ Before You Answer

• Check MARPOL Annex I, Regulation 6 or 7 (Certificate and duration) for the stated validity period of the IOPP Certificate. • Confirm whether MODUs follow the same IOPP validity rules as other ships, or if there is an exception stated in 33 CFR or 46 CFR for MODUs. • Verify that the chosen number of years matches the typical full-term international certificate duration, not an interim or short-term certificate.