🔍 Key Concepts

• Captain of the Port (COTP) notification requirements in 33 CFR for vessels carrying certain dangerous cargoes • Difference between advance arrival notice (hours before entry) and hazardous condition reports • How special systems like AMVER/USMER** relate (or do not relate)** to COTP notification rules

💭 Think About

• Ask yourself: When a vessel is carrying a dangerous bulk cargo like anhydrous ammonia, does the COTP care only about schedule changes, or about the presence of that cargo itself? • Consider whether participation in systems like AMVER/USMER replaces, adds to, or is completely separate from COTP notification duties. • Think about what triggers a hazardous condition report versus what triggers a pre‑arrival notification requirement even when everything is normal.

✅ Before You Answer

• Check which options describe a time-based pre‑arrival notice versus an exception-only notice (e.g., only if there’s a problem). • Verify in 33 CFR whether certain dangerous cargoes in bulk require a specific minimum notice period before entering port, regardless of problems on board. • Confirm that hazardous condition reporting is one duty, and pre‑arrival notification for dangerous cargoes is another, and identify which duty is being asked about in the question.