🔍 Key Concepts

• GMDSS (Global Maritime Distress and Safety System) purpose and who it was designed to cover • The basic SOLAS applicability rule (what kind of ships, what GT, and what trade) • Difference between all vessels vs. SOLAS Convention ships vs. small coastal vessels

💭 Think About

• Which types of vessels does SOLAS generally apply to in terms of gross tonnage and international voyages? • Does GMDSS apply to every boat with a radio, or only to certain categories of commercial ships under SOLAS? • Look at each option and ask: is this describing all ships, only SOLAS ships, or small non‑SOLAS coastal vessels?

✅ Before You Answer

• Verify which ships SOLAS Chapter IV (Radio Communications) applies to, especially the 300 GT and above on international voyages point • Check whether GMDSS was designed mainly for SOLAS‑class seagoing ships or for all small coastal vessels • Eliminate any options that clearly include vessels that are not normally covered by SOLAS (like small local/coastal craft under 300 GT)