🔍 Key Concepts

• Special survey interval in SOLAS/class rules (often linked to a 5‑year cycle for class renewal) • Relationship between last special survey date and the due date for the next special survey • Difference between annual/intermediate surveys and special (periodical) surveys

💭 Think About

• Think about the typical full class or statutory survey cycle length (in years) for seagoing vessels. • If the complete cycle is X years, and the last special survey was 2 years ago, how many years are left in that cycle? • Which option best matches the remaining time until the end of that full special‑survey cycle, starting from the last special survey date?

✅ Before You Answer

• Confirm the total length of the special survey cycle (in years) used in most SOLAS/class requirements. • Make sure you are counting from the date of the last special survey, not from the vessel’s build date. • Check that the time you calculate as ‘remaining’ matches one of the answer options exactly (1, 2, 3, or 5 years from now).