Your vessel is entering dry dock for its 5-year special survey. What structural and mechanical items below the waterline will the classification society surveyors examine?

A. The classification society only examines stability documentation at a 5-year survey — hull plating inspection is done by the flag state Administration independently.

B. A 5-year docking survey only covers the exterior paint and antifouling system. Structural surveys are conducted separately by a hull inspector not associated with the classification society.

C. SPECIAL SURVEY (5-year class survey) — below waterline items: (1) HULL PLATING: thickness gauging using ultrasonic measurement at specified locations; compare with original thickness and allowable diminution (maximum wastage before renewal required); wastage patterns indicate corrosion hotspots; (2) FRAMES AND STRUCTURAL MEMBERS: inspection of internal frames, floors, longitudinals — especially areas prone to pitting and corrosion (cargo hold frames, double bottom tank top); (3) RUDDER: inspection of pintle and gudgeon bearing clearances, rudder stock wear, blade thickness, welds; (4) PROPELLER: blade condition (erosion, cavitation damage, cracks, bent blades); shaft withdrawal for bearing inspection and seal renewal; propeller boss and cone; (5) BOW THRUSTER (if fitted): blade condition, seal integrity; (6) SEA CHESTS AND SUCTION FILTERS: inspect for corrosion, cathodic protection anode condition; (7) CATHODIC PROTECTION ANODES: zinc or aluminium sacrificial anodes on the hull and rudder — check consumption, renew if more than 50-75% consumed; (8) STERN TUBE: renewal of packing or mechanical seal; bearing clearance measurement; (9) SHELL PLATING: general visual inspection plus UT gauging of selected plates; (10) BILGE KEEL ATTACHMENT WELDS: stress-prone area.

D. Below-waterline surveys only examine machinery items (propeller, rudder). Hull plating thickness is checked at a 10-year major overhaul, not at 5-year intervals.

A. The SMC is not required on board — only the Document of Compliance (DOC) held by the company is mandatory. PSC cannot detain the vessel on this basis alone.

B. An expired SMC can be sailed on for 3 months while awaiting a new survey, provided the master informs the flag state. There is no PSC ground for detention during this grace period.

C. SAFETY MANAGEMENT CERTIFICATE (SMC): issued under SOLAS IX / ISM Code. VALIDITY: maximum 5 years, subject to intermediate verification (audit) at intervals between 2.5 and 3.5 years after initial or renewal audit. Renewal process: the SMC must be renewed before expiry by a flag state or Recognised Organisation (RO) verification audit; IF EXPIRED: an expired SMC means the vessel is operating WITHOUT a valid ISM certification — this is a fundamental SOLAS breach. PSC consequences: (1) IMMEDIATE DETENTION: PSC will detain the vessel — an expired SMC is a ground for detention under SOLAS IX; (2) FLAG STATE NOTIFICATION: PSC notifies the flag state Administration; (3) CRIMINAL LIABILITY: operating a SOLAS vessel without valid certificates is an offence under the Merchant Shipping Act (UK flag state); (4) WHAT SHOULD HAVE HAPPENED: the ISM audit should have been arranged before expiry; the master and DPA are both responsible for monitoring certificate validity; a diary system tracking all certificate expiry dates is an ISM requirement. ROOT CAUSE: failure of the company's certificate management system — itself an ISM non-conformity.

D. The SMC is automatically renewed when the DOC is renewed. An expired SMC therefore simply means the paperwork has not been updated — the underlying certification remains valid.

A. The CSSEC is only issued to general cargo ships. Tankers, bulk carriers, and container ships hold separate vessel-type specific certificates with different survey requirements.

B. The CSSEC covers only the hull structure and stability. Safety equipment (lifeboats, firefighting) is covered by a separate Cargo Ship Safety Construction Certificate.

C. No annual survey is required for the CSSEC — it is issued for 5 years and renewed at the 5-year anniversary. Only the load line certificate requires annual surveys.

D. CARGO SHIP SAFETY EQUIPMENT CERTIFICATE (CSSEC): issued under SOLAS I/12 for cargo ships of 500 GT and above. COVERS: (1) Life-saving appliances (LSA) — lifeboats, rescue boats, liferafts, immersion suits, lifejackets, line-throwing appliances, pyrotechnics; (2) Fire detection, fire extinguishing systems, and portable fire equipment; (3) Navigational equipment as required by SOLAS Chapter V (charts, echo sounder, gyro compass, magnetic compass, AIS, ARPA, etc.); (4) GMDSS radio equipment (though also covered by the Safety Radio Certificate); (5) Day signals (shapes). SURVEYS: (a) Initial survey before first issue; (b) ANNUAL survey (within 3 months each side of the anniversary date) to maintain validity; (c) PERIODIC survey (full survey) at intervals not exceeding 5 years; (d) ADDITIONAL surveys as required after significant repairs or modification. Annual survey focus: LSA equipment — lifejackets, immersion suits inspected, hydrostatic releases checked, EPIRB registration/battery expiry checked, pyrotechnics within date, lifeboat engine tested, falls and release gear tested.