Surveys and certificates: where lifeboat work fits

Every SOLAS cargo ship of 500 gross tonnage or more carries a Safety Equipment Certificate (or a combined Safety Certificate). It is valid for up to five years, but it only stays valid if a surveyor visits once a year. That annual survey can happen in a six-month window: three months either side of the certificate’s “anniversary date”.

The lifeboat’s annual thorough examination is tied to those surveys. So in practice, the service firm’s annual visit is planned inside the same window, and the surveyor checks the firm’s report when they come.

The five-yearly work is different. The rule says “at least once every five years”, and there is no window to stretch it. If the date passes, the flag decides what happens next.

Get the dates right and the work feels routine. Get them wrong and a certificate can stop being valid while the ship is at sea.

The certificates that matter

A cargo ship’s life-saving appliances are covered by the Cargo Ship Safety Equipment Certificate, or by the combined Cargo Ship Safety Certificate. Under the Harmonized System of Survey and Certification (HSSC), any cargo ship certificate is valid for at most five years (A.1207(34) annex, 1.3.4). A passenger ship’s Passenger Ship Safety Certificate is valid for at most 12 months (1.3.5).

The rules for timing these surveys come from SOLAS chapter I, regulations 7 (passenger ships) and 8 (cargo ship safety equipment). The IMO’s own guide to doing them is the Survey Guidelines under the HSSC, 2025: resolution A.1207(34), adopted on 3 December 2025. It replaced A.1186(33).

The four survey types

The “anniversary date” is the day and month of each year that corresponds to the certificate’s expiry date (SOLAS I/2(n), 1988 Protocol). With an expiry date of 15 March, every annual window runs from 15 December to 15 June.

How lifeboat work links to the survey

SOLAS III/20.11 does not set its own calendar. It says launching appliances “shall be subjected to a thorough examination at the annual surveys required by regulations I/7 or I/8”. Release gear, davit-launched liferaft hooks and the boats themselves are tied to the same annual surveys (20.11.2 to 20.11.4). All of it must follow MSC.402(96) (20.11.5).

That is why the annual lifeboat service is planned inside the survey window. Some flags say so directly. As of October 2026, Panama requires annual performance tests and inspections of LSA to be done “according to the time window (+/- 3 months)” of the annual safety equipment survey. If they cannot be done in time, the RO must ask the flag to make the certificate conditional (Merchant Marine Circular MMC-258, §8.1, May 2026).

What the surveyor checks

The survey guidelines list what the surveyor looks at on the lifeboats. At every annual survey they include:

• examining each survival craft and its equipment, including the on-load release mechanism and hydrostatic lock ((EA) 1.2.2.20);
• checking that the falls have been inspected and renewed as necessary in the past five years ((EA) 1.2.2.22);
• lowering each lifeboat to the embarkation position and, if practicable, one craft to the water ((EA) 1.2.2.23);
• checking that the thorough examination, the winch brake test and the release gear servicing were done to MSC.402(96) ((EA) 1.2.2.24);
• testing that each lifeboat engine starts and runs ahead and astern ((EA) 1.2.2.28).

The surveyor also reads the records. They check the log-book for the last drill, the last time the lifeboat equipment was found complete, and when each boat was swung out and lowered to the water ((EA) 1.2.1.17). They confirm the on-board maintenance checklist and instructions are on board ((EA) 1.2.1.19). For older boats, they look for the statement on the release and retrieval system required under SOLAS III/1.5 ((EA) 1.2.1.16).

So the service firm’s report and its statement that the lifeboat arrangements remain fit for purpose (MSC.402(96) §5.3) should be on board before the surveyor arrives. Without them, the surveyor has nothing to confirm item (EA) 1.2.2.24 against.

The five-yearly work has no window

The five-yearly winch test with 1.1 × the fully loaded boat (SOLAS III/20.11.1.2) and the overhaul and 1.1 × test of on-load release gear (20.11.2.2) are due “at least once every five years”. There is no ±3-month allowance written into SOLAS for this work.

The Bahamas puts it plainly: “There are no provisions in SOLAS Chapter III to postpone the 5 yearly service and load test” (BMA Marine Notice 82, §5.5). In exceptional cases the Bahamas may allow up to three months, but only on an application through the RO, with the master’s statement on the equipment’s condition, the manufacturer’s recommendations and the RO’s conditions (§5.6 and §5.7). Other flags have their own routes. The Marshall Islands, for example, says a short-term certificate must be requested from the RO when timely servicing by an authorised provider is not possible (MN 2-011-37, §8.2.1.5).

A practical habit: plan the five-yearly work to fall inside an annual survey window well before the five years run out. Then the class surveyor can witness it if the flag requires that (see lesson 3), and the report is ready for the survey.

Windows for other equipment are not lifeboat windows

Some flags use the HSSC windows for other life-saving appliances. As of October 2026, Liberia allows inflatable liferafts, marine evacuation systems and hydrostatic release units to be serviced within ±3 months of the due date (Marine Notice SAF-005, §2.2 and §2.3, Rev. 07/26). That flexibility is written for those items. Do not assume it applies to lifeboat servicing.

When the window is missed

If the annual or periodical survey is not completed in time, the certificate “ceases to be valid” (A.1207(34) annex, 5.6). It is restored by doing the missed survey, with a thoroughness that reflects how long it lapsed, and the flag should find out why it was allowed to lapse. Until then the ship is trading without a valid certificate, which any port state control officer reading the certificate dates can see.

Why a six-month window exists

The HSSC came from the 1988 SOLAS Protocol. Before it, surveys for different certificates fell on different dates, and ships were surveyed again and again. The HSSC set a standard one-year interval, a six-month window for annual, intermediate and periodical surveys, and a five-year maximum for cargo ship certificates (A.1207(34) annex, 1.3). It also made periodical surveys of safety equipment alternate between two- and three-year intervals (1.4.2). The aim, as the Liberian notice quotes it, was to “simplify survey requirements” (SAF-005, §2.2).

Extensions are for voyages, not for skipped work

A certificate can be extended by up to three months to let a ship finish its voyage, or one month for ships on short voyages (A.1207(34) annex, 1.3.6). When that happens, the new certificate’s validity runs from the old expiry date (1.3.7). An extension changes the certificate’s dates. It does not move the five-year clock for the lifeboat proof load test.

Changing flag

When a ship changes flag, its certificates stop being valid. The new flag issues new ones only when it is satisfied the ship is properly maintained, and it may ask the old flag for survey records (A.1207(34) annex, 5.8). For lifeboats, the new flag will also expect its own provider rules to be met from the next service on. A firm accepted by the old flag may not be accepted by the new one.

Passenger ships

Passenger ship surveys follow SOLAS I/7, and the certificate lasts at most 12 months. SOLAS III/20.11 refers to “regulations I/7 or I/8”, so on passenger ships the annual lifeboat examination lines up with the yearly passenger ship survey instead.