STCW Certificate Renewal: What Expires When, How to Revalidate, and What It Costs
Before the 2010 Manila Amendments to STCW came into full force in 2017, most seafarer certificates had no expiry date. Today, virtually every STCW certificate has a five-year validity period. For seafarers who completed their initial training as a package — typically during a cadetship — everything was issued at the same time and will expire at the same time. If you have never planned your revalidation, that moment is approaching, and the combined cost of renewing everything at once can exceed £3,000.
Which Certificates Require Revalidation Every Five Years
| Certificate | Validity | Revalidation Route |
|---|---|---|
| Basic Safety Training (all 4 elements) | 5 years | Sea service or refresher course |
| Advanced Firefighting (AFF) | 5 years | Sea service or refresher course |
| PSCRB | 5 years | Sea service or refresher course |
| Medical First Aid (MFA) | 5 years | Sea service or refresher course |
| Medical Care (MC) | 5 years | Sea service or refresher course |
| GMDSS GOC / LRC | 5 years | Refresher training required (cannot use sea service alone) |
| HELM Operational | 5 years | Sea service in watchkeeping role or refresher |
| HELM Management | 5 years | Sea service in management/command role or refresher |
| ECDIS (generic + type-specific) | 5 years | Sea service using ECDIS or refresher |
| Tanker endorsements (oil, chemical, gas) | 5 years | Sea service on applicable vessel type or refresher |
| Crowd Management (passenger vessels) | 5 years | Sea service on passenger vessel or refresher |
The Two Revalidation Routes
Route 1: Qualifying Sea Service
If you have completed at least 12 months of qualifying sea service in the past five years and have been exercising the relevant STCW competencies during that service, you can revalidate many certificates by submitting a declaration of sea service to the MCA (or your flag state authority) rather than attending a refresher course. Your CoC is then revalidated by the MCA on receipt of the valid underlying certificates.
Important nuances: you must have been actively exercising each specific competency. An officer who has sailed as a watchkeeper but has not performed any firefighting duties during their sea service may still need an AFF refresher, even with valid sea service. The MCA publishes detailed guidance on qualifying sea service for each certificate — read it before assuming your service covers everything.
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