For a seafarer whose documents are ready, the vessel's flag is one of the most decisive lines in a posting. Working on a Turkish-flag vessel and working on a foreign-flag vessel are not the same on the document side. This article explains how certificates obtained in Türkiye are treated under another flag and what to ask the employer.
Why the flag matters
Whichever country's flag a vessel flies, that country's maritime administration has a say in which documents are accepted on board. The International Maritime Organization (IMO) publishes an information page on this: it collects the information STCW Parties send about which other Parties' certificates they recognise for service on ships flying their flag.
The existence of that page alone shows something important: for an STCW certificate to be of use under another flag, that flag's administration has to recognise it.
STCW is a common standard; recognition is a separate step
The STCW Convention was adopted in 1978 and substantially amended in Manila in 2010. In IMO's words, the convention sets out the minimum standards of competence for seagoing personnel in detailed tables. Türkiye is a party to the convention, and Turkish regulations organise training and certification under it.
A common standard makes certificates comparable. But being comparable does not mean being automatically valid under every flag. Recognition is a separate step taken by the flag State.
How this looks on the Turkish side
This logic is reflected in the Turkish rules, in the article of the Seafarers and Maritime Pilots Regulation on foreign certificates. The regulation makes the acceptance in Türkiye of certificates of competency issued by other administrations subject to conditions:
- the issuing country is on IMO's published list of countries giving full effect to the convention,
- a bilateral agreement or protocol on recognition of certificates under STCW Regulation I/10 exists with that country,
- the certificate was issued under the relevant rules of the convention and meets quality standards,
- the training and certification behind the certificate are verified.
Under the regulation, officers with foreign certificates approved on these terms may work only on Turkish-flag vessels registered in the Turkish International Ship Registry and trading beyond cabotage. The same article states that a certificate of competency from a foreign administration cannot be converted into a Turkish seafarer's book and certificate.
If Türkiye puts other countries' certificates through such a detailed process, it is reasonable to expect other flags to apply their own processes to Turkish certificates. The details differ from flag to flag, and we do not state a single rule here. The right answer comes from the flag of the vessel in the posting and the employer's written explanation.
Your seafarer's book is bilingual
Under the regulation, the seafarer's book is issued with a photograph in Turkish and English, including the certificates of competency and specialist certificates. This makes it easier for a foreign employer or port official to read your document. Being readable and being recognised are different things, however. The first concerns the format of the book; the second depends on the flag administration's decision.
Questions to ask the employer
Before applying for a foreign-flag vessel, getting written answers to these questions makes things easier:
- Which country's flag does the vessel fly?
- Which documents are required for the position, and are my Turkish certificates accepted under this flag?
- Is a separate document or approval from the flag administration needed, and if so, who handles that process?
- Which country's law governs the employment agreement, and will I receive a copy before signing?
- What is expected of me for visas and travel documents?
Written answers let you show what was agreed if a document problem arises later. These questions are especially decisive for officer positions. For ratings and hotel department positions, the documents required can also vary by flag.
As important as documents: the agreement and your rights
Working conditions on a foreign-flag vessel are also tied to an international framework. The International Labour Organization's Maritime Labour Convention (MLC, 2006) covers minimum age, employment agreements, hours of work and rest, payment of wages, annual leave, repatriation, medical care on board, accommodation and complaint procedures, among other subjects. Türkiye approved the ratification of this convention by Law No. 6898.
We cover the items that must appear in the agreement, and your rights before signing, in detail in a separate guide.
Passport and visa
On foreign-flag vessels, the remaining validity of the passport is an often overlooked point. People can be held up by their passport even when the seafarer's book is ready. The visa application belongs to the individual; which visa is needed depends on the vessel's route and the ports it calls at.
Frequently asked questions
Is my Turkish STCW certificate valid under every flag?
STCW provides a common standard, but recognition of a certificate for service on a vessel under another flag depends on that flag's administration. IMO publishes the information Parties send on this.
Can I convert a certificate of competency obtained abroad into a Turkish seafarer's book?
Under the regulation, no. A certificate of competency from a foreign administration cannot be converted into a Turkish seafarer's book and certificate.
Which rules govern my agreement on a foreign-flag vessel?
That should be written in the agreement itself. Ask for a copy before signing and read which law it is subject to.