Seafarer documentsCertificates and qualifications

Electro-technical officer certificate (STCW III/6)

  • STCW III/6
  • Full entry
  • Checked 6 October 2026
Document type
Qualification document
Validity
As issued; competence shown every 5 years
Names in other countries
49 countries
Contents6

1 What it covers

Certificate of Competency – Electro-Technical Officer, 750 kW or more (STCW III/6) certifies competence in the named capacity within the limitations stated on the certificate. It is needed by electro-technical officers on ships with propulsion machinery of 750 kW or more. Validity: as issued; competence shown every 5 years.1–5

2 What it consists of

The certificate requirements include training in: Basic Safety Training STCW VI/1Proficiency in Survival Craft and Rescue Boats Other Than Fast Rescue Boats STCW VI/2Advanced Fire Fighting STCW VI/3Medical First Aid STCW VI/43,6,7

The standard of competence is set by table A-III/6 of the Code.1–3

3 Validity and renewal

Document validity. The expiry date, if the issuing system sets one, is shown on the document itself. This reference does not calculate personal expiry dates.

Maintaining competence. To continue serving at sea, the holder revalidates the certificate at intervals not exceeding 5 years, showing medical fitness and continued professional competence.4,5

4 Which positions

The need follows from the ship and the duties on board, not from the title of the position. In this reference the document appears in the requirements of these positions:

5 Names in 49 countries

How national systems name this document. The original name is given where the source has it; the English name is our editorial rendering.

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Same document

Related document

"Related document" is a national document of its own system that relates to this type but is not automatically equal to it.

6 Frequently asked questions

Who needs the Certificate of Competency – Electro-Technical Officer, 750 kW or more?

Electro-technical officers on ships with propulsion machinery of 750 kW or more. In this reference it appears in the requirements of 2 positions; whether you need it depends on the ship and your duties.1–3

How long is the Certificate of Competency – Electro-Technical Officer, 750 kW or more valid?

The expiry date, if the issuing system sets one, is shown on the document itself. This reference does not calculate personal expiry dates. To continue serving at sea, the holder revalidates the certificate at intervals not exceeding 5 years, showing medical fitness and continued professional competence.4,5

What else is the Certificate of Competency – Electro-Technical Officer, 750 kW or more called?

Also known as Certificate of Competency as Electro-Technical Officer (STCW III/6), ETO. National names in 49 countries are listed on this page.

ETO Certificate of Competency (STCW III/6): Guide | Rynda Crewing