Seafarer documentsCertificates and qualifications
Certificate of Competency – Second Engineer Officer, 750–3,000 kW
- STCW III/3
- Full entry
- Checked 6 October 2026
- Document type
- Qualification document
- Validity
- As issued; competence shown every 5 years
- Names in other countries
- 47 countries
Contents6
1 What it covers
Certifies competence in the named capacity within the limitations stated on the certificate.1–3
Who needs it. Second engineer officers serving within the certificate’s 750–3,000 kW propulsion-power range.1–3
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/44–6
The standard of competence is set by table A-III/2 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.7,8
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 47 countries
How national systems name this document. The original name is given where the source has it; the English name is our editorial rendering.
Same document
| Country | Name in the issuing country |
|---|---|
| South Africa | Second Engineer Officer (<3 000 kW)Issued by: South African Maritime Safety Authority · source |
| India | Marine Engineer Officer Class III – Second Engineer Officer, NCV, up to 3,000 kWIssued by: Directorate General of Maritime Administration (DGMA) · source |
| Georgia | 2nd Eng.750–3000 kWSecond engineer 750–3000 kWIssued by: Maritime Transport Agency of Georgia · source |
| Estonia | Väiksema kui 3000 kW peamasinate efektiivse koguvõimsusega mootorlaeva teise mehaaniku diplomSecond Engineer Diploma, motor ship under 3000 kWIssued by: Transpordiamet · source |
Related document
Show all 47 countries
Same document
| Country | Name in the issuing country |
|---|---|
| Bulgaria | Second Engineer, ship propulsion 750–3000 kWsource |
| Peru | Primer oficial de máquinas de buques con máquinas propulsoras principales de 750 a 3000 kWSecond Engineer, 750 to 3,000 kWIssued by: Dirección General de Capitanías y Guardacostas · source |
| Philippines | Second Engineer Officer – 750 to 3000 kWIssued by: Maritime Industry Authority · source |
| Poland | drugi oficer mechanikCertificate of Competency – Second Engineer – 750 to less than 3000 kWIssued by: Polish maritime administration / competent Maritime Office · source |
| Lithuania | antrojo mechaniko kompetencijos liudijimasCertificate of Competency – Second Engineer – 750 to less than 3000 kWIssued by: Lithuanian Transport Safety Administration · source |
| France | Brevet de second mécanicien 3000 kWSecond engineer under 3000 kW certificateIssued by: French maritime administration · source |
| Vietnam | Máy haiCertificate of Competency – Second Engineer – 750 to less than 3000 kWIssued by: Vietnam Maritime and Waterway Administration; historical issuer Vietnam Maritime Administration · source |
| Portugal | Certificado de competência como segundo oficial de máquinas em navios ou embarcações com potência propulsora entre 750 kW e 3000 kWSecond engineer 750–3000 kWIssued by: DGRM · source |
| Portugal | Certificado de competência como segundo oficial de máquinas em navios ou embarcações com potência propulsora entre 750 kW e 3000 kW, limitados a viagens costeirasSecond engineer 750–3000 kW, near-coastalIssued by: DGRM · source |
| Thailand | Second Engineer Officer,750–3000kWCertificate of Competency – Second Engineer Officer,750–3,000 kWIssued by: Marine Department · source |
| United Kingdom | Second Engineer, less than 3000 kW, Unlimited AreaIssued by: Maritime and Coastguard Agency · source |
| Türkiye | İkinci makinistSecond Engineer – 750 to less than 3000 kWIssued by: Denizcilik Genel Müdürlüğü, Ministry of Transport and Infrastructure · source |
| Croatia | drugi časnik strojaCertificate of Competency – Second Engineer – up to 3000 kWIssued by: Ministry of the Sea, Transport and Infrastructure · source |
| Algeria | Brevet d’aptitude de second mécanicien à bord de navires dont l’appareil de propulsion principal a une puissance inférieure à trois mille(3000) kilowattsCertificate of Competency – Second Engineer, Under 3,000 kWIssued by: Administration chargée de la marine marchande · source |
| Bahamas | Certificate of Competency – Second Engineer, 750–3,000 kWIssued by: Bahamas Maritime Authority · source |
| United States | Second Engineer Officer on vessels powered by main propulsion machinery of between 750 kW and 3,000 kWIssued by: United States Coast Guard, National Maritime Center · source |
| Latvia | otrais mehāniķisCertificate of Competency – Second Engineer – less than 3000 kWIssued by: Maritime Administration of Latvia / Latvian Seamen’s Registry · source |
| Myanmar | Marine Engineer Officer Class III – Second Engineer less than3000kWMarine Engineer Officer Class III – Second Engineer less than 3,000 kWIssued by: Department of Marine Administration · source |
| Myanmar | Marine Engineer Officer Class V – Second Engineer less than3000kWMarine Engineer Officer Class V – Second Engineer less than 3,000 kWIssued by: Department of Marine Administration · source |
| Italy | Primo ufficiale di macchina su navi con apparato motore principale tra 750 e 3000 kWSecond engineer 750–3000 kWIssued by: Ministero delle Infrastrutture e dei Trasporti / maritime administration · source |
| Finland | Konemestari, alukset alle 3000 kWEngineer officer's certificate, under 3000 kWIssued by: Traficom · source |
| New Zealand | Marine engineer class 2 on ships less than 3000 kWIssued by: Maritime New Zealand · source |
| Argentina | Maquinista Naval (Máximo de Cargo)Marine Engineer (Maximum Capacity)Issued by: Agencia Nacional de Puertos y Navegación; Prefectura Naval Argentina · source |
| Malaysia | Second Engineer,750–3000kW,Near CoastalCertificate of Competency – Second Engineer,750–3,000 kW, Near CoastalIssued by: Malaysia Marine Department · source |
| Sri Lanka | Certificate of Competency – Second Engineer Officer,750–3000kW,near coastal voyagesCertificate of Competency – Second Engineer Officer,750–3,000 kW, near coastal voyagesIssued by: Merchant Shipping Secretariat / Director General of Merchant Shipping · source |
| Colombia | Primer Oficial de máquinas de buques cuya máquina propulsora principal tenga una potencia comprendida entre 750 y 3000 kW, en viajes próximos a la costaSecond Engineer, 750–3,000 kW, near-coastal voyagesIssued by: Dirección General Marítima (DIMAR) · source |
| Iceland | 2. vélstjóri C/(3.)Second Engineer Certificate C/(3.), 750–3000 kWIssued by: Samgöngustofa · source |
| Jamaica | Second Engineer – Main propulsion power of between 750 kW & 3,000 kWIssued by: Maritime Authority of Jamaica (MAJ) · source |
| Slovenia | drugi častnik stroja na ladji s pogonskim strojem z močjo med 750 in 3000 kWSecond Engineer, ship between 750 and 3000 kWIssued by: Uprava Republike Slovenije za pomorstvo · source |
| Taiwan | 二等大管輪適任證書Certificate of Competency – Second Engineer, National Class 2Issued by: Maritime and Port Bureau / Ministry of Transportation and Communications · source |
Related document
| Country | Name in the issuing country |
|---|---|
| Indonesia | Sertifikat Ahli Teknika Tingkat III ManajemenMarine Engineer Class III – Management (ATT III Manajemen)Issued by: Directorate General of Sea Transportation, Ministry of Transportation · source |
| Spain | Oficial de Máquinas de Segunda Clase de la Marina MercanteMerchant marine engineer officer 2nd classIssued by: Dirección General de la Marina Mercante · source |
| Spain | Mecánico Naval de la Marina MercanteNaval mechanist, merchant marineIssued by: Dirección General de la Marina Mercante · source |
| Spain | Mecánico Mayor Naval de la Marina MercanteSenior naval mechanist, merchant marineIssued by: Dirección General de la Marina Mercante · source |
| Bangladesh | Marine Engineer Officer Class-2 (2nd Engineer Officer) CertificateIssued by: Department of Shipping · source |
| France | Brevet de second mécanicien 3000 kW limité à200 milles des côtesSecond engineer under 3000 kW certificate, within 200 nautical miles of the coastIssued by: French maritime administration · source |
| Ghana | Second EngineerIssued by: Ghana Maritime Authority · source |
| China | 大管轮Certificate of Competency – Second Engineer (大管轮)Issued by: Maritime Safety Administration, Ministry of Transport · source |
| Norway | Certificate of Competency Engineer Officer Class 3Engineer officer Class 3 (M3)Issued by: Norwegian Maritime Authority / Sjøfartsdirektoratet · source |
| Denmark | Skibsmaskinist af 2. gradMechanist 2nd classIssued by: Danish Maritime Authority / Søfartsstyrelsen · source |
| United States | First Assistant EngineerIssued by: United States Coast Guard, National Maritime Center · source |
| United States | Second Assistant EngineerIssued by: United States Coast Guard, National Maritime Center · source |
| Belgium | Second mécanicienSecond engineer certificateIssued by: FPS Mobility and Transport / Scheepvaartcontrole · source |
| Sweden | Maskinbefäl klass IIIEngineer officer Class IIIIssued by: Transportstyrelsen · source |
| Brazil | Segundo Oficial de MáquinasSecond Marine Engineer Officer (2 OM)Issued by: Marinha do Brasil, Diretoria de Portos e Costas · source |
| Chile | Ingeniero TerceroIssued by: Dirección General del Territorio Marítimo y de Marina Mercante · source |
| Ecuador | Primer Oficial de MáquinasFirst Engineer Officer (Second Engineer)Issued by: Dirección Nacional de los Espacios Acuáticos (DIRNEA), Armada del Ecuador · source |
| Uruguay | Primer Oficial de Máquinas o Primer IngenieroSecond Engineer OfficerIssued by: Prefectura Nacional Naval, Dirección Registral y de Marina Mercante (DIRME) · source |
| Uruguay | Primer Oficial de Máquinas de Combustión InternaSecond Engineer Officer of Internal Combustion Engine (ICE)Issued by: Prefectura Nacional Naval, Dirección Registral y de Marina Mercante (DIRME) · source |
"Related document" is a national document of its own system that relates to this type but is not automatically equal to it.
6
Same code STCW III/3: one code is not always one document. The certificate itself and the limitations written in it show which one you hold. Other types under this code: Certificate of Competency – Chief Engineer Officer, 750–3,000 kW1
Accepted in the corresponding fishing vessel capacity: Certificate of Competency – Fishing Vessel Second Engineer Officer, 750–3,000 kW STCW-F II/5-1-29
