Seafarer documentsCertificates and qualifications
Second engineer certificate of competency, 3,000 kW or more
- STCW III/2
- Full entry
- Checked 6 October 2026
- Document type
- Qualification document
- Validity
- As issued; competence shown every 5 years
- Names in other countries
- 57 countries
Contents7
1 What it covers
Certificate of Competency – Second Engineer Officer, 3,000 kW or more (STCW III/2) certifies competence in the named capacity within the limitations stated on the certificate. It is needed by second engineer officers on ships with main propulsion machinery of 3,000 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/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.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 57 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 OfficerIssued by: South African Maritime Safety Authority · source |
| Ukraine | Second engineer officer, any propulsion powersource |
| India | Marine Engineer Officer Class IIIssued by: Directorate General of Maritime Administration (DGMA) · source |
| India | Marine Engineer Officer Class II – Second Engineer Officer,NCV,up to8000kW,other than tankersMarine Engineer Officer Class II – Second Engineer Officer, NCV, up to 8,000 kW, other than tankersIssued by: Directorate General of Maritime Administration (DGMA) · source |
| Georgia | 2nd Eng.3000 kW or moreSecond engineer 3000 kW or moreIssued by: Maritime Transport Agency of Georgia · source |
Related document
Show all 57 countries
Same document
| Country | Name in the issuing country |
|---|---|
| Estonia | 3000 kW ja suurema peamasinate efektiivse koguvõimsusega mootorlaeva teise mehaaniku diplomSecond Engineer Diploma, motor ship 3000 kW or moreIssued by: Transpordiamet · source |
| Indonesia | Sertifikat Ahli Teknika Tingkat IIMarine Engineer Class II (ATT II)Issued by: Directorate General of Sea Transportation, Ministry of Transportation · source |
| Bulgaria | Second Engineer, ship propulsion over 3000 kWsource |
| Peru | Primer oficial de máquinas de buques con máquinas propulsoras principales de potencia igual o superior a 3000 kWSecond Engineer, 3,000 kW or moreIssued by: Dirección General de Capitanías y Guardacostas · source |
| Philippines | Second Engineer Officer – 3000 kW or moreIssued by: Maritime Industry Authority · source |
| Poland | drugi oficer mechanikCertificate of Competency – Second Engineer – 3000 kW or moreIssued by: Polish maritime administration / competent Maritime Office · source |
| Lithuania | antrojo mechaniko kompetencijos liudijimasCertificate of Competency – Second Engineer – 3000 kW or moreIssued by: Lithuanian Transport Safety Administration · source |
| France | Brevet de second mécanicienSecond engineer certificateIssued by: French maritime administration · source |
| Netherlands | Tweede werktuigkundige alle zeeschepenSecond engineer officer all seagoing shipsIssued by: Ministerie van Infrastructuur en Waterstaat / Kiwa Register · source |
| Vietnam | Máy haiCertificate of Competency – Second Engineer – 3000 kW or moreIssued 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 igual ou superior a 3000 kWSecond engineer 3000 kW or moreIssued by: DGRM · source |
| Thailand | Second Engineer Officer,3000kW or moreCertificate of Competency – Second Engineer Officer,3,000 kW or moreIssued by: Marine Department · source |
| United Kingdom | Second Engineer, UnlimitedIssued by: Maritime and Coastguard Agency · source |
| Türkiye | Uzakyol ikinci mühendisi/makinistiSecond Engineer, UnlimitedIssued by: Denizcilik Genel Müdürlüğü, Ministry of Transport and Infrastructure · source |
| Croatia | drugi časnik strojaCertificate of Competency – Second Engineer – 3000 kW or moreIssued by: Ministry of the Sea, Transport and Infrastructure · source |
| Greece | Δίπλωμα Μηχανικός Β΄ τάξης Ε.Ν.Merchant Navy Engineer – Class BIssued by: Ministry of Maritime Affairs and Insular Policy · source |
| Algeria | Brevet d’aptitude de second mécanicien à bord de navires dont l’appareil de propulsion principal a une puissance égale ou supérieure à trois mille(3000) kilowattsCertificate of Competency – Second Engineer,3,000 kW or MoreIssued by: Administration chargée de la marine marchande · source |
| Pakistan | Marine Engineer Officer Class-II (Second Engineer)Marine Engineer Officer Class II – Second EngineerIssued by: Mercantile Marine Department / Directorate General Ports and Shipping · source |
| Bahamas | Certificate of Competency – Second Engineer, 3,000 kW or moreIssued by: Bahamas Maritime Authority · source |
| Hong Kong | Certificate of Competency (Marine Engineer Officer) Class 2 – CombinedIssued by: Hong Kong Marine Department · source |
| Hong Kong | Certificate of Competency (Marine Engineer Officer) Class 2 – MotorIssued by: Hong Kong Marine Department · source |
| Hong Kong | Certificate of Competency (Marine Engineer Officer) Class 2 – SteamIssued by: Hong Kong Marine Department · source |
| United States | Second Engineer Officer on vessels powered by main propulsion machinery of 3,000 kW or moreIssued by: United States Coast Guard, National Maritime Center · source |
| Latvia | otrais mehāniķisCertificate of Competency – Second Engineer – 3000 kW or moreIssued by: Maritime Administration of Latvia / Latvian Seamen’s Registry · source |
| Myanmar | Marine Engineer Officer Class IIIssued by: Department of Marine Administration · source |
| Sweden | Maskinbefäl klass IIEngineer officer Class IIIssued by: Transportstyrelsen · source |
| Finland | KonemestariSecond engineer officer's certificateIssued by: Traficom · source |
| New Zealand | Marine engineer class 2Issued by: Maritime New Zealand · source |
| Argentina | Maquinista Naval de PrimeraFirst-class Marine EngineerIssued by: Agencia Nacional de Puertos y Navegación; Prefectura Naval Argentina · source |
| Malaysia | Second Engineer,3000kW or more,Near CoastalCertificate of Competency – Second Engineer,3,000 kW or more, Near CoastalIssued by: Malaysia Marine Department · source |
| Malaysia | Second Engineer,3000kW or more,UnlimitedCertificate of Competency – Second Engineer,3,000 kW or more, UnlimitedIssued by: Malaysia Marine Department · source |
| Sri Lanka | Certificate of Competency – Second Engineer OfficerIssued by: Merchant Shipping Secretariat / Director General of Merchant Shipping · source |
| Colombia | Primer Oficial de máquinas de buques cuya máquina propulsora principal tenga una potencia igual o superior a 3000 kWSecond Engineer, 3,000 kW or moreIssued by: Dirección General Marítima (DIMAR) · source |
| Iceland | 2. vélstjóri D/(4.)Second Engineer Certificate D/(4.), unrestrictedIssued by: Samgöngustofa · source |
| Jamaica | Second Engineer – Main propulsion power of 3,000 kW or moreIssued by: Maritime Authority of Jamaica (MAJ) · source |
| Slovenia | drugi častnik stroja na ladji s pogonskim strojem z močjo 3000 kW ali večSecond Engineer, ship 3000 kW or moreIssued by: Uprava Republike Slovenije za pomorstvo · source |
| Taiwan | 一等大管輪適任證書Certificate of Competency – Second Engineer, National Class 1Issued by: Maritime and Port Bureau / Ministry of Transportation and Communications · source |
Related document
| Country | Name in the issuing country |
|---|---|
| Romania | Brevet de ofițer mecanic secundCertificate of Competency – Second EngineerIssued by: Autoritatea Navală Română · source |
| 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 Primera Clase de la Marina MercanteMerchant marine engineer officer 1st classIssued by: Dirección General de la Marina Mercante · source |
| Bangladesh | Marine Engineer Officer Class-2 (2nd Engineer Officer) CertificateIssued by: Department of Shipping · source |
| Germany | Zweiter technischer Schiffsoffizier TZOSecond engineer officer (TZO)Issued by: BSH · source |
| France | Brevet de second polyvalentDual-purpose senior officer certificateIssued by: French maritime administration · source |
| France | Brevet de second mécanicien 8000 kWSecond engineer under 8000 kW certificateIssued by: French maritime administration · source |
| Mexico | Primer Maquinista NavalIssued by: SEMAR, Dirección General de Marina Mercante · source |
| Netherlands | Eerste maritiem officierSenior dual-purpose maritime officerIssued by: Ministerie van Infrastructuur en Waterstaat / Kiwa Register · 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 2Engineer officer Class 2 (M2)Issued by: Norwegian Maritime Authority / Sjøfartsdirektoratet · source |
| Denmark | Skibsmaskinmester af 1. gradEngineer officer 1st 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 |
| Italy | Primo ufficiale di macchina su navi con apparato motore principale pari o superiore a 3000 kWSecond engineer 3000 kW or moreIssued by: Ministero delle Infrastrutture e dei Trasporti / maritime administration · source |
| Belgium | Second mécanicienSecond engineer certificateIssued by: FPS Mobility and Transport / Scheepvaartcontrole · source |
| Canada | Second-class Engineer, Motor ShipIssued by: Transport Canada Marine Safety and Security · source |
| Canada | Second-class Engineer, SteamshipIssued by: Transport Canada Marine Safety and Security · source |
| Australia | Engineer Class 2Issued by: Australian Maritime Safety Authority · source |
| New Zealand | Marine engineer Class 2 endorsed Chief engineerIssued by: Maritime New Zealand · source |
| Brazil | Primeiro Oficial de MáquinasFirst Marine Engineer Officer (1 OM)Issued by: Marinha do Brasil, Diretoria de Portos e Costas · source |
| Brazil | Segundo Oficial de MáquinasSecond Marine Engineer Officer (2 OM)Issued by: Marinha do Brasil, Diretoria de Portos e Costas · source |
| Brazil | Oficial Superior de MáquinasSenior Marine Engineer Officer (OSM)Issued by: Marinha do Brasil, Diretoria de Portos e Costas · source |
| Chile | Ingeniero Jefe de MáquinasIssued by: Dirección General del Territorio Marítimo y de Marina Mercante · source |
| Chile | Ingeniero PrimeroIssued by: Dirección General del Territorio Marítimo y de Marina Mercante · source |
| Chile | Ingeniero SegundoIssued 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/2: 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, 3,000 kW or more1
Accepted in the corresponding fishing vessel capacity: Certificate of Competency – Fishing Vessel Second Engineer Officer, 3,000 kW or more STCW-F II/5-1-18
With the appropriate endorsement allows service under: Certificate of Competency – Chief Engineer Officer, 750–3,000 kW STCW III/39
7 Frequently asked questions
Who needs the Certificate of Competency – Second Engineer Officer, 3,000 kW or more?
How long is the Certificate of Competency – Second Engineer Officer, 3,000 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 – Second Engineer Officer, 3,000 kW or more called?
Also known as Certificate of Second Engineer 3000+ kW. National names in 57 countries are listed on this page.