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IMO STCW 2010 Regulations - Mandatory Minimum Requirements for Certification of Officers In Charge of a Navigational Watch (OICNW) on Ships of 500 Gross Tonnage or More

stcw code ii 1

STCW II/1 Officer in Charge of a Navigational Watch (OICNW) is an operational level STCW endorsement with tonnage limitations for the deck officer on a sea going merchant ship. 

Eligibility for OICNW is defined in STCW Regulation II/1 and the certification is be issued by the local maritime administration of the respective countries.

Some example of OICNW endorsements would be Chief Mate, Third Mate (Third officer), Second Mate (Second Officer), Mate, Mate (Pilot) etc. Please find below the STCW 2010 regulations and tables.

You may also check our STCW Guide section for more clarity on the requirements at various stages of a merchant mariner..

In this section

STCW Code Section A-II/1 - Chapter II (STCW 2010 Resolution 2)

Mandatory Minimum Requirements for Certification of Officers In Charge of a Navigational Watch on Ships of 500 Gross Tonnage or More

OICNW Standard of Competence



  1. Every candidate for certification shall:
    1. be required to demonstrate the competence to undertake, at the operational level, the tasks, duties and responsibilities listed in column 1 of table A-II/1;
    2. at least hold the appropriate certificate for performing VHF radiocommunications in accordance with the requirements of the Radio Regulations; and
    3. if designated to have primary responsibility for radiocommunications during distress incidents, hold the appropriate certificate issued or recognized under the provisions of the Radio Regulations.
  2. The minimum knowledge, understanding and proficiency required for certification is listed in column 2 of table A-II/1.
  3. The level of knowledge of the subjects listed in column 2 of table A-II/1 shall be sufficient for officers of the watch to carry out their watchkeeping duties.*
  4. Training and experience to achieve the necessary level of theoretical knowledge, understanding and proficiency shall be based on section A-VIII/2, part 4-1 – Principles to be observed in keeping a navigational watch – and shall also take into account the relevant requirements of this part and the guidance given in part B of this Code.
  5. Every candidate for certification shall be required to provide evidence of having achieved the required standard of competence in accordance with the methods for demonstrating competence and the criteria for evaluating competence tabulated in columns 3 and 4 of table A-II/1.

OICNW Onboard Training

  1. Every candidate for certification as officer in charge of a navigational watch of ships of 500 gross tonnage or more whose seagoing service, in accordance with paragraph 2.2 of regulation II/1, forms part of a training programme approved as meeting the requirements of this section shall follow an approved programme of onboard training which:
    1. ensures that, during the required period of seagoing service, the candidate receives systematic practical training and experience in the tasks, duties and responsibilities of an officer in charge of a navigational watch, taking into account the guidance given in section B-II/1 of this Code;
    2. is closely supervised and monitored by qualified officers aboard the ships in which the approved seagoing service is performed; and
    3. is adequately documented in a training record book or similar document.*

OICNW Near-Coastal Voyages

  1. The following subjects may be omitted from those listed in column 2 of table A-II/1 for issue of restricted certificates for service on near-coastal voyages, bearing in mind the safety of all ships which may be operating in the same waters:
    1. celestial navigation and;
    2. those electronic systems of position fixing and navigation that do not cover the waters for which the certificate is to be valid.

*The relevant IMO Model Course(s) may be of assistance in the preparation of courses


STCW Table A-II/1 of Chapter II (STCW 2010 Resolution 2)

Specification of minimum standard of competence for officers in charge of a navigational watch on ships of 500 gross tonnage or more

STCW Table A-II/1 PDF

STCW Section B-II/1 of Chapter II (STCW 2010 Resolution 2)

Guidance regarding the certification of officers in charge of a navigational watch on ships of 500 gross tonnage or more

STCW Section B-II/1 PDF


MUST READ:

STCW Regulation II/1

STCW Regulation II/1 of Chapter II (STCW 2010 Resolution 1)

Mandatory Minimum Requirements for Certification of Officers In Charge of a Navigational Watch on Ships of 500 Gross Tonnage or More

  1. Every officer in charge of a navigational watch serving on a seagoing ship of 500 gross tonnage or more shall hold a certificate of competency.
  2. Every candidate for certification shall:
    1. be not less than 18 years of age;
    2. have approved seagoing service of not less than 12 months as part of an approved training programme which includes onboard training that meets the requirements of section A-II/1 of the STCW Code and is documented in an approved training record book, or otherwise have approved seagoing service of not less than 36 months;
    3. have performed, during the required seagoing service, bridge watchkeeping duties under the supervision of the master or a qualified officer for a period of not less than six months;
    4. meet the applicable requirements of the regulations in chapter IV, as appropriate, for performing designated radio duties in accordance with the Radio Regulations;
    5. have completed approved education and training and meet the standard of competence specified in section A-II/1 of the STCW Code; and
    6. meet the standard of competence specified in section A-VI/1, paragraph 2, section A-VI/2, paragraphs 1 to 4, section A-VI/3, paragraphs 1 to 4 and section A-VI/4, paragraphs 1 to 3 of the STCW Code.

Disclaimer: For general information purpose only - please check with IMO STCW Convention for the latest requirements and accurate info

LAST UPDATED ON Mar 12, 2019

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