Oral Exam Prep

OOW (Yachts <3000 GT) — Oral Exam Preparation

OOW-Y<3000

Modules
3
Lessons
59
Questions
295

Independent preparatory study aligned to the MCA OOW (Yachts <3000 GT) oral examination syllabus. Not an MCA-approved course and confers no credit toward a Certificate of Competency.

Aligned to the published MCA syllabus. Official syllabus (GOV.UK). MSN 1858 · syllabus 26 Jan 2023.

Rule notes (12)
  1. Recent change

    OneOcean harassment module for all UK CoC holders by 31 March 2027

    MGN 718 requires everyone holding a UK CoC or CoP, and anyone whose PSSR certificate is dated before 1 January 2026, to complete OneOcean module 0900 by 31 March 2027. It reverses MIN 729 (December 2025), which had said existing PSSR holders needed nothing more. The module is free, online, takes about one hour and gives a digital Verification of Training. Do it now: missing it may hold up your next revalidation.

    Sources

  2. Sources disagree

    PSC&RB and AFF refreshers for OOW (Yachts): the notices disagree

    MSN 1865 Amendment 1 Annex A lists only PST and FPFF refreshers for the OOW (Yachts) <3000 GT CoC. MSN 1858 Amendment 2 section 6 lists PSC&RB for that CoC with five-yearly updating, and MSN 1861 Amendment 1 lists PSC&RB and AFF refreshers for every revalidation. Updating PSC&RB also means updating PST, and AFF means FPFF. Until the MCA settles it, keep PSC&RB in date.

  3. Not confirmed

    MIN 643 short-course rules expire on 30 September 2026

    MIN 643 sets which foreign short-course certificates the MCA accepts and which courses may be taught online. The December 2022 edition carries an expiry of 30 September 2026 and no replacement had been confirmed. Under it, PST, FPFF, PSC&RB and FRB refreshers cannot be done online or peripatetically. Check gov.uk for the successor before booking a course abroad.

  4. Not confirmed

    Y-ticket conversions rest on MIN 642, which expired on 1 December 2025

    MIN 642 sets the routes from Y1–Y4 yacht engineer CoCs to Small Vessel CoCs. Its gov.uk note says it was extended to 1 December 2025; on 26 September 2026 it was still listed, not withdrawn and not replaced. It also cites the Chief Engineer <3000 kW oral as STCW III/2 where MSN 1904 says III/3. An MCA-approved college says Y-tickets can still be revalidated every five years, so conversion is optional for yacht work. Confirm the route with the MCA before paying for modules.

    Sources

  5. Recent change

    Old ML5 form accepted only until 31 December 2026

    The ML5 form MSF 4112 Rev 02/23 is accepted for new referrals only up to and including 31 December 2026; use Rev 01/26 after that. Certificates already issued on the old form stay valid until expiry. A commercial endorsement needs an ML5 or an ENG1.

    Sources

  6. Sources disagree

    GOC or ROC for Chief Mate and Master (Yachts)?

    As printed, the ancillary table in MSN 1858 Amendment 2 marks both GOC and ROC against the Chief Mate and Master (Yachts) columns. The ROC will not satisfy the OOW (Yachts) route. Hold a GOC for any yacht deck CoC until the MCA says otherwise.

  7. Recent change

    Sport or Pleasure Vessel Code replaced MGN 280 on 12 December 2025

    The Sport or Pleasure Vessel Code applies from 12 December 2025 and replaces the Yellow, Blue and Red Codes, MGN 280 for sport or pleasure vessels and the Intended Pleasure Vessels code, with a transition for existing vessels. The Master (Code Vessels <200 GT) oral syllabus still names MGN 280 and LY3, so know both old and new references.

  8. Recent change

    GMDSS certificates now issued by the MCA directly

    Since 12 May 2025 the MCA approves GMDSS courses and issues certificates itself, on form MSF 4354. Exams are run by the training centre with a separate trainer and assessor, and a failed candidate may be allowed one resit within 2 weeks. The fees in MIN 716 (£77 issue, £54 standalone revalidation) come from a notice that expired on 31 May 2026; check current fees.

  9. Recent change

    EPIRB and PLB registration is now mandatory on UK vessels

    MGN 665 Amendment 1 (24 March 2026) makes registration of EPIRBs and 406 MHz PLBs on UK ships and watercraft mandatory, and failing to register is an offence. Check the yacht's beacons and any crew PLBs are registered with the UK Beacon Registry and the details are current.

  10. Not confirmed

    MSN 1858 Amendment 2 cites notice amendments not yet published

    MSN 1858 Amendment 2 refers to MSN 1865, MSN 1862 and MSN 1864 Amendment 2, but gov.uk showed only Amendment 1 of each when checked. xplor courses follow Amendment 1. If a later amendment appears, its requirements override what is taught here.

  11. Recent change

    Accident reporting: new UK Regulations from 15 May 2026

    The Merchant Shipping (Accident Reporting and Investigation) Regulations 2026 (SI 2026/430) came into force on 15 May 2026 and revoke the 2012 Regulations. Serious injury means incapacitation for more than 72 hours starting within seven days. Evidence, including VDR data, must be preserved, normally for 30 days after notification.

  12. Recent change

    Mediterranean SOx ECA: 0.10% sulphur fuel since 1 May 2025

    The Mediterranean became a SOx Emission Control Area on 1 May 2025, with a fuel sulphur limit of 0.10% m/m. Engineers bunkering or changing over fuel for Mediterranean passages must plan to that limit.

    Sources

OOW-1 · Navigation

29 lessons

OOW-1.1 Plan and Conduct a Passage Including Position Determination

In preparation
OOW-1.1.1Passage planning and use of navigational publicationsCovers the four-stage APEM passage planning framework, the navigational publications consulted at each stage, and the statutory basis under SOLAS V Reg 34 as applied to MCA-certificated vessels.PreviewOOW-1.1.2IALA maritime buoyage systems A and BThis lesson covers the IALA maritime buoyage Systems A and B, including lateral, cardinal, isolated danger, safe water, special, and emergency wreck marking buoys, with emphasis on the key colour reversal between the two systems.LockedOOW-1.1.3Electronic navigation systems - limitations, errors and correctionThis lesson covers the limitations and error sources of electronic navigation systems including GNSS, radar, and echo sounder, and the methods an OOW uses to detect and correct those errors.LockedOOW-1.1.4Limitations of ECDIS and RCDS chart systemsThis lesson covers the operational and regulatory limitations of ECDIS and RCDS chart systems, including when paper charts remain mandatory, the significance of CATZOC, datum shifts, and overscaling.LockedOOW-1.1.5Radar and ARPA - use, modes, errors and parallel indexingThis lesson covers the use of radar and ARPA on watch — display modes, true and relative vectors, common radar errors, ARPA limitations, and the practical application of parallel indexing for track-keeping.LockedOOW-1.1.6Sextant - use and correction of errorsCovers the operating procedure, logical sequence of error identification and correction (error of perpendicularity, side error, index error), and the principles behind taking and recording a sextant altitude.LockedOOW-1.1.7Azimuth mirror, pelorus and bearing instrumentsThis lesson covers the purpose, correct use and limitations of the azimuth mirror, pelorus and hand bearing compass, including how each instrument is used to take and verify compass bearings at sea.LockedOOW-1.1.8Meteorological information and shipboard instrumentsThis lesson covers the sources of meteorological information available to the OOW and the correct use and interpretation of shipboard met instruments within the context of passage planning and watchkeeping.LockedOOW-1.1.9Interpreting weather forecasts and weather systemsThis lesson covers how an OOW interprets weather forecasts, synoptic charts, pressure tendency and frontal systems to make informed routing decisions at sea.LockedOOW-1.1.10Position monitoring and action when off trackThis lesson covers the principles and practice of continuous position monitoring during a passage, and the structured actions an OOW must take when the vessel is found to be off the planned track.LockedOOW-1.1.11Variation and deviation - true and compass conversionThis lesson covers the relationship between true, magnetic, and compass bearings, and the correct application of variation and deviation when converting between them in either direction.LockedOOW-1.1.12Fixing position by magnetic bearings and radar rangesThis lesson covers how to determine a vessel's position by converting compass bearings to true bearings for plotting, using radar ranges as circular lines of position, and combining both methods to achieve a reliable fix.LockedOOW-1.1.13Course to steer and ETAThis lesson teaches candidates how to correctly derive a compass course to steer that accounts for tidal stream and leeway, and how to calculate an accurate ETA based on speed over ground rather than speed through water.LockedOOW-1.1.14Correcting charts using Notices to MarinersThis lesson covers the purpose and practical application of Notices to Mariners for correcting paper charts, including the distinction between NtMs, navigational warnings, T&P notices, and electronic chart updates.LockedOOW-1.1.15Tidal heights for standard and secondary portsThis lesson distinguishes standard and secondary ports, explains how tidal height calculations are performed for each, and highlights the interpolation requirement for secondary port height differences.LockedOOW-1.1.16Tidal set and rate from chart and tidal stream atlasThis lesson covers how to extract tidal set and rate from Admiralty chart tidal stream diamonds and tidal stream atlases, including interpolation between spring and neap rates.Locked

OOW-1.2 Maintain a Safe Navigational Watch

In preparation
OOW-1.2.1Principles of navigational watchkeepingThis lesson distinguishes the key principles governing navigational watchkeeping under MSN 1858, including the difference between keeping and maintaining a watch, lookout versus watchkeeping duties, standing orders versus night orders, and the OOW's duty to act versus the duty to call the master.LockedOOW-1.2.2Collision Regulations - content, application and intentThis lesson prepares candidates to explain the structure, content, and practical application of the COLREGs to pass-standard in the MCA OOW oral examination, with particular focus on rules most commonly probed by examiners.LockedOOW-1.2.3Bridge equipment - ROT indicator, course recorder, echo sounder, NAVTEXThis lesson covers the function, correct use, and watchkeeping significance of the ROT indicator, course recorder, echo sounder, and NAVTEX receiver as bridge equipment relevant to maintaining a safe navigational watch.LockedOOW-1.2.4Steering control systems and manual to auto changeoverThis lesson distinguishes hand steering, autopilot, and non-follow-up control modes, explains when each is appropriate under MCA requirements, and details the safe procedure for changeover between manual and automatic steering.LockedOOW-1.2.5ICS Bridge Procedures Guide and STCW Code A-VIIIThis lesson covers why STCW Code A-VIII and the ICS Bridge Procedures Guide exist, what mandatory watchkeeping standards they establish, and how those standards apply practically on a yacht under 3000 GT.LockedOOW-1.2.6AIS - principles, limitations and modes of operationThis lesson covers how AIS works, the difference between Class A and Class B operation, the three operating modes, and the critical limitations that every OOW must understand to avoid over-reliance on the system.LockedOOW-1.2.7Maintaining navigational recordsThis lesson covers the legal basis, required content, timing discipline, and professional responsibility associated with maintaining navigational records on a yacht under 3000 GT, as underpinned by MSN 1858.LockedOOW-1.2.8Handing over and relieving the navigational watchThis lesson covers the step-by-step procedure for handing over and relieving the navigational watch, explaining the reason behind each stage and the statutory obligations underpinned by MSN 1858.Locked

OOW-2 · Response to Navigational Emergencies

13 lessons

OOW-2.2 Response to Other Emergencies

In preparation
OOW-2.2.1Emergency parties and drillsCovers the purpose, organisation, and conduct of emergency parties and drills on yachts under 3000 GT, underpinned by MSN 1858 and the Large Yacht Code framework.LockedOOW-2.2.2Fire prevention, appliances and fire and safety plansThis lesson distinguishes fire classes, extinguishing agents, fixed versus portable firefighting appliances, and the content and placement requirements for fire and safety plans under MSN 1858.LockedOOW-2.2.3Classes and chemistry of fireThis lesson covers the fire triangle and tetrahedron, the European classification of fire by fuel type, and the chemical principles that determine why specific extinguishing agents work against each class.LockedOOW-2.2.4Lifesaving appliances - EPIRBs, SARTs, immersion suits and line-throwingCovers EPIRB and SART operation, testing, and key differences; immersion suit donning and inspection; and line-throwing appliance use, at the standard required for the MCA OOW (Yachts <3000 GT) oral examination.LockedOOW-2.2.5Survival craft markings and distress signalsThis lesson distinguishes survival craft markings from distress signals, teaching candidates the required markings on survival craft and how to select the correct distress signal type for given conditions.LockedOOW-2.2.6Launch and manage survival craft, recover rescue boatThis lesson covers the correct sequence and command responsibilities for launching inflatable survival craft, managing a liferaft after deployment, and safely recovering a rescue boat in a seaway, with emphasis on the management phase that candidates most commonly neglect.LockedOOW-2.2.7Protection and safety of passengers in emergenciesThis lesson covers the OOW's responsibilities for mustering, briefing, equipping and safely moving passengers during an onboard emergency, referenced to MSN 1858 and the Large Yacht Code framework.LockedOOW-2.2.8Basic principles of survivalThis lesson covers the basic principles of survival after maritime abandonment, explaining the physiological and situational reasoning behind protection, position-keeping, water and food management, signalling, and psychological resilience.LockedOOW-2.2.9Sources of medical informationThis lesson distinguishes the Ship Captain's Medical Guide, Radio Medical Advice via MRCC, and the TMAS framework, clarifying when each is used and how they relate to one another under MSN 1858.Locked

OOW-3 · Onboard Ship Operations

17 lessons

OOW-3.3 Legislative Requirements

In preparation
OOW-3.3.1MSNs, MGNs, MINs and Notices to MarinersCovers the legal status, issuing authority and practical purpose of MSNs, MGNs, MINs and Notices to Mariners, with emphasis on the distinctions an MCA oral examiner will test.LockedOOW-3.3.2Health and safety legislation and Code of Safe Working PracticesCovers the legal basis for crew health and safety aboard commercial yachts, the role of COSWP as the practical compliance tool, and the OOW's personal duty as a supervisor under health and safety legislation.LockedOOW-3.3.3Relevant IMO conventions - SOLAS and marine environment protectionThis lesson covers how SOLAS and MARPOL apply to commercial yachts under 3,000 GT, their key chapters and annexes, and how they are implemented through UK instruments such as MSN 1858 and the Large Yacht Code.LockedOOW-3.3.4International Safety Management (ISM) CodeThis lesson explains the purpose, structure and certificate framework of the ISM Code, and the OOW's responsibilities within a vessel's Safety Management System.LockedOOW-3.3.5Flag and Port State ControlThis lesson covers the purpose, legal basis, and practical procedures of Flag State and Port State Control, with particular reference to how a PSC inspection unfolds and the OOW's responsibilities within it.LockedOOW-3.3.6International Ship and Port Security (ISPS) CodeThis lesson covers the ISPS Code's purpose, scope, three security levels, key duty-holders, the Ship Security Plan, the ISSC, and Declarations of Security as required for the MCA OOW oral examination.Locked

OOW-3.4 Business and Law

In preparation
OOW-3.4.1Small Vessels Code and Large Commercial Yacht Code (LY3)This lesson establishes why purpose-built codes supplement SOLAS for smaller commercial vessels, distinguishes the scope of the Small Vessels Code from LY3, and maps where LY3 obligations directly affect an OOW's duties on a superyacht under 3000 GT.LockedOOW-3.4.2Musters and drills - fire, emergency and abandon shipThis lesson covers the regulatory requirements under MSN 1858 for fire, emergency and abandon ship drills aboard yachts, including correct frequencies, what each drill must comprise, muster list obligations, and accurate log-keeping.LockedOOW-3.4.3Legal obligation to ensure a seaworthy vesselThis lesson covers the statutory legal obligation on the owner and master to ensure a vessel is seaworthy, the scope of that duty, and the consequences of breach, as examined under the MCA OOW oral.LockedOOW-3.4.4Basic law of salvageThis lesson covers the legal definition and elements of salvage, the distinction from towage, Lloyd's Open Form, and the master's authority to enter a salvage agreement, aligned to MSN 1858 and the 1989 Salvage Convention.LockedOOW-3.4.5Safe manning, hours of work and watchkeepingThis lesson covers the MCA's safe manning requirements and the MSN 1858 hours-of-rest framework — minimum rest periods, record-keeping obligations, exceptions, and how to demonstrate competent situational judgement in the oral exam.LockedOOW-3.4.6Crew agreement requirementsCovers the legal requirement for, content of, and practical management of Crew Agreements on UK-flagged yachts under MSN 1858.Locked