Deck

Marshall Islands Master (Yachts) Unlimited Tonnage

RMI-MY-UNL

Modules
5
Lessons
14
Questions
70

Independent study. xplor is not affiliated with the Republic of the Marshall Islands Maritime Administrator and awards no certificate, endorsement or Certificate of Competency. The capstone course and assessment must be completed at a training provider approved by the RMI Administrator, after RMI pre-approval. AI-drafted content pending subject-matter-expert review.

Drafted from RMI Maritime Administrator publications MI-118 Requirements for Seafarer Certification (Rev. Mar/2026), MI-118E Requirements for Seafarer Certification by Examination (Rev. Jan/2025), MI-319Y Guidelines for Deck Officer's Examinations – Yachts (Rev. Feb/2021), SICD-24 Preliminary Application Requirements (Nov/2022), MI-103 Yacht Code 2026 (Rev. May/2026) and Marine Notice MN 7-038-2 (Jul/2024), and the IRI yacht manning web page. Also used: STCW Regulations II/2 and II/3, UK MCA MSN 1858 (M) Amendment 2 (2026) and 46 CFR §11.404. Secondary sources (labelled as such): the MPT Course 855 page, the MACI 2016 recognition notice, and 2016–2017 industry articles..

Rule notes (9)

  1. Recent change

    Engineer manning counts only the largest single engine

    Marine Notice 7-038-2 (Rev. Jul/2024, §A.2.19) sets the engineer grade by the power of the single highest-powered propulsion engine, not the total installed power. Industry press reported it in March and April 2024; the rule itself appears to have come in with the Feb/2024 revision. Check the yacht's engine plate figures, not the brochure total.

    Sources

  2. Recent change

    Yacht Code 2026 replaces the 2021 Code

    MI-103 Yacht Code 2026 (Rev. May/2026) took effect on 1 January 2026. Some RMI documents have not caught up: MN 7-038-2 (Jul/2024) still cites the 2021 Code, and MI-103A (Nov/2022) still says the Inventory of Hazardous Materials applies only on EU port calls, which the 2026 Code contradicts. Where they differ, the 2026 Code is the newer text.

    Sources

  3. Sources disagree

    Minimum age for Chief Mate and First Assistant Engineer

    MI-118 (Rev. Mar/2026) gives 21; the MI-280 Filing Agents Manual (Rev. Jan/2025) gives 19. MI-118 is the certification requirement itself and the more recent revision, but confirm with the Administrator if a candidate falls between the two.

    Sources

  4. Sources disagree

    Medical for an older national CoC: one year or two?

    When the national CoC being endorsed is more than a year old, MI-118 §2.11.18 accepts a medical issued within 2 years, MI-118 Annex 7 says 1 year, and form MI-105 says 24 months. Sending a medical under a year old satisfies all three.

    Sources

  5. Rule to know

    CRA and Urgent Authorisation: 90 days, no extension

    A Certificate of Receipt of Application (MI-151B) or an Urgent Authorisation lets an officer serve for up to 90 days while the endorsement is processed. Neither can be extended, because STCW gives the Administrator 90 days to issue. After a UA, the completed MI-105 must arrive within 15 calendar days or the UA may be invalidated.

    Sources

  6. Not confirmed

    List of recognised administrations

    MI-118 Annex 7, which lists the administrations whose CoCs the RMI will endorse, was last updated in Dec/2017 and repeats some countries. Confirm the current list with the Administrator before relying on it.

    Sources

  7. Not confirmed

    No published processing times

    No RMI document gives a normal processing time for a Certificate of Endorsement or an SIRB. The only fixed figure is the 90-day STCW limit covered by a CRA. Fees are published in Marine Notices 1-005-1 and 1-005-2.

    Sources

  8. Sources disagree

    Prerequisite courses differ between sources

    MI-118 (Rev. Mar/2026) lists 15 courses; the often-quoted "14" comes from 2016 articles. MI-118E (Rev. Jan/2025) adds a GMDSS certificate that MI-118 and SICD-24 (Nov/2022) leave out. The approved provider (MPT) asks for Medical Person in Charge and SSO-level security, where the RMI documents ask for Medical First Aid and Security Awareness. Holding the higher certificate satisfies both.

    Sources

  9. Not confirmed

    Recognition by other flags

    Cayman recognised the RMI Master (Yachts) Unlimited in 2016. Recognition by other flags is not confirmed in any official source we found.

    Sources

RMI-MY-UNL-M1 · The certificate and why it exists

3 lessons

RMI-MY-UNL-M1-A What the RMI Master (Yachts) Unlimited Tonnage CoC is, where it came from and which documents govern it.

In preparation
RMI-MY-UNL-L1.1The 3,000 GT ceiling and why RMI built this certificateYachts outgrew the yacht certificate. Here is how the Marshall Islands answered with a **yacht-only STCW II/2 Master CoC with no tonnage limit**, and why it matters to you.PreviewRMI-MY-UNL-L1.2What the certificate is and what it is notBefore you commit two years to it, understand what this CoC actually authorises: **STCW II/2, yachts only, issued by RMI after examination**, which is not the same thing as an endorsement.LockedRMI-MY-UNL-L1.3Reading the rulebook: MI-118, MI-118E, MI-319Y and SICD-24Four RMI documents describe this certificate, and **they do not say quite the same thing**. Learn which one to rely on for each question, and where they conflict.Locked

RMI-MY-UNL-M2 · Eligibility

3 lessons

RMI-MY-UNL-M2-A The entry certificate, the command sea service and the personal documents RMI needs before it will approve you.

In preparation
RMI-MY-UNL-L2.1The entry certificate: II/2 Master 3,000 GTEvery route to the capstone starts with a **valid STCW II/2 Master 3,000 GT CoC**, either yacht or merchant. This lesson covers which certificates qualify and what 'valid' means.LockedRMI-MY-UNL-L2.2Command sea service: 365 days, 270 at sea, five-year windowThe sea service rule is short but strict: **one year as master on vessels over 500 GT within the last five years**, with **270 actual sea days** for yacht CoC holders or **180** for merchant CoC holders.LockedRMI-MY-UNL-L2.3Personal documents, medical and the SIRBThe capstone checklist ends with the dull items: **medical, passport, photo, privacy consent and the SIRB**. These are the items most likely to delay an otherwise sound application.Locked

RMI-MY-UNL-M3 · Management-level training

3 lessons

RMI-MY-UNL-M3-A The fifteen prerequisite courses, the knowledge standard they lead to, and how to schedule them around a command.

In preparation
RMI-MY-UNL-L3.1The management-level training listRMI requires **fifteen named courses** before the capstone. They follow STCW Table A-II/2 for masters of ships of 3,000 GT or more, **with the cargo subjects removed**.LockedRMI-MY-UNL-L3.2What 'Master Unlimited minus cargo' means in knowledge termsThe capstone tests to Master Unlimited standard, apart from cargo. Here is what that means **subject by subject**, set against the MI-319Y syllabus.LockedRMI-MY-UNL-L3.3Planning the training: validity, sequence and costSome certificates must be **less than five years old on the day you apply**. This lesson covers how to put the course plan in an order that keeps them all in date.Locked

RMI-MY-UNL-M4 · Approval and the capstone

3 lessons

RMI-MY-UNL-M4-A Filing for pre-approval, what happens in the assessment week, and how results and re-sits work.

In preparation
RMI-MY-UNL-L4.1Pre-approval: MI-105E, the USD 300 fee and the yacht crew officeYou cannot sit the capstone assessment until **RMI has approved you**. This lesson covers how to file the MI-105E, where it goes, and why applications get sent back.LockedRMI-MY-UNL-L4.2The capstone week: written papers and simulator assessmentFive days in Fort Lauderdale: **RMI law in the classroom, simulator familiarisation, 140 multiple-choice questions and a three-phase full-mission simulator assessment**.LockedRMI-MY-UNL-L4.3Results, re-sits and the retake clockFail one or two papers and you re-sit **only those**. Fail three or more and you **retake everything**. This lesson covers the timing and the fees.Locked

RMI-MY-UNL-M5 · Holding and using the certificate

2 lessons

RMI-MY-UNL-M5-A Validity, renewal and manning, and how the RMI route compares with the MCA and USCG.

In preparation
RMI-MY-UNL-L5.1Holding the certificate: validity, renewal and the MSMCOnce issued, the CoC is **valid for up to five years**. Renewal needs **one year of sea service in the grade in the last five**, or one of three alternatives, together with current ancillary certificates.LockedRMI-MY-UNL-L5.2RMI, MCA Yachts Unlimited and USCG comparedIn May 2026 the MCA opened its own **Yachts Unlimited** route. This lesson sets the RMI capstone beside it and beside the USCG's merchant-only route, so that you can choose with the facts in front of you.Locked