International Registries, Inc. providing support to the Marshall Islands Maritime & Corporate Administrators

Minimum Safe Manning Certificate (MSMC)

To ensure that Republic of the Marshall Islands (RMI) yachts are adequately and safely manned in accordance with international regulations, all commercially registered yachts, private yachts limited charter (PYLCs), Yachts Engaged in Trade (YETs), and passenger yachts (PAXYs) are required to have an MSMC on board. For commercial yachts, YETs and PAXYs, these manning requirements apply whenever the yacht proceeds to sea; for PYLCs, the manning requirements apply when the yacht proceeds to sea with charter guests on board. The completed Application for MSMC – Yacht (MI-336Y) may be submitted to any office of the RMI Maritime Administrator.

The MI-336Y is required when:

  • a commercial yacht, PAXY, YET, or PYLC is newly registered with the RMI;
  • there is a name change (for a commercial yacht, PAXY, YET, or PYLC); or 
  • there is any change in status (for example, private status to PYLC). 

RMI manning scales are available in the Code or Minimum Safe Manning Requirements for Vessels (MN 7-038-2). Please note that these scales are the minimum requirements for motor yachts and alternative certification may be considered acceptable on a case-by-case basis. There may be additional personnel and/or training requirements based on the yacht type, propulsion power, etc.

Master and Officer Licensing and Certification

All masters and officers listed on the MSMC are required to possess an appropriate, valid Certificate of Competency (CoC) and RMI endorsement.

To apply for an RMI endorsement the following must be provided:

1.       Completed Officer CoC Application by Endorsement (MI-105)

2.       Valid national CoC (from a recognized administration)

3.       National identity document (passport preferred)

4.       Recent physical (within the last two (2) years)

5.       Passport sized photo

6.       Letter of commitment from the yacht owner or manager

Issue of Republic of the Marshall Islands (RMI) Officer Certificates is based on two methods: (1) by equivalency endorsement (MI-105) or (2) by professional examination (MI-105E). Equivalent Endorsement Certificates  may be issued to certificate holders from major maritime nations whose educational system and examinations are found acceptable. For details, see Annex 12 in Requirements for Merchant Marine Personnel Certification (MI-118).


Applicants who do not hold acceptable national certificates or who desire original RMI certificates must pass written examinations given by the RMI. The examinations incorporate new material required by various conventions and are in a multiple-choice format. These examinations also incorporate material specified by the STCW Convention, as amended. Guidelines for various examinations conducted by the Maritime Administrator can be found here. Certificates issued by examination are valid for a term of five (5) years. For more information, please see MI-118E Seafarer Requirements for Certification by Examination.

Yacht Officer Courses/Examinations
Preliminary application requirements for seafarers wishing to apply for the RMI Master (Yachts) – Unlimited Tonnage certificate of competency can be found here.

Seafarers' Identification and Record Book (SIRB) and Identification Card (ID)

All masters, officers, crewmembers listed on the MSMC and any other crewmembers with designated safety or security related functions on board are required to possess proof of Standards of Training, Certification, and Watchkeeping (STCW) Basic Safety Training and an RMI SIRB. The SIRB serves as the crewmember’s identity document, a record of his/her sea service and contains any Special Qualification Certificates (SQCs). The SIRB is valid for a period of five (5) years. Seafarers may purchase an optional wallet sized ID to serve as another form of documentation.

To apply for an SIRB the following must be provided:

1.       Completed SIRB-SQC Application (MI-273

2.       National identity document (passport preferred)

3.       Recent physical (within the last two (2) years)

4.       Proof of relevant training certificates including Security Awareness Qualifications
(see Marine Safety Advisory 66-13)

5.       Passport sized photo

6.       Letter of commitment from the yacht owner or manager

Receiving/Filing Agents

Over 500 filing agents throughout the world have been approved to receive and file applications. Masters or their appointed agents may apply directly to the RMI Maritime Administrator for authorization to act as a filing agent.

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