Data Modelling

Welcome to the Maritime Resource Name (MRN) Registry hosted by IALA. This page provides up to date information about Maritime Resource Names and the usage of them within the maritime industry. IALA welcomes comments and contributions either by signing up to our discussion group at https://groups.google.com/forum/#!forum/mrn-discuss or by emailing us directly at minsu.jeon@iala-aism.org .

What is Maritime Resource Name

Maritime Resource Name (MRN) is a naming scheme that can uniquely identify any maritime resource on a global scale. By maritime resource, it means anything that has an identity of some kind. This could be organizations, employees, a person, a physical or a virtual object, for instance an electronic document, a buoy, a ship, a mariner, a nautical chart or an electronic service (e.g., “today’s weather report for the Oresund Strait”). Not all resources are “retrievable” in an electronic sense; For example, human beings, corporations, and buoys. However, they can still be considered a resource.

The original paper was presented at the 17th e-Navigation Technical Committee.

Application Process

Assignment of Organization IDs are mainly reserved for maritime standards development organizations, research projects, scientific societies, and similar bodies. However, anyone can apply and each application is evaluated on a case by case basis by the IALA secretary.

If you wish to apply for an Organization ID please fill out a form similar to this and send it to minsu.jeon@iala-aism.org. We will then get back to you with more details.

Management of MRNs

IALA expects to present a paper about about how to manage namespaces within organizations in a consistent manner. This will also include guidelines and best practices for developing organization specific namespaces.

Who is using it and what for

IALA is currently getting some experience using MRNs in the following projects

http://efficiensea2.org/For identification of users, organizations and services

http://stmvalidation.eu/For identification of organizations, services and voyages

http://www.smartnav.orgFor identification of users

? Vessel Shore Reporting Service

http://www.iho.int/Identifiers utilized within S-100 product specifications

Readers may send feedback about errors, omissions, and ambiguities on this page to contact@iala-aism.org

List of Organization IDs

Organization IDs  Date registering organization contact
urn:mrn:iala: 2017-07-30 International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA)


Minsu Jeon


urn:mrn:iho: 2018-04-04  International Hydrographic Organization (IHO)


Anthony Pharaoh


urn:mrn:mcl: 2017-06-22 Maritime Cloud Development Forum (MCDF)


Thomas Steen Christensen


Urn:mrn:gs1: 2018-10-30 GS1 Global Office


Jaco Voorspuij