Welcome to the Maritime Resource Name (MRN) portal site. This page provides up-to-date information about Maritime Resource Names and their usage within the maritime industry. IALA welcomes comments and contributions by emailing us directly at the secretariat, tm@iala.int .

What is it?
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.
R1023 Maritime Resource Names
G1143 Unique Identifiers for Maritime Resources
Application Process
Assignment of Organization IDs is mainly reserved for maritime standards development organizations, research projects, scientific societies, and similar bodies. The detailed procedure is defined in the IALA Guideline G1164.
G1164 Management of MRN Organisation Identifiers
Maritime Resource Name
If you wish to apply for an Organization ID please fill out a form similar to this and send it to tm@iala.int. We will then get back to you with more details.
Management of MRNs
The management of MRN Organisation Identifiers is set out in IALA Guideline G1164. Guidance on the structure and use of identifiers is given in Guideline G1143.
Who is using it, and what for
MRNs were first used in projects such as EfficienSea2 (identification of users, organizations and services), STM Validation (organizations, services and voyages) and SMART-Navigation (users). They are now used, among others, by IHO for identifiers within S-100 product specifications and by the Maritime Connectivity Platform for the identities of organizations, users, vessels and services.
Readers may send feedback about errors, omissions, and ambiguities on this page to contact@iala.int
List of Organization IDs
ISO 3166 country codes Alpha 2 and 3 are reserved in OID.
| Organization IDs | Date | Registering organization | contact |
| urn:mrn:iala: | 2017-07-30 |
International Organization for Marine Aids to Navigation (IALA) Homepage |
Minsu Jeon tm@iala.int |
| urn:mrn:iho: | 2018-04-04 |
International Hydrographic Organization (IHO) http://www.iho.int |
Yong Baek addt@iho.int |
|
urn:mrn:mcl: urn:mrn:mcp: | 2017-06-22 |
Maritime Connectivity Platform Consortium |
Thomas Steen Christensen thomas@dmc.international |
| Urn:mrn:gs1: | 2018-10-30 |
GS1 Global Office |
Jaco Voorspuij |
| urn:mrn:mission: | 2019-2-01 |
Manage Information Seamlessly in Ports and Hinterlands (MISSION) | Anisa Rizvanolli Anisa.Rizvanolli@cml.fraunhofer.de |
| urn:mrn:ipcdmc: | 2019-06-26 |
International Port Collaborative Decision Making Council (IPCDMC) |
Michael Bergmann |
| urn:mrn:stm: | 2019-03-28 |
Sea Traffic Management (STM) |
Fredrik Karlsson |
| urn:mrn:nlp: | 2020-03-20 | Navelink Industry Consortium https://navelink.org | Tobias Axelsson info@navelink.org |
| urn:mrn:kor: | 2020-03-27 | The Ministry of Oceans and Fisheries, Republic of Korea (MOF) http://mof.go.kr | Sunbae Hong hong0610@korea.kr |
| urn:mrn:iehg | 2023-03-11 | The Inland ENC Harmonization Group (IEHG) https://ienc.openecdis.org/ | Denise LaDue Denise.R.LaDue@usace.army.mil, Bernd Birklhuber bernd.birklhuber@bmk.gv.at |
| urn:mrn:fin | 2023-03-11 | Finnish Transport and Communications Agency Traficom https://www.traficom.fi | Stefan Engström / Mikko Hovi stefan.engstrom@traficom.fi / mikko.hovi@traficom.fi |
| urn:mrn:amura | 2025-07-03 | Amura Smart Solutions Ecosystem https://amurasolutions.com/ | Airam Rodriguez Rodriguez arodriguez@amurasolutions.com |
| urn:mrn:aurora | 2025-07-03 | Aurora Maritime Orchestrator Interoperability Framework | Airam Rodriguez Rodriguez arodriguez@amurasolutions.com |
| urn:mrn:hiades | 2025-07-03 | Hiades, https://hiades.es | Airam Rodriguez Rodriguez arodriguez@hiades.es |
| urn:mrn:edme | 2025-09-03 | Espacio de Datos Marítimo Español http://edme.cloud | Isaac González contacto@edme.cloud |
| urn:mrn:wmds | 2025-09-03 | World Maritime Data Space http://wmds.cloud | Isaac González contacto@edme.cloud |
| urn:mrn:bem | 2026-08-28 | BM Bergmann Marine GmbH https://www.bergmann-marine.com/ | Michael Bergmann / Falk Bethke Michael.bergmann@bergmann-marine.com / falk.bethke@bergmann-marine.com |