Maritime Resource Name Registry

Welcome to the Maritime Resource Name Registry hosted by IALA. This page provides up to date information about Maritime Resource Names and the usage of them within the maritime industry.

We are currently in the process of standardizing MRN and we expect this to be finalized sometime in 2017.

We welcome comments and contributions either by signing up to our discussion group at!forum/mrn-discuss or by emailing us directly at

What is Maritime Resource Names

Maritime Resource Names (MRN) is a naming scheme that can uniquely identify any maritime resource on a global scale. By maritime resource we basically mean 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.

Our original paper was presented at the 17th IALA Conference.

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 We will then get back to you with more details.

A list of all assigned Organization IDs can be found here.

Management of MRNs

We expect to present a paper about about how to manage namespaces within organizations in a consistent manner at Enav21. This will also include guidelines and best practices for developing organization specific namespaces.

Who is using it

We are currently getting some experience using MRNs in the following projects

Who What For For identification of users, organizations and services For identification of organizations, services and voyages For identification of users                    Vessel Shore Reporting Service Identifiers utilized within S-100 product specifications

Readers may send feedback about errors, omissions, and ambiguities on this page to