A Movement Reference Number (MRN) is a unique, 18-digit customs ID generated for every import/export shipment. It tracks the status and location of goods as they travel internationally. Through MRN Follow-up, businesses and customs officers can track the journey of a shipment from first departure to its destination.
The service also features the Transit Movements Electronic Map, which shows the number of transit movements in a particular time period.
See: Frequently asked questions on MRN
For more on the export of goods out of the EU, see: Automated Export System.
For more on goods in transit in the EU and Common Transit Convention (CTC) countries, see: New Computerised Transit System.