UIC Leaflet 930: Exchange of Data in International Freight Traffic
UIC Leaflet 930 defines the data exchange principles for international freight traffic. It serves as a regulatory framework for the electronic transmission of commercial and technical information between railway undertakings.

What is UIC Leaflet 930?
UIC Leaflet 930 is a foundational administrative and technical document titled “Exchange of data in international freight traffic.” Its primary function is to regulate how information regarding freight shipments is shared electronically across borders.
In the logistics chain, Interoperability is not just mechanical but also digital. UIC 930 ensures that when a freight train moves from one operator to another, the accompanying data—such as the Consignment Note, wagon characteristics, and cargo details—follows the physical train in real-time. This eliminates the need for manual paperwork at border stations.
Core Objectives of the Leaflet
The standard aims to harmonize Information Technology systems used by different national railways. Its core objectives include:
- Synchronization of Goods and Data: Ensuring that electronic data arrives at the destination or handover point before or at the same time as the physical train.
- Standardization of Content: Defining exactly which data fields must be included in an international shipment record (e.g., weight, dangerous goods codes, destination).
- Liability and Accuracy: Establishing the legal and technical responsibilities of the sending and receiving parties regarding the quality of the data transmitted.
Technical Formats: From EDI to XML
Historically, UIC 930 was built on EDI (Electronic Data Interchange) protocols. In recent years, it has transitioned toward XML Messaging to align with modern web-based architectures and the European TAF TSI (Telematics Applications for Freight) regulations.
Relationship with TAF TSI
For operations within the European Union, UIC Leaflet 930 acts as a supporting bridge to TAF TSI. While the TSI provides the mandatory legal requirement for digital data exchange, UIC 930 provides the practical “business rules” that railway undertakings use to implement these systems. It ensures that even non-EU members of the UIC can participate in the same digital logistics network.
Impact on Rail Logistics
Implementing UIC 930-compliant systems leads to several operational benefits:
- Reduced Dwell Times: Trains spend less time at borders because customs and technical data are pre-cleared digitally.
- Improved Tracking: Customers can receive real-time updates on the location and status of their cargo.
- Safety: Instant access to “Dangerous Goods” data allows emergency services to respond correctly in the event of an incident.
Comparison: Manual vs. UIC 930 Digital Interchange
| Process | Traditional Manual Method | UIC 930 Standardized Exchange |
|---|---|---|
| Documentation | Paper stacks (CIM, manifests). | Digital records / Paperless. |
| Border Transition | Physical hand-off of folders. | Automated system-to-system update. |
| Error Correction | Manual cross-checking; slow. | Automated validation/logic checks. |
| Visibility | Point-to-point via phone/fax. | End-to-end real-time monitoring. |





