Identifying Europe’s Trains: UIC Leaflet 545 on Rolling Stock Documentation Explained
UIC Leaflet 545 defines identification and documentation standards for railway vehicles, ensuring traceability, safety, and interoperability across European networks.

What Is UIC Leaflet 545?
UIC Leaflet 545 is a standard developed by the International Union of Railways (UIC) that specifies identification, numbering, and documentation requirements for railway vehicles.
It ensures traceability, interoperability, and operational safety across European networks.
Importance of UIC Leaflet 545
Proper identification and documentation of rolling stock are essential for operational safety, maintenance management, and cross-border interoperability.
UIC 545 standardizes vehicle numbers, marking procedures, and related documentation for both freight and passenger vehicles.
- Specifies numbering and marking conventions
- Defines required documentation for each vehicle
- Supports traceability and maintenance planning
- Ensures interoperability in international rail traffic
Scope and Technical Coverage
UIC 545 applies to all types of railway vehicles, including freight wagons, passenger coaches, locomotives, and specialized rolling stock.
It harmonizes identification practices across different countries and operators.
- Vehicle numbering system and format
- Permanent markings and labeling requirements
- Documentation associated with registration and ownership
- Integration with vehicle approval and certification procedures
- Cross-border interoperability requirements
Key Technical Parameters
| Parameter | Description | Operational Impact |
|---|---|---|
| Vehicle Number | Unique UIC-compliant identifier for each vehicle | Enables traceability and interoperability across networks |
| Marking and Labeling | Permanent visual identification on wagons/coaches | Supports operational recognition and maintenance planning |
| Documentation | Records of registration, ownership, and technical data | Facilitates safety checks, inspections, and compliance audits |
| Cross-border Compliance | Adherence to international interoperability rules | Ensures vehicles can operate legally across European railways |
Relationship with Other Standards
UIC 545 complements EN 12561, UIC 571-2, and other rolling stock standards by providing identification and documentation guidelines.
It ensures that vehicles conforming to technical and operational standards are correctly tracked and registered.
- Supports compliance with EN 12561 dimensions and interoperability rules
- Integrates with UIC 571-2 and 450-2 technical requirements
- Facilitates cross-border vehicle approvals and registration
Who Uses UIC Leaflet 545?
The leaflet is used by railway operators, infrastructure managers, rolling stock manufacturers, and certification authorities to ensure proper identification, registration, and traceability of vehicles.
- Rolling stock manufacturers and maintenance providers
- Railway undertakings and operators
- Certification and approval authorities
- Infrastructure managers and logistics coordinators





