Blueprint of Freight Wagons: UIC Leaflet 571-2 Explained
UIC Leaflet 571-2 specifies technical requirements for freight wagons, including dimensions, axle load, and interoperability rules for safe European rail operation.

What Is UIC Leaflet 571-2?
UIC Leaflet 571-2 is a standard developed by the International Union of Railways (UIC) that defines technical requirements for freight wagons.
It specifies dimensions, axle load limits, running gear, and interoperability criteria to ensure safe and efficient operation across European networks.
Importance of UIC Leaflet 571-2
The leaflet ensures that freight wagons built under UIC rules can operate reliably across different countries.
By harmonizing technical criteria, it reduces operational conflicts, prevents infrastructure damage, and facilitates international wagon traffic.
- Sets dimensional and gauge limits for wagons
- Specifies axle load and weight distribution
- Ensures compatibility with coupling and braking systems
- Supports cross-border interoperability
Scope and Technical Coverage
UIC Leaflet 571-2 covers the main structural and functional aspects of freight wagons. It complements other UIC leaflets and European standards like EN 12561.
- Overall dimensions and gauge profiles
- Axle load and wheelset specifications
- Running gear and suspension requirements
- Brake system compatibility
- Identification marks and documentation
Key Technical Parameters
| Parameter | Description | Operational Impact |
|---|---|---|
| Axle Load | Maximum permissible weight per axle | Protects infrastructure and ensures track compatibility |
| Gauge and Clearance | Defines the allowed wagon width and height | Enables safe passage through tunnels, bridges, and platforms |
| Coupling System | Specifies standardized coupling interfaces | Ensures reliable train assembly and operational safety |
| Running Gear | Wheelset, suspension, and axle specifications | Determines ride quality and reduces track wear |
Relationship with Other Standards
UIC Leaflet 571-2 works in conjunction with EN 12561 and Freight Wagon TSI standards. It provides detailed technical guidance for wagon design, while TSI and EN standards define high-level interoperability and safety requirements.
- Supports compliance with EN 12561 technical rules
- Aligns with European TSI Freight Wagon specifications
- Provides guidance for cross-border wagon approvals
Who Uses UIC Leaflet 571-2?
The leaflet is used by freight wagon manufacturers, railway undertakings, infrastructure managers, and certification bodies to ensure wagons meet European operational and safety requirements.
- Wagon manufacturers and designers
- Railway operators and leasing companies
- Notified bodies and approval authorities
- Maintenance and testing organizations





