Cargo transported by railway and road may be classified according to the United Nations Economic Commission for Europe–Codes for Passengers, Types of Cargo, Packages and Packaging Materials (Recommendation 21, 1986-Revision 11, 2020). The cargo classes are:
- Liquid bulk;
- Solid bulk;
- Large freight container;
- Other freight container;
- Palletized goods;
- Pre-slung goods;
- Mobile, self-propelled units;
- Other mobile units;
- Other cargo types.