The allocation is described in UIC leaflet 920-8 available at https://shop.uic.org. UIC members can download the leaflet using their company specific user ID and password. Non-members can order the leaflet.
Number series
According to the leaflet the numbers are divided as follows:
From
To
Purpose
0001.00
4999.99
For domestic tariffs or tariffs with only one RU involved
5000.00
7999.99
For international tariffs with two RUs involved (bilateral tariffs)
8000.00
8199.99
For the OSJD for multilateral tariffs
8200.00
9999.99
For the UIC for multilateral tariffs
Code allocation
Tariff numbers between 8200.00 and 9999.99 are assigned by the UIC. Requests should be addressed to tariffs at uic.org and include at least:
Date of introduction (or abolition) of a tariff,
Railway undertakings involved
Self managed series
Railway undertakings may manage number series xxxx.00 to xxxx.99 for their specific multilateral tariffs.
We do not allocate Tariffs numbers for tariffs between two RUs. It is up to each RU with the partner RU to guarantee the uniqueness of the tariff number.