The IDS clearing centre is a system element within the tariff integration of various carriers, falling under different public transport purchasers – self-governing regions, cities, or the state.
The clearing centre ensures a fair settlement of revenue from the sale of common travel tickets between all carriers involved in the IDS according to a contractually defined key, agreed between public transport employers (self-governing regions as employers of commuter bus transport, cities as employers of public transport and the Ministry of Transport and Construction of the Slovak Republic as employers of railway passenger transport).