The authorised, standard version of the UDC, known as the "UDC Master Reference File", is distributed in English. This file is updated once a year and can be obtained from the UDC Consortium under a MRF user licence. UDC schedules in other languages such as Spanish, French, Russian etc. are published by licensed publishers in their respective countries.

You can check whether an edition exists in a language other than English by consulting the list of UDC editions or by checking publications available from UDC licensed publishers.