The official language in administration shall be Slovene.

In municipal areas with original Italian and Hungarian ethnic communities the second official language shall be Italian and Hungarian, respectively. In these areas the administration shall carry out operations, conduct proceedings and issue legal and other acts in Slovene or in the language of the ethnic community, if the party residing in such an area should speak Italian or Hungarian, as the case may be.

Where in the initial stage the administrative body has conducted proceedings in Italian or Hungarian, as the case may be, any second stage decision shall be issued in the same language.

A person who has not mastered the official language shall be familiarised with the material and its operations by the administrative body concerned, and provided with an interpreter in order to follow the proceedings.

Source: Report submitted by the Republic of Slovenia pursuant to Art. 25 Para. 1 of the Framework Convention for the Protection of National Minorities
http://www.humanrights.coe.int/minorities/Eng/FrameworkConvention/StateReports/2000/slovenia/slovenia.html#annex2