The Regional Archives of Nova Gorica collects and keeps records and archives of organisations and institutions of local and regional interest. Its remit includes the following state administrative units (territorial divisions other than municipalities used in state governance): Ajdovščina, Nova Gorica and Tolmin.

The Archives house 917 records and collections, corresponding to approximately 2,300 linear metres of material. For each record and collection the Guidebook supplies the current number of the record/collection, the name of the record and collection, the date of validity of the material, the quantity of assisting devices for the usage of the material, data related to the institute or office where the material originated, a short survey of the contents of the material and (unless it is exclusively Slovene) the language of the records/collection. Records are displayed in the following main categories: Public Administration up to 1945 (1947), Public Administration after 1945 (1943), Justice, Economy and Banking, Education and Schooling, Culture and Science, Health and Social Security, Political Parties and Socio-political Organisations, Associations, Land Properties, Personal and Family Records, and Archival Collections. In order to permit a better orientation through the material, the Guidebook (available at http://www.pa-ng/vodnik/index2.htm) contains a table of contents, ie an index of records and collections. Each single group of records and collections is accompanied by photographs of the most prominent recorded documents. Photographs of the Archives building, its premises and staff represent an integral part of the Guidebook. Slovene archive-related researches are undertaken in Gorizia, Trieste, Čedad/Cividale and Rome.

The Regional Archives of Nova Gorica incorporate a library with a collection of around 5,100 titles. Exhibition space is also available in the 116 square metre cellar gallery.