Delimitations of documents
The process of delimitation of the documents from the state institutions of the Slovak Republic – the Ministry of Interior of the Slovak Republic, the Ministry of Defence of the Slovak Republic, and the Slovak Information Service began in September 2003, whereas the second phase was carried out at the beginning of the year 2011. During the delimitations, the ÚPN took over funds of central and territorial State Security units, containing documents of the Intelligence service and Military Counterintelligence, as well as funds of the Border Patrol and the State Border Protection.
The issue of delimitation of the documents from the State institutions of the Slovak Republic (the Ministry of Interior of the Slovak Republic, the Ministry of Justice of the Slovak Republic, and the Ministry of Defence of the Slovak Republic) was reopened in 2021. Within the delimitations, the ÚPN took over funds of the former security forces of the Slovak Republic (1939-1945), documents related to the process of compensation and rehabilitation of citizens after 1989, and other personal files of the State Security members. The process of delimitation of personal files and personal documents of the State Security members has not been finished, yet.
Inventory of the archived documents
Entering archival documents in an inventory has been ongoing since 2004. The Archive of the Nation’s Memory Institute has begun a systematic inventorying based on the chosen chronological-organizational structure in 2011.

The ÚPN administers 495 archival funds and collections (2195 RM).

The fund structure of the Archive of the Nation’s Memory Institute contains:
1. Funds of the security forces of the Slovak Republic (1939-1989) – the Central Bureau of the State Security, funds of the Hlinka’s Guard units;
2. Funds of the security forces of the CSR (CSSR) (1945-1989) – funds of central and territorial units of the Federal Ministry of Interior of the National Security Corps and its predecessors;
3. Funds of the Border Patrol and the State Border Protection;
4. Funds of the Military Counterintelligence and Military Defence Intelligence;
5. Funds of labour and prison camps;
6. Funds of organisations of the Communist Party of Slovakia;
7. Individual funds (persecuted citizens, functionaries of the Communist Party of Slovakia);
8. Collections:
a) Personal files and personal documents of State Security members (National Security Corps);
b) Documents related to the process of compensation and rehabilitation of citizens after 1989;
c) Various collections (e.g. collection of stamps and seals, collection of keys from the conspiracy apartments);
d) Periodicals issued by the Central Committee of the Communist Party of Slovakia;
9. Historical library of the Marxism-Leninism Institute of the Central Committee of the Communist Party of Slovakia.

Disclosure of documents
Disclosure of archival documents for study purposes of both professionals and the public is carried out according to Act on Archives and Registries via the research room of the Archive. It is an on-the-spot study referring to scientific, media or private purposes.
Documents are to be disclosed also according to the Nation’s Memory Act. In such case, the authorised person shall receive a certified copy of the file.
Based on the purpose of disclosure, the personal and specialised personal data shall be made anonymous in the copy as stipulated in Act on Personal Data Protection.