National Documentation Centre (EKT), is, by law (1566/1985), the competent authority for the development and maintenance of the National Archive of Ph.D. Theses, instituted in 1985 and operated by EKT since then. NA.Ph.D. collects, in digital form, doctoral dissertations awarded by Higher Education Institutions (HEIs) in Greece as well as Ph.D. Theses awarded to Greek scholars by foreign HEIs and certified by the Hellenic N.A.R.I.C.

Classification based on the scientific fields of NA.Ph.D. is a criterion for certain procedures of the Hellenic Supreme Council for Civil Personnel Selection (ASEP), according to the provisions of Law 4765 GG A' 6/15.1.2021.