After 1859 Union, the library has reach the national statute (Bibliotecă Naţională şi Bibliotecă Centrală - National and Central library) In 1864 the library was named Central Library of the State (Biblioteca Centrală a Statului).
Μετά το 1859, η βιβλιοθήκη διαθέτει εθνικό καταστατικό (Bibliotecă Naţională şi Bibliotecă Centrală - Εθνική και Κεντρική βιβλιοθήκη) ενώ το 1864 η βιβλιοθήκη ονομάστηκε Κεντρική Βιβλιοθήκη του Κράτους (Biblioteca Centrală a Statului).