In 1976, proclamation No. 50/76 gave the library the legal right to collect three copies of every material published in the country. In 1999, the library was reestablished by proclamation no. 179.1999 as a national institution, which resulted in structural changes and the mission to be one of the top five national libraries and archives in Africa by 2020. It is currently a unit of the Ministry of Culture and Tourism.
The archives was established in 1979, and its collection includes ancient and historical manuscripts written from as early as the 14th and 15th centuries. It started functioning with archives from the Ministry of the Grand Palace, Palace of the Crown Prince, and others. The archive includes letters written by several kings, empresses, and princes.