By current legislative standards the Historic Archive of the National Gallery of Modern Art is a permanent structure which collects, inventories and conserves original and unique documents which testify to the certainty of rights acquired and to the life of the institute itself.
An arc of time lasting forty years from today is the parameter by which the documentation preserved takes on an historic character. The Gallery is the subject of production going back to 1881, the date of its founding (regal decree of 12 May, 1881).
The documentary production of the Gallery is comprised of institutional acts, regulations, memos, activities connected to exhibition events (permanent and temporary), relations with artists and museums, construction projects and successive modifications and integrations of the museums' centers, expenditure and budget plans.
Along with its documentation and conservation functions the Historic Archive assures the availability of the archive material in its possession, rendering it usable for study and research.