Les Archives nationales (national archives) conserve archives of the state central administrations, notaries acts and a national interest document base. Conservation and communication are located on 3 sites:
- Paris: public archives of the French Old Regime, Parisian notaries acts.
- Pierrefitte-sur-Seine: public archives from the French Revolution up to the present, document base (all periods)
- Fontainebleau: specific private document base (naturalization files from 1930, all civil servant careers files from 1960.