A foreigner or stateless person who marries a spouse of French nationality may, after a period of four years from the marriage, acquire French nationality by declaration provided that at the date of this declaration the community of life, both affective and material, has not ceased between the spouses since the marriage and that the French spouse has retained his or her nationality.
The period of community of life is extended to five years if the foreign national, at the time of the declaration, either does not prove that he or she has resided uninterruptedly and legally in France for at least three years since the marriage, or is unable to prove that his or her French spouse has been registered in the register of French nationals living outside France for the duration of their community of life abroad. In addition, the marriage celebrated abroad must have been previously transcribed onto French civil status registers.
The foreign spouse must also provide proof of sufficient knowledge, depending on their condition, of the French language, the level and assessment procedures for which are set by decree in the Conseil d’Etat.