French nationality may be claimed at the age of majority, by declaration made to the administrative authority pursuant to articles 26 to 26-5, persons who have been habitually resident on French territory since the age of six, if they have received their compulsory education in France in educational establishments subject to State control, if they have a brother or sister who has acquired French nationality pursuant to articles 21-7 ou 21-11.
Article 21-4 is applicable to declarations filed pursuant to the first paragraph of this article.