Article 21-28 of the French Civil Code
The representative of the State in the department or, in Paris, the police prefect organises, within six months of acquiring French nationality, a ceremony to welcome into French citizenship for the persons residing in the department referred to in articles 21-2, 21-11, 21-12, 21-13-1, 21-13-2, 21-14, 21-14-1, 21-15, 24-1, 24-2 and 32-4 of this code as well as to Article 2 of Act no. 64-1328 of 26 December 1964 authorising…