Via France24:
Foreigners seeking French nationality face tougher requirements as of January 1, when new rules drawn up by Interior Minister Claude Guéant come into force.
Candidates will be tested on French culture and history, and will have to prove their French language skills are equivalent to those of a 15-year-old mother tongue speaker. They will also be required to sign a new charter establishing their rights and responsibilities.
“Becoming French is not a mere administrative step. It is a decision that requires a lot of thought”, reads the charter, drafted by France’s High Council for Integration (HCI). In a more obscure passage, the charter suggests that by taking on French citizenship, “applicants will no longer be able to claim allegiance to another country while on French soil”, although dual
nationality will still be allowed.
(source)
