A French visa refusal is not final, as applicants have a mandatory 30-day window to file an administrative appeal. The correct authority depends on the visa type: short-stay Schengen visas are handled by the deputy director of visas at the Interior Ministry, while long-stay visas must be appealed to the Commission for Appeals against Visa Refusal Decisions (CRRV) in Nantes. Appeals must be sent via registered mail, supported by documents like passports, proof of funds, and accommodation details. The administration has a two-month period to reply; silence from their side is legally considered a rejection. This administrative step is a required precursor before any potential litigation at the administrative court in Nantes.