Article R1331-76 of the French Public Health Code
After any accident or disaster, in particular a chimney fire, or after any work has been carried out, the use of the flues and appliances connected to them is prohibited until they have been repaired or replaced. The customer mentioned in article R. 1331-21 shall have them examined by an installer, or any other person qualified in accordance with article R. 1331-22, who shall draw up a certificate. If they…