Article R3111-27 of the French Public Health Code
A claim for compensation for damage considered to be attributable to a compulsory vaccination must be sent to the Office national d’indemnisation des accidents médicaux, des affections iatrogènes et des infections nosocomiales (National Office for Compensation for Medical Accidents, Iatrogenic Diseases and Nosocomial Infections) referred to in article L. 1142-22, by registered letter with acknowledgement of receipt, or lodged with the secretariat of the Office in return for a receipt….