Article D224-46 of the French Consumer Code
Manufacturers, importers and distributors of production shell seats shall ensure the availability of spare parts, in particular those listed as follows, for a minimum period of five years from the date on which the last unit of the model concerned was placed on the national market: a) Backrests, including cervico-cephalic supports and thoraco-lumbar supports; b) Leg rests; c) Foot rests; d) Leg rest cushions; e) Wheels; f) Brakes; g) Harnesses….