Article R1311-11 of the French Public Health Code
It is forbidden to perform the techniques mentioned in articles R. 1311-1 and R. 1311-6 on a minor without the written consent of a person with parental authority or their guardian. Persons carrying out these practices on a minor must be able, for a period of three years, to present proof of this consent to the supervisory authorities mentioned in article L. 1312-1.