Article R3244-2 of the French Labour Code
Collective agreements or, failing that, decrees by the Conseil d’Etat issued after consultation with the employers’ and employees’ organisations concerned, determine by profession or by professional category, nationally or regionally: 1° The methods of justification to be borne by the employer; 2° The categories of personnel who take part in the distribution of tips; 3° The methods of this distribution.