Article R2192-24 of the French Public procurement code
In the event of payment of an advance pursuant to article R. 2191-3, the time limit for payment of the advance shall run from: 1° either the date of notification of the contract; 2° or, where the contract so provides, the date of notification of the act which entails commencement of performance of the services corresponding to the advance. In other cases, the payment period runs from the date on…