Article L213-1 of the French Code of civil enforcement procedures
Any creditor of maintenance may have the amount of such maintenance paid directly to him by third parties who owe him sums of money that are due and payable to him. In particular, he may exercise this right in the hands of any debtor of sums due by way of remuneration, as well as any depositary of funds. An application for direct payment is admissible as soon as a maintenance…