Article R621-37 of the French Monetary and Financial Code
When the Secretary General proposes that the Board implement the procedure provided for in II of Article L. 621-14, he shall first inform the person concerned, by registered letter with acknowledgement of receipt, by hand-delivery against receipt or by bailiff’s deed or by any other means that enables the date of receipt to be ascertained, of the practices that appear to him to be likely to be contrary to legislative…