The sole trader may, at the written request of a creditor, waive the derogation provided for in the fourth paragraph of Article L. 526-22, for a specific undertaking for which he must state the term and the amount, which must be determined or determinable. This waiver must comply, on pain of nullity, with the forms prescribed by decree.
This waiver may not take place before the expiry of a cooling-off period of seven clear days from receipt of the request for waiver. If the sole trader prefaces his signature with the handwritten note set out by decree, and only with that handwritten note, the cooling-off period is reduced to three clear days.