Article L131-20 of the French Monetary and Financial Code
Endorsement transfers all rights arising from the cheque, in particular ownership of the funds. If the endorsement is blank, the bearer may: 1. fill in the blank, either with his or her name or with the name of another person ; 2. Endorse the cheque again in blank, or to another person; 3. give the cheque to a third party without filling in the blank or endorsing it.