Article R3123-12 of the French General Code of Local Authorities
Any member of a departmental council who is an employee must, where he wishes to take the training leave referred to in article L. 3123-11, submit his request in writing to his employer at least thirty days in advance, specifying the date and duration of the planned absence, as well as the name of the organisation responsible for the course or session. The employer shall acknowledge receipt of this request….