Article R331-23 of the French Sports Code
The declaration of a meeting must be made to the prefect of the département where the meeting is to be held or to the police prefect if the meeting is to take place on the airfields of Paris-Charles de Gaulle, Paris-Le Bourget and Paris-Orly. If the event takes place in more than one département, the declaration must be sent simultaneously to the prefect of each département and also to the…