Rates drawn up by the operators of auction rooms, in order to fix the remuneration due for storage, handling, room hire, sales and generally for the various services that may be rendered to the public, shall be sent before the opening of the establishments, to the prefect and the territorial chamber of commerce and industry and the commercial court consulted on the application for authorisation.
All changes to rates must be announced in advance by posters and communicated to the prefects and to the territorial chamber of commerce and industry and the commercial court consulted on the application for authorisation. If the purpose of these changes is to increase tariffs, they do not become enforceable until three months after they have been announced and communicated.