The Prefect may, on his own initiative on a proposal from the Director General of the Regional Health Agency or at the request of the authorisation holder and in accordance with the procedure laid down in I of article R. 1321-7, issue an order amending the authorisation order, if he considers that the maintenance of certain provisions is no longer justified or that additional requirements are necessary in order to ensure the safety of the water distributed.
Before issuing a decision, the Prefect may require the licence holder, by means of a reasoned decision, to supply or update the information contained in the application file and to produce additional operating reports. These measures are at the authorisation holder’s expense.