Any change relating to the items listed in article R. 1121-12 requires a new authorisation to be issued, which must be the subject of a complete application in the forms provided for in article R. 1121-12, accompanied by the appropriate supporting documents. If the administration remains silent for more than two months from the date of receipt of the new application, it is deemed to have granted authorisation, unless this period is suspended by the administrative authority before the end of this period.