Any modification likely to affect the safety of a ski lift or conveyor belt must be declared to the prefect at least one month before it is implemented. To this end, the project owner must send the Prefect a file describing the planned modification and including, where applicable, the safety report provided for in Article 8 of Regulation (EU) 2016/424 of the European Parliament and of the Council of 9 March 2016 on cableway installations and repealing Directive 2000/9/EC as amended.
If, on the basis of the dossier submitted, it emerges that the planned modification significantly alters the main characteristics of the installation, its location and the nature of the works or its transport capacity, the Prefect may, within a period not exceeding one month, submit it for the authorisation provided for in Article L. 472-1 of the Planning Code.