On the Montreux municipal website, find information about 'administrative procedures'. Specifically, locate details on how to declare a change of address. List the main steps or requirements mentioned for this procedure.
Navigate to 'https://www.montreux.ch/accueil' Click on the 'Démarches administratives' link. Locate the section or link related to 'Changement d'adresse' (Change of address). Extract the main steps or requirements for declaring a change of address.
Successfully navigate to the 'Démarches administratives' section. Identify and access the information for 'Changement d'adresse'. List the primary steps or requirements for declaring a change of address as presented on the website.