Peter Zehntner is the official Swiss CEN-delegate for horizontal road signs. Among others this includes active membership of working groups and expert panels. Moreover, he is a member of the following institutions:
American Society for Testing and Materials
European Committee for Standardization
German Research Association for Surface Treatment
German Institute for Standardization
German Society for Road Marking Research
Road and Transportation Research Association
Swiss Professional Federation for Road Safety
Swiss Association of Varnish and Paint Chemists
Swiss Association of Road and Transportation Experts
