Last updated
August 15, 2023
Terms of use
Open use. Must provide the source.


For each airport, a security zone is to be established, which protects the airspace from obstacles. The FOCA will decide in each case whether a safety zone is necessary for air navigation equipment and flight paths. Authoritative for the establishment of safety zones is the cadastre of obstacle limitation surfaces. The safety zones are represented in a zone map, where the location and height of property restrictions are shown. The approved security zone plans are binding upon publication in the cantonal publications and constitute a public property restriction.