In land use zones according to Articles 14 ff. of the Spatial Planning Act of 22 June 197954, the following sensitivity levels apply:
sensitivity level I in zones with higher noise abatement requirements, notably in leisure zones;
sensitivity level II in zones in which operations that emit noise are not permitted, notably in residential zones and zones for public buildings and installations;
sensitivity level III in zones in which operations emitting a certain level of noise are permitted, notably in residential and industrial zones (mixed zones) and agricultural zones;
sensitivity level IV in zones in which operations emitting a high level of noise are permitted, notably in industrial zones.
Parts of land use zones rated as sensitivity levels I or II may be assigned the next higher level if they are already exposed to noise.