Oficialūs aprašymai pateikiami originalo kalba (anglų).
This class includes: - preparation of sewage sludge for land treatment resulting in benefits to agriculture or ecological improvement - preparation of non-hazardous waste for reclamation in excavated areas or for engineering purposes in landscaping
This class excludes: - production of biogas from sewage sludge, see 35.21 - back-filling without related preparation activities (e.g. preparation of non-hazardous waste for engineering purposes in landscaping), see division 42