Oficialūs aprašymai pateikiami originalo kalba (anglų).
This class includes: - operation of nature reserves, including wildlife preservation, etc. - conservation and maintenance services of national parks, nature parks and reserves
This class excludes: - protection or restoring activities of agricultural land, see division 01 - protection or restoring activities of forestry land, see division 02 - protection or restoring activities of landscape (e.g. for parks, gardens), see 81.30 - operation of sport fishing and hunting preserves, see 93.19