Gisselfeld Forest District in 2004 was certified PEFC - Programme for the Endorsement of Forest Cerfification schemes Denmark.
This means the forests objective is to be sustainable and traceable. The certification also means that regular checks are carried out by external inspectors. This is to ensure that the standards are met. In connection with the certification some parts of the forest lays untouched in order to support a high level of biodiversity. These parts are especially selected from areas with high natural values such as lakes and streams.