Other regulations may also apply
For example, the import of most alien organisms in fertilising products requires a permit under the Regulation of 19 June 2015 No. 716 on alien organisms.
Mycorrhiza is an example of an organisms that need approval. The regulation is administered by the Norwegian Environment Agency.
For questions related to ammonium nitrate and detonation tests contact the Directorate for Civil Protection (dsb.no).
For questions related to alien species, waste status, REACH, and CLP contact the Norwegian Environment Agency (miljodirektoratet.no).