[en] One of NILU's main goals is to study the impact of pollution. It is thus very important for the institute to have control of the impact the institute's own activities may have on the environment and to reduce the impact as far as possible. NILU has for many years been working to reduce the impact. In order to take this one step further, it was decided that the institute should restructure the work according to a relevant environmental standard and to seek certification according to the same standard. The chosen standard is ISO 14001:2004 (Environmental management systems: Requirements with guidance for use) and NILU achieved certification according to this standard in October 2010.(Author)