The Federal Office for the Environment FOEN (Switzerland) is the federal government’s centre of environmental expertise and is part of the Federal Department of the Environment, Transport, Energy and Communication DETEC.

The mission of the Federal Office is to ensure the sustainable use of natural resources including soil, water, air, quietness and forests. It is responsible for the protection against natural hazards, safeguarding the environment and human health against excessive impacts, and conserving biodiversity and landscape quality. It is also responsible for international environmental policy.