Arrêté 27/12/2018

The French government, with the law decree of 27 December 2018, has adopted a legislative provision for the reduction and limitation of light pollution, aimed at night skies preservation, intrusive light limitation, protection of biodiversity and increase of energy savings. These goals are reached through the regulation of four features of lighting fixtures and systems, which are: ULR (Uplight Lighting Ratio), CIE flux code n°3, colour temperature and light flux density.
In addition, specific requirements are prescribed for astronomical observation areas, national parks and nature reserves.