Autonomous Community of Catalonia

The object of this Law is the regulation of exterior and interior lighting installations and devices, with regard to the light pollution they may produce. The purposes of this Law are: a) Maintain the natural conditions of the night hours as much as possible, for the benefit of fauna, flora and ecosystems, in general; b) Promote the energy efficiency of exterior and interior lighting through energy savings, without reducing security; c) Avoid light intrusion into the domestic environment and, in any case, minimize its inconvenience and damage; d) Prevent and correct the effects of light pollution on the vision of the sky.