Umbria Regional Law 20/05

This law aims to restrict light pollution and minimize energy consumption resulting from external lighting. The objective is to facilitate the advancement of scientific and public research conducted by both public and private astronomical observatories, while also enabling the appreciation of the starry sky as an integral element of the regional landscape heritage. For the purposes of this legislation, light pollution is defined as any artificial light radiation dispersed outside its designated functional areas or directed above the horizon line.