Light Pollution Organizations

StarLight Universe -
International Initiative in Defence of the Quality of the Night Sky as Mankind’s Scientific, Cultural and Environmental Heritage

http://www.starlight2007.net/

International Dark-Sky Association (IDA)

http://www.darksky.org/

International Astronomical Union (IAU) Commission B7 (Protection of Existing and Potential Observatory Sites)

https://www.iau.org/science/scientific_bodies/commissions/B7/info/

The Light Pollution Science and Technology Institute Laboratory (ISTIL) of Photometry and Radiometry of Light Pollution (LPLAB)

http://www.inquinamentoluminoso.it/istil/istil_laboratory.html

lightpollution.it

http://www.lightpollution.it/