To learn more about the LEED program, visit

To become involved in a technical committee on sustainable lighting or light pollution issues, contact the International Commission on Illumination, at, or Illuminating Engineering Society of North America, at

Information about the dark sky movement and International Dark-Sky Association is available at Free resources include educational materials, information sheets, and the Lighting Code Handbook-a guide to issues relative to outdoor lighting codes, their effectiveness, implementation, and enforcement.