Lighting for Exterior Environments (PR-33-99) produced by the Illuminating Engineering Society of North America. Available from their website www.iesna.org or by calling 212-248-5000. Cost is around $45.

The California Chapter of the International Dark Sky Association provides suggested lighting ordinances along with examples of what to do and what not to do. www.skykeepers.org/index.html.

The National Equipment Manufacturers Association (NEMA) has issued a white paper on outdoor lighting and how to avoid common problems. The paper is available at www.nema.org.

The Advanced Lighting Guidelines report from the New Buildings Institute is available at: www.newbuildings.org/lighting.htm.