This standard provides guidance for the safe use of lasers in an outdoor environment. It covers product performance of lasers used outdoors including those that have been granted a variance or exemption from the provisions of the Federal Laser Product Performance Standard (21 CFR 1040).  Products and applications covered: include Laser Light Shows, Military Lasers, Lasers used for outdoor scientific research and Wireless optical communications systems deployed outdoors. The standard also covers possible indirect hazards such as visual interference at night to pilots during take-off and landing.