Lasers are frequently used in an outdoor setting. Guidance is provided in t
his new draft American National Standard for this use. Unlike lasers used i
ndoors, the user does not have complete control of the space encompassing t
he entire laser beam since light beams continue until they are stopped by a
n opaque object. The draft standard discusses proper coordination with loca
l and Federal authorities so that lasers can be used outdoors in a safe man
ner. The development of the standard was prompted to satisfy both the need
by the Department of Defense for a consensus standard, and the need to reso
lve safety conflicts between the laser light show industry and pilots who w
ould occasionally fly through a demonstration laser beam. The standard has
been under development for the past 4 years and publication may be as soon
as this year. (C) 1999 Laser Institute of America. [S1042-346X(99)00705-6].