本照明实践（LP）文件概述了外部照明的环境注意事项，尤其是与眩光、夜光、光线侵入以及夜间电灯对动植物的影响有关的环境注意事项。此外，本LP提供了有关如何分配照明区域的信息，以及如何使用《联合IDAIES模型照明条例》（MLO）和《用户指南》作为外部照明条例的基础。最后，本LP讨论了基于社区的设计，并提出了户外照明的具体建议。

This Lighting Practice (LP) document outlines the environmental considerations of exterior lighting, especially as related to glare, sky glow, light trespass and the impact of electric light at night on flora and fauna. In addition, this LP provides information on how to assign lighting zones, and how to use theJoint IDAIES Model Lighting Ordinance (MLO) with User's Guide, as a basis for an exterior lighting ordinance. Finally, this LP discusses community-based design and makes specific recommendations for lighting outdoor areas.