The California Energy Commission (CEC) introduced new Outdoor Lighting Standards in 2005 to conserve energy and reduce electricity peak demand. The Outdoor Lighting Standards regulate lighting power, controls, and allowed lighting fixture types. Illuminated signs are also covered by the Standards.

This design brief aims to explain the 2005 Outdoor Lighting Standards and discuss some energy efficient compliance strategies. First, the design brief illustrates which lighting applications are regulated by the Standards, and which applications are not. Next, the brief describes applicable lighting technologies, such as controls and cutoff luminaires that are mandatory for certain outdoor lighting applications. Third, concepts such as Lighting Zones and power limits are introduced. The design brief next describes how the Outdoor Lighting Standards address alterations and additions as well as special security needs. Finally, the design brief takes a look at how signs are addressed by the new Standards.

By the end of this design brief, the reader should understand how to comply with the 2005 Title 24 Outdoor Lighting Standards through good outdoor lighting design.