ASHRAE 90.1-2001

Section: 9.2.1.3 - Exterior Lighting Control

Toolbox

Lighting for all exterior applications not exempted in 9.1 and 9.3.2 shall be controlled by a photosensor or astronomical time switch that is capable of automatically turning off the exterior lighting when sufficient daylight is available or the lighting is not required.

Exceptions:

Lighting for covered vehicle entrances or exits from buildings or parking structures where required for safety, security, or eye adaptation.