"This standards publication provides a procedure for the determination of the Target Efficacy Rating (TER) for luminaires under laboratory test conditions. This standard describes categories or types of product used in common indoor and outdoor lighting applications. This standard does not apply to luminaires for specialized applications@ including but not limited to products intended to be aimed@ accent luminaires@ rough or hazardous use luminaires@ or emergency lighting. Purpose The purpose of this standards publication is to: a) provide the lighting design community and procurement officials with a practical and uniform method for calculating a metric to evaluate and compare the ""energy effectiveness"" of luminaires. b) provide the ability for construction or renovations focused on sustainable design to evaluate the energy performance of luminaires. c) provide electrical utility companies with a method to establish performance criteria for luminaires for use with energy savings rebate programs. d) provide a methodology for luminaires that considers all components of the luminaire@ as well as the effectiveness of the luminaire optics@ to deliver light to an intended task. e) define categories for types of luminaire products based on function@ physical or dimensional attributes@ and optical characteristics of luminaires to enable qualified energy comparisons within a category of product. f) preserve for luminaire manufacturers and the lighting industry the right to use laboratory facilities@ testing methods@ and completed test data that currently exist and are in accordance with approved industry standards."