Due to a high volume of applications, initial and comprehensive review timeframes are currently extended by 10 days each for SSL, LUNA, and Hort applications. Click here for more details about SSL application review timeframes, and here for more details about Hort review timeframes. Thank you for your understanding!

Understanding Unified Glare Rating (UGR)

This resource contains general information about UGR, discusses why the DLC requires UGR for Premium qualification, explains how the DLC evaluates UGR, and provides guidance for modeling luminous area.