ANSI/ANSLG C82.9-2010

American National Standard for Lamp Ballasts-High-Intensity Discharge and Low-Pressure Sodium Lamps-Definitions
standard by American National Standards Institute / American National Standard Lighting Group, 08/25/2010

ANSI/ANSLG C82.9-1996

American National Standard for High-Intensity Discharge (HID) and Low-Pressure Sodium (LPS) Lamps, Ballasts and Transformers – Definitions
standard by American National Standards Institute / American National Standard Lighting Group, 01/01/1996