Historical
NEMA WD 1-1999 (R2005, R2010)
General Color Requirements For Wiring Devices
This standard publication contains color references for AC switches, plugs and cord connectors, receptacles, and other related wiring devices. This standard does not cover dimensional requirements affecting wiring device interchangeability. These are found in NEMA Standards Publication No. ANSI/NEMA WD 6-1997.
NEMA: National Electrical Manufacturers Association [nema]