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Illuminating Engineering Society (IES)
Imperial Lighting Maintenance Company
InterNational Association of Lighting Management Companies (NALMCO)
International Brotherhood of Electrical Workers (IBEW)
International Dark-Sky Association (IDA)
Lighting Controls Association
Lutron Electronics Company, Inc.
National Electrical Contractors Association (NECA)
National Electrical Manufacturers Association (NEMA)
OSRAM SYLVANIA, Inc.
U.S. General Services Administration