The letter expresses ACEEE support for a national energy efficiency resource standard, and is signed by the following organizations: American Council for an Energy-Efficient Economy (ACEEE), Natural Resources Defense Council (NRDC), The International Association of Heat and Frost Insulators and Allied Workers (HFIAW), Union of Concerned Scientists (UCS), Alliance for Industrial Efficiency, Heat is Power Association, Midwest Cogeneration Association, Clean Air Task Force, National Wildlife Federation (NWF), Third Way Clean Energy, Center for Energy and Environment (CEE), Clean Energy Economy Minnesota, Fresh Energy, Sheet Metal and Air Conditioning Contractors National Association (SMACNA), Sierra Club, Building Performance Association, Conservation Law Foundation. National Association of Energy Service Companies (NAESCO), Voices for Progress, U.S. Green Building Council (USGBC), E4TheFuture, The Institute for Market Transformation (IMT), and Environmental and Energy Study Institute (EESI).
