• ACI

    Founded as the Affordable Comfort Conference in 1986, ACI is a nonprofit organization that hosts national and regional conferences and other training programs covering home performance issues and building science.

  • Building Performance Institute

    A nonprofit organization that develops technical standards for home performance and weatherization, BPI also offers training and professional certification in several disciplines.

  • Efficiency First

    This trade association represents product manufacturers and home performance businesses and organizations in state and national public policy discussions.

  • Home Star program [PDF]

    Read a draft of the Home Star energy retrofit legislation, which is attached to a jobs bill currently making its way through Congress. The program, sometimes referred to as “cash for caulkers,” would provide incentives for improvements such as adding insulation, sealing air leaks, and replacing light bulbs.

  • Residential Energy Services Network

    A nonprofit organization founded in 1995 to develop a national market for home energy rating systems and energy efficient mortgages. RESNET developed the home energy rating system (HERS) and provides several certifications to building performance professionals.