The Building Performance Institute, Inc., (BPI) is the nation's premier building performance credentialing, quality assurance and standards setting organization. BPI develops technical standards using an open, transparent, consensus-based process built on sound building science. BPI is approved by the American National Standards Institute, Inc. (ANSI) as an accredited developer of American National Standards.BPI offers the following:• National standards to ensure top quality, consistent protocols are being followed throughout the home performance and weatherization workforce• Certification of individuals in building analyst, heating, AC/heat pump, shell/envelope and multi-family designations • Accreditation of contracting companies committed to delivering quality home performance improvements • Quality assurance to verify conformance with BPI Standards and provide feedback for continuing improvement • Partnerships with testing organizations that deliver BPI services in their market