Geothermal Associations, Agencies, and Programs

International Ground Source Heat Pump Association (IGSHPA)
http://www.igshpa.okstate.edu/

GeoExchange (Geothermal Heat Pump Consortium)
http://www.geoexchange.org/

American Society of Heating, Refrigeration, and Air-Conditioning Engineers (ASHRAE)
http://www.ashrae.org/

Air Conditioning Contractors Association (ACCA)
http://www.acca.org/

Sheet Metal and Air Conditioning Contractor's National Association (SMACNA)
http://www.smacna.org/

American Society of Mechanical Engineers (ASME)
http://www.asme.org/

American Heating and Refrigeration Institute (AHRI)
http://www.ahrinet.org/

National Ground Water Association (NGWA)
http://www.ngwa.org/

Energy Star
http://www.energystar.gov/

Department of Energy
http://www.energy.gov/

American Institute of Architects (AIA)
http://www.aia.org/

US Green Building Council, Developer of LEED building rating system
http://www.usgbc.org/

International Organization for Standardization
http://www.iso.org/