ARCNET Trade Association
Website: http://www.arcnet.com/

AREMA Secretariat
Website: http://www.arema.com.au/

Air Conditioning and Refrigeration Wholesalers International (ARWI)
Website: http://www.arwi.org/

Air Movement and Control Association International, Inc. (AMCA)
Website: http://www.amca.org/

Air-Conditioning Contractors of America (ACCA)
Website: http://www.acca.org/

Alliance to Save Energy (ASE)
Website: http://www.ase.org/

American Conference of Governmental Industrial Hygienists (ACGIH)
Website: http://www.acgih.org/

American Gas Association
Website: http://www.aga.org/

American Industrial Hygiene Association (AIHA)
Website: http://www.aiha.org/

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

American National Standards Institute (ANSI)
Website: http://www.ansi.org/

American Petroleum Institute
Website: http://www.api.org/

American Public Power Association (APPA)
Website: http://www.appanet.org/

American Society of Association Executives (ASAE)
Website: http://www.asaenet.org/

American Society of Civil Engineers (ASCE)
Website: http://www.asce.org/

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

American Society of Plumbing Engineers (ASPE)
Website: http://www.aspe.org/

American Solar Energy Society (ASES)
Website: http://www.ases.org/

American Subcontractors' Association, Inc. (ASA)
Website: http://www.asaonline.com/

Architectural Engineering Institute (AEI)
Website: http://www.aeinstitute.org/

Association of Energy Engineers (AEE)
Website: http://www.aeecenter.org/

Association of Energy Services Professionals International
Website: http://www.aesp.org/

Association of Higher Education Facilities Officers
Website: http://www.appa.org/

BACNET
Website: http://www.bacnet.org/

BACnet Manufacturers Association
Website: http://www.bacnetassociation.org/

BOMA International
Website: http://www.boma.org/

BOMI Institute
Website: http://www.bomi-edu.org/

Blue Book of Building and Construction
Website: http://www.thebluebook.com/

Building Services Research Information Association (BSRIA)
Website: http://www.bsria.co.uk/

Centers for Disease Control and Prevention (CDC)
Website: http://www.cdc.gov/

Chartered Institution of Building Services Engineers (CIBSE)
Website: http://www.cibse.org/

Chlorine Chemistry Council
Website: http://www.c3.org/

Construction Sciences Research Foundation (CSRF)
Website: http://www.csrf.org/

Cooling Tower Institute (CTI)
Website: http://www.cti.org/

Copper Development Association
Website: http://fuelgas.copper.org/

EPRI
Website: http://www.epri.com/

ESCO INSTITUTE
Website: http://www.escoinst.com/

Edison Electric Institute (EEI)
Website: http://www.eei.org/

Energy Center of Wisconsin
Website: http://www.ecw.org/ecw/index.jsp

Engineers Dedicated to a Better Tomorrow (EDBT)
Website: http://www.dedicatedengineers.org/

Federation of European Heating and Air-Conditioning Associations (REHVA)
Website: http://www.rehva.com/

Federation of Master Builders (FMB)
Website: http://www.fmb.org.uk/

Geothermal Heat Pump Consortium (GHPC)
Website: http://www.ghpc.org/

HVAC Excellence
Website: http://www.hvacexcellence.org/

Hall of Fame for Engineering, Science and Technology (HOFEST)
Website: http://www.hofest.org/

Heating, Airconditioning & Refrigeration Distributors International (formerly NHRAW)
Website: http://www.hardinet.org/

Heating, Refrigeration, and Air Conditioning Institute of Canada (HRAI)
Website: http://www.hrai.ca/

Institute of Electrical and Electronics Engineers (IEEE)
Website: http://www.ieee.org/portal/index.jsp

Institute of Refrigeration (IR)
Website: http://www.ior.org.uk/

Instrumentation, Systems and Automation Society (ISA)
Website: http://www.isa.org/

International Association of Plumbing & Mechanical Officials (IAPMO)
Website: http://www.iapmo.org/

International Code Council (ICC)
Website: http://www.iccsafe.org/

International District Energy Association
Website: http://www.districtenergy.org/

International Facility Management Association
Website: http://www.ifma.org/

International Institute of Ammonia Refrigeration (IIAR)
Website: http://www.iiar.org/

International Organization for Standardization (ISO)
Website: http://www.iso.org/

Junior Engineering Technical Society (JETS)
Website: http://www.jets.org/

LonMark Interoperability Association
Website: http://www.lonmark.org/

Manufacturers' Survey Associates, Inc. (CMD)
Website: http://www.msaonl.com/

Mechanical Contractors Association of America (MCAA)
Website: http://www.mcaa.org/

Mexico Green Building Council
Website: http://www.mexicogbc.org/

NSSN: A National Resource for Global Standards
Website: http://www.nssn.org/

National Association of Home Builders (NAHB)
Website: http://www.nahb.org/

National Association of State Facilities Administrators (NASFA)
Website: http://www.nasfa.net/

National Board of Boiler and Pressure Vessel Inspectors (NBBI)
Website: http://www.nationalboard.org/

National Comfort Institute (NCI)
Website: http://www.ncinstitute.com/

National Electrical Contractors' Association (NECA)
Website: http://www.necanet.org/

National Fire Protection Association (NFPA)
Website: http://www.nfpa.org/

National Insulation Association (NIA)
Website: http://www.insulation.org/default.htm

National Propane Gas Association
Website: http://www.propanegas.com/

National Society of Professional Engineers (NSPE)
Website: http://www.nspe.org/

Natural Gas Supply Association
Website: http://www.ngsa.org/

Natural Gas.org
Website: http://www.naturalgas.org/

New Buildings' Institute (NBI)
Website: http://www.newbuildings.org/

Northeast Energy Efficiency Partnerships, Inc. (NEEP)
Website: http://%20www.neep.org/

Plastic Pipe and Fittings Association (PPFA)
Website: http://www.ppfahome.org/

Power Association of Northern California (PANC)
Website: http://www.panc.org/

Refrigeration Service Engineers Society (RSES)
Website: http://www.rses.org/

SCANVAC
Website: http://www.scanvac.net/

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

Society of Automotive Engineers (SAE)
Website: http://www.sae.org/servlets/index

South Carolina Association of Heating and Air-Conditioning Contractors
Website: http://www.schvac.org/website.htm

The Infrastructure Security Partnership (TISP)
Website: http://www.tisp.org/

Vereins Deutscher Ingenieure (VDI) — Association of German Engineers - Society for Building Services
Website: http://www.vdi.de/vdi/english/index.php

Vibration Isolation and Seismic Control Manufacturers Association (VISCMA)
Website: http://www.viscma.com/