• AFNOR — Association Francaise de Normalisation
• ANSI — American National Standards Institute
• ASHRAE — American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc
• BSI – British Standards
• CEN — The European Committee for Standardization
• CENELEC — The European Committee for Electrotechnical Standardization
• CSA International — Canadian Standards Association
• DIN — Deutches Institut für Normunge.V (Germany)
• ESMA¹ — Emirates Authority for Standardization and Meteorology (United Arab Emirates)
• IEC — International Electrotechnical Commission
• ISO — International Organization for Standardization
• JIS — Japanese Industrial Standards
• NSSN — National Standards Systems Network
• SASO¹ — Saudi Arabian Standards Organization
• SES — Standards Engineering Society
• UNEP — United Nations Environment Programme

¹ Has cooperation agreement with AHRI