Metrology Organization & Standards Bodies
International
- BIPM Bureau of Weights and Measurement
- CIPM International Committee of Weights and Measurement
- CGPM General Committee of Weights and Measurement
- IEC International Electrotechnical Commission
- ISO International Organization for Standardization
Regional
- AFRIMETS Intra-Africa Metrology System
- APMP Asia Pacific Metrology Programme
- COOMET Euro-Asian Cooperation of National Metrological Institutions
- EURAMET European Association of National Metrology Institutes
- GULFMET Gulf Association for Metrology
- SIM Inter-American Metrology Systemy
Accreditation Authorities
International
- IAF International Accreditation Forum, Inc.
- ILAC International Laboratory Accreditation Cooperation
- UILI International Union of Independent Laboratories
Regional
- APLAC Asia-Pacific Laboratory Accreditation Cooperation
- APAC Asia Pacific Accreditation Cooperation
- EA European Cooperation for Accreditation
- EOTC European Organization for Conformity Assessment
- IAAC Interamerican Accreditation Cooperation
- JAS-ANZ Joint Accreditation System of Australia and New Zealand
- SADCA Southern African Development Community Cooperation in Accreditation