QICA (Quality Infrastructure Council for the Americas)
APMP (Asia Pacific Metrology Programme)
COOMET (Euro-Asian Cooperation of National Metrological Institutions)
SADCMET (Southern African Development Community Cooperation in Measurement Traceability)
EURAMET (European Collaboration in Measurement Standards)
AFRIMETS (Intra-Africa Metrology System)
GULFMET (Gulf Association for Metrology)
BIPM (Bureau International des Poids et Mesures)
OIML (International Organization of Legal Metrology)
PTB (Physikalish-Technische Bundesanstalt)
IAAC (Inter American Accreditation Cooperation)
COPANT (Pan American Standards Commission)
NSCLi (National Conference of Standards Laboratories International)
