Renewed Joint Declaration reaffirms importance of metrological traceability
Metrological traceability is fundamental to ensuring confidence in measurement results and to supporting the core missions of the Quality Infrastructure.
Recognizing its importance, the BIPM, the Global Accreditation Cooperation Incorporated (Global ACI), the International Organization for Standardization (ISO), and the International Organization of Legal Metrology (OIML) developed the Joint Declaration on Metrological Traceability, encouraging their members and all relevant stakeholders to embrace its recommendations and promote its principles and practices.
Following the transition from the International Laboratory Accreditation Cooperation (ILAC) to Global ACI, the Joint BIPM-Global ACI-ISO-OIML Declaration on Metrological Traceability was re-signed on 4 November 2026, at the Global Quality Infrastructure (QI) Forum held at the UNIDO headquarters in Vienna, Austria.
Photo: Following the signing of the agreement on 4 November 2026 (from left to right): Roswitha Franz, Head of Planning and Operations at ISO; Annette Koo, Director of the BIPM; Brahim Houla, Global ACI Chair; and Anthony Donnellan, BIML Director. Photo credit: © UNIDO 2026.
Context
The Joint Declaration on Metrological Traceability updates and replaces the previous document signed in 2018 by the BIPM, ILAC, ISO and OIML.
First established in 2011, the Joint Declaration reflects the long-standing cooperation of four organizations with complementary roles in the global quality infrastructure. Its renewal reaffirms their shared commitment to metrological traceability and provides a basis for continued collaboration in supporting quality, confidence and international cooperation.
Read the Joint BIPM-Global ACI-ISO-OIML Declaration on Metrological Traceability