CIAAW members
The current list of CIAAW members is in effect for 2022-2023. The Commission can be contacted via its Secretary by email to secretariat (at) ciaaw.org.
The University of Leoben (Austria)
Federal Institute for Materials Research and Testing
(Germany)
LGC Limited
(United Kingdom)
University of Groningen (The Netherlands)
National Institute of Standards and Technology (USA)
National Institute of Metrology (China)
International Atomic
Energy Agency (Austria)
National Research Council Canada (Canada)
The University of Leoben
(Austria)
University of Tokyo
(Japan)
United States Geological Survey (USA)
Brookhaven National Laboratory (USA)
Chinese Academy of Geological Sciences (China)
The Commission chooses its own members according to the IUPAC Bylaws (Section 3.3) and the election results are formally approved by the IUPAC Bureau or Executive Committee. National Representatives are proposed to CIAAW by the IUPAC National Adhering Organizations and are subject to approval by CIAAW and by the IUPAC Bureau.

CIAAW
The 2021 Atomic Weights Commission biennial meeting (virtual) (top left to bottom right) Johanna Irrgeher, Thomas Prohaska (Secretary), Juris Meija (Chair), Jochen Vogl, Federica Camin, Manfred Gröning, Heiko Moossen, Harro A.J. Meijer, Yoshio Takahashi, Shigekazu Yoneda, Antonio Possolo, Philip J.H. Dunn, Thomas Walczyk, Masaharu Tanimizu, Martin Rosner, Norman E. Holden, Ryan Ickert, Michael Wieser, Jun Wang, Tyler B. Coplen, Tetsuya Yokoyama, John-Karl Böhlke