C2: Commission on Symbols, Units, Nomenclature, Atomic Masses & Fundamental Constants
C3: Commission on Statistical Physics
C4: Commission on Astroparticle Physics
C5: Commission on Low Temperature Physics
C8: Commission on Semiconductors
C9: Commission on Magnetism
C10: Commission on Structure and Dynamics of Condensed Matter
C11: Commission on Particles and Fields
C12: Commission on Nuclear Physics
C13: Commission on Physics for Development
C15: Commission on Atomic, Molecular, and Optical Physics
C16: Commission on Plasma Physics
C19: Commission on Astrophysics
AC.2: International Society on General Relativity and Gravitation (ISGRG)
AC.1: International Commission on Optics
AC3: International Commission for Acoustics, ICA
C9: Commission on Magnetism
C10: Commission on Structure and Dynamics of Condensed Matter