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
C6: Commission on Biological Physics
C8: Commission on Semiconductors
C9: Commission on Magnetism
C11: Commission on Particles and Fields
C12: Commission on Nuclear Physics
C13: Commission on Physics for Development
C14: Commission on Physics Education
C15: Commission on Atomic, Molecular, and Optical Physics
C16: Commission on Plasma Physics
C17: Commission on Laser Physics and Photonics
C18: Commission on Mathematical Physics
C19: Commission on Astrophysics
C20: Commission on Computational Physics
AC.2: International Commission on General Relativity and Gravitation
AC.3: International Commission for Acoustics (ICA)
AC.4: International Commission on Medical Physics
C9: Commission on Magnetism
C11: Commission on Particles and Fields
C12: Commission on Nuclear Physics
C17: Commission on Laser Physics and Photonics
C14: Commission on Physics Education
C15: Commission on Atomic, Molecular, and Optical Physics
AC.2: International Commission on General Relativity and Gravitation