Social Sciences

 Biological Sciences

For detailed information about the purpose and management of these committees, consult the
U.S. National Committees: An Introductory Guide.

• Interrnational Institute for Applied Systems Analysis (IIASA)
• Pacific Science Association (PSA)
  

ICSU Scientific Committees & Programs

• DIVERSITAS: An Integrated Program of Biodiversity Science
  

Earth Sciences

• International Union of Geodesy and Geophysics (IUGG)
• International Union of Geological Sciences (IUGS)
• International Union of Soil Sciences (SS)
• International Union for Quaternary Research (INQUA)

Math, Physical & Engineering Sciences

• International Mathematical Union (IMU)
• International Commission on Mathematical Instruction (ICMI)
      (Commission of IMU)
• International Astronomical Union (IAU)
• International Union of Crystallography (IUCr)
• International Union of Pure and Applied Physics (IUPAP)
• International Commission on Optics (ICO)
      (Affiliated Commission of IUPAP)
• International Union of Pure and Applied Chemistry (IUPAC)
• Union Radio Scientifique Internationale (URSI)
• International Union of Theoretical and Applied Mechanics (IUTAM)

Social Sciences

• International Union of Psychological Science (IUPsyS)
  

Biological Sciences

• International Union of Biochemistry and Molecular Biology (IUBMB)
• International Union of Biological Sciences (IUBS)
• International Union of Pure and Applied Biophysics (IUPAB)
• International Union of Physiological Sciences (IUPS)
• International Union of Microbiological Societies (IUMS)
• DIVERSITAS: An Integrated Program of Biodiversity Science