Within IAMAS the main research work is carried out, coordinated and communicated in ten International Commissions (ICs), which are in alphabetical order:

	The International Commission on Atmospheric Chemistry and Global Pollution (iCACGP)
	The International Commission on Atmospheric Electricity (ICAE)
	The International Commission on Climate (ICCL)
	The International Commission on Clouds and Precipitation (ICCP), including the Committee on Nucleation & Atmospheric Aerosols (CNAA)
	The International Commission on Dynamical Meteorology (ICDM)
	The International Commission on the Middle Atmosphere (ICMA)
	The International Commission on Planetary Atmospheres and their Evolution (ICPAE)
	The International Commission on Polar Meteorology (ICPM)
	International Commission on Tropical Meteorology (ICTM*)
	The International Ozone Commission (IO3C)
	The International Radiation Commission (IRC)