South African Association of Physicists in Medicine and Biology - SAAPMB is an association comprised of individuals and societies interested in the interaction of radiation with the human body and related physical phenomena. Provides news and resources.
Health Physics Society - Professional organization dedicated to development, dissemination, and application of both the scientific knowledge of, and the practical means for, radiation protection.
International Radiation Protection Association - For people engaged in radiation protection activities in all parts of the world. Website includes organization information, and professional training materials on a wide range of topics in radiological protection and nuclear medicine.
International Commission on Non-Ionizing Radiation Protection - ICNIRP is an independent scientific organization, whose aims are to provide guidance and advice on the health hazards of non-ionizing radiation exposure. Provides information on publications, activities and links.
Canadian Radiation Protection Association - The CRPA is a professional society that supports the development and implementation of radiation safety programs in all areas of industry, medicine, research and the environment.