National Council on Radiation Protection and Measurements
- NCRP is a U.S. organization that seeks to formulate and disseminate information, guidance and recommendations on radiation protection and measurements which represent the consensus of leading scientific thinking.
- http://www.ncrponline.org

Swedish Radiation Protection Institute
- Government authority with the task of protecting people and the environment from the harmful effects of radiation. News and information on public and worker radiation exposure.
- http://www.ssi.se/english/lank_symbol_Eng.html

OECD Nuclear Energy Agency Radiation Protection Programme
- The NEA's goal in this area is to assist member countries in the regulation and application of the radiation protection system by identifying and addressing conceptual, scientific, policy, operational, and societal issues in a timely and prospective fashi
- http://www.nea.fr/html/rp/

RADSAFE
- RADSAFE is a UK consortium of organisations that have come together to offer mutual assistance in the event of a transport accident involving radioactive materials belonging to a RADSAFE member.
- http://www.radsafe.org.uk

American Academy of Health Physics
- Provides standards of communication, ethics, work practices, and knowledge for health physicists, and provides recognition as a Certified Health Physicist (CHP).
- http://hps1.org/aahp/

Nuclear Policy Research Institute
- Founded by Dr. Helen Caldicott 2002, produces public education campaigns in U.S. media about the health dangers of nuclear weapons, nuclear war, nuclear power programs and nuclear policies.
- http://www.nuclearpolicy.org/

Radiation Research Society
- Encourages advancement of radiation research in all areas of the natural sciences. Offers publications, membership information, jobs, funding and fellowship, newsletters, and graduate education information.
- http://www.radres.org/

International Atomic Energy Agency
- The IAEA is the world's central intergovernmental forum for scientific and technical co-operation in the nuclear field. Provides news and resources.
- http://www.iaea.org/