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DOD Launches Tomodachi Registry Website

The Department of Defense (DoD) launched the Operation Tomodachi Registry website Sept. 5.

The website provides location-based radiation dose estimate reports for adults and children comprising the DoD-affiliated population on or near mainland Japan following the Great East Japan Earthquake and Tsunami of March 11, 2011.

DoD-affiliated members who were in Japan during the nuclear reactor crisis, medical providers, and the public at large will be able to download location-based radiation dose estimate reports from the website. These reports include medical interpretations and provide comparisons of the Operation Tomodachi radiation doses with more commonly experienced radiation doses.


The website also includes information on the event, DoD's response to the crisis, and answers to frequently asked questions. By the end of the calendar year, individuals in the registry may request a dose assessment that is individually tailored for them, based on more detailed location data that they can provide using the "Contact Us" function on the Operation Tomodachi Registry website.

After extensive environmental monitoring and analysis, it has been determined that none of the nearly 70,000 members of the DoD-affiliated population (service members, DoD civilian employees and contractors, and family members of service members and civilian employees) who were on or near the mainland of Japan between March 12 and May 11, 2011, are known to have been exposed to radiation at levels associated with adverse medical conditions.

The Operation Tomodachi Registry, which will be housed in a secure database containing the names, locations, and radiation doses for all members of the DoD-affiliated population, will be completed by Dec. 31, 2012. Personally identified information will be omitted from this website.

The registry can be found online at