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Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted. The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov. Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

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Authorized User Review

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The NIH and the Division of Radiation Safety are dedicated to maintaining the utmost security of radioactive material at all times to prevent the intentional or unintentional misuse of radioactive material. The Authorized User Review is an online, untimed, self-study course​ reviewing the NIH Radioactive Material Security Policy​​. The course is followed by a 2-3 hour practical exercise and exam component​​ which is required to obtain final approval by the Radiation Safety Committee to become an Authorized User.​​​​

Contact the Training Coordinator at (301) 496-2255 or drstraining@mail.nih.gov to learn the dates of the next scheduled Practicum and Exam. 
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