Environmental Health & Safety

University of Colorado Boulder


  • Unsealed Radioisotope Users Refresher

    Intended for


    Proctored by
    Required frequency

    Once every 3 years



Unsealed Radioisotope Users Refresher Overview

All users of unsealed radioactive materials at the University of Colorado must complete this Radiation Safety Refresher Training every three years. New users must complete the Unsealed Radioisotope Users Instruction before taking this refresher.

Feel free to use the Radiation Safety Handbook and waste information on the main page to aid you in taking the quiz.

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