Authorized User-Eligibility: Changes Afoot in the Designation By Paul E. Wallner, DO, ABR Associate Executive Director for Radiation Oncology; and David Laszakovits, MBA, Director of Communications 2022;15(3):9 In 2004, following an agreement reached with the U.S. Nuclear Regulatory Commission (NRC), the ABR began to add the designation “Authorized User-Eligible” (AU-E) to Initial Certification certificates of…