The Uniformed Services University of the Health Sciences (USUHS) intends to award a sole-source contract to Hopewell Designs Inc. for the preventative maintenance of the Armed Forces Radiobiology Research Institute’s (AFRRI) GC60 Irradiator, which utilizes Cobalt-60 and Cesium-137 radioactive sources. This maintenance is critical for ensuring the effective training of health professionals dedicated to military service, as only Hopewell Designs Inc. is licensed and equipped to service the proprietary hardware and software associated with the GC60, in compliance with Nuclear Regulatory Commission (NRC) regulations. While the contract is intended to be sole-source, USUHS invites other vendors to submit evidence of their capability to meet the requirements, potentially allowing for competitive procurement. Interested parties can reach out to Jennifer Wilsanck at jennifer.wilsnack@usuhs.edu for further information.