The Department of Defense, specifically the Air Force Research Laboratory (AFRL) at Wright-Patterson Air Force Base, is seeking vendors to provide a Box Calibrator System essential for the calibration and performance validation of Dose Rate radiation instrumentation. The system must include NIST traceable Cesium-137 sources, a quiet air compressor for cylinder actuation, and various safety features such as leaded shields and a safety interlock system to ensure operational security. This procurement is critical for maintaining high standards in radiation safety and measurement, with interested small businesses encouraged to submit their capability packages by December 2, 2024, to Mike Hornberger at michael.hornberger.1@us.af.mil.