The Department of War intends to award a sole source contract to Astrophysics, Inc. for an X-ray screening system, specifically the Model XIS-6545DV. This system is required to meet specific security, delivery, and dimensional requirements for screening carry-on and medium-sized luggage. It provides high-resolution imaging, dual-energy material discrimination, and TSA/ECAC-compliant detection capabilities. The government considers this model the only one that meets its minimum performance, safety, operational standards, and size requirements.