The document outlines a Limited Source Justification for acquisitions under the Simplified Acquisition Threshold, specifically for the service and maintenance of a Rad Source X-Ray Cabinet. This justification is based on proprietary rights, as the X-Ray Cabinet contains unique Rad Source NDT imaging software and hardware essential for its safe and compliant operation. The cabinet is custom-manufactured and used for inspecting components to validate welders' skills, reducing boat availability impact by providing instant feedback. Due to the proprietary nature of the software and hardware, Rad Source NDT is the only viable source for service and maintenance, as other companies lack access to these critical components. The document emphasizes that no other equipment can perform this function, making Rad Source the sole responsible source to ensure compliance with federal law and maintain operational readiness. It also includes certifications and approvals from technical and contracting officers.