The document outlines the Performance Work Statement (PWS) for a non-personal service contract focused on maintaining the High Energy X-ray Imaging System (HEXIS) at the US Army's Yuma Proving Ground. Key responsibilities of the Contractor include biannual maintenance, calibration of the M6A Linatron and associated systems, and ensuring operational efficiency. The HEXIS integrates sophisticated imaging technology, which the Contractor is expected to support through scheduled maintenance visits, remote troubleshooting, and detailed reporting of services performed. Safety and compliance with federal regulations, including personnel security checks and safety training, are emphasized throughout the PWS. The Contractor will be held to stringent quality control standards, monitored through a Quality Assurance Surveillance Plan (QASP), ensuring compliance with performance objectives and service delivery. Deliverables specified in the contract include maintenance reports, safety notifications, and training completion documentation. This contract signifies the Government's commitment to preserving advanced imaging capabilities vital for defense operations while adhering to strict safety and regulatory standards.