​This presentation will explore how the Nevada National Security Sites (NNSS) successfully implemented the OneResponder system into its Emergency Operations Center (EOC) Cadre Management and Training program. OneResponder is a comprehensive, web-based platform designed to manage and track the training, qualifications, and certifications of emergency management personnel. It ensures that all staff members meet standardized competency levels, providing an easily accessible and centralized system to monitor their readiness across multiple disciplines and emergency scenarios. By integrating OneResponder, we have streamlined training, standardized qualifications, and enhanced readiness, enabling our EOC personnel to better respond to emergencies. This session will showcase how the program has improved operational efficiency and preparedness, while also providing a roadmap for other DOE and NNSA entities to adopt similar frameworks. The presentation aligns with the symposium's theme of learning from the past and preparing for the future, by sharing both the strategies and lessons learned from our experience, and how OneResponder can be leveraged across the DOE Complex to enhance emergency preparedness nationwide.​