The document discusses the roles and responsibilities of Clinical Skills Trainers (CSTs) and Ultrasound Leads in abdominal aortic aneurysm screening programs. CSTs are responsible for training screening technicians, monitoring image quality, reviewing atypical findings, and equipment maintenance. Ultrasound Leads monitor staff accreditation and image quality assurance, review incidental findings, and perform equipment maintenance. Both CSTs and Ultrasound Leads assess trends in screening outcomes, provide quarterly feedback to technicians, and support technicians' professional development. The document explores how data systems and feedback can help CSTs and Ultrasound Leads fulfill these responsibilities.