Revalidation is a five-year process in the UK that aims to bring all doctors into a clinical governance system, help identify problems earlier, encourage self-reflection, and contribute to safer, higher quality patient care. So far, over 118,000 doctors have been revalidated. Early evidence suggests revalidation is increasing appraisal rates and identification of concerns, while 24,795 doctors have given up their licenses. Responsible Officers report revalidation is central to quality improvement and allows better understanding of doctors' practices. The future of revalidation may see it more integrated with team performance and use more objective data linked to specialist expectations.