The document outlines a five-step approach to Corrective and Preventive Actions (CAPA) in compliance with FDA regulations, detailing the processes for identifying root causes, implementing corrective actions, and verifying effectiveness. It emphasizes the importance of thorough investigations into nonconformities and provides examples of citations related to failures in CAPA implementation. Additionally, it highlights common difficulties companies face in executing CAPA processes and the need for systematic procedures to address quality issues.