Corrective Action (CA) is a process used to identify and address defects or non-conformities in a product, service, or system. It’s an essential part of any quality assurance program, as it allows organizations to find out where processes are malfunctioning, fix the problem before it can cause further damage, and prevent similar issues from occurring in the future. CA should be comprehensive; it should ensure thorough investigations, document detailed results and findings, and create effective corrective measures and solutions. Ultimately, CA should serve as the last line of defense against systemic failures in quality management.