Self inspections are performed routinely and on special occasions to evaluate a manufacturer's compliance with Good Manufacturing Practices (GMP) and detect any shortcomings. The inspections are designed to cover all aspects of production and quality control and recommend corrective actions. They should be led by an experienced person, documented, and include an effective follow-up program to ensure corrective actions are completed. Quality audits supplement self-inspections and can be internal, external, or regulatory to further improve quality systems.