Quality control (QC) in manufacturing is a process designed to ensure that products and components meet specified standards of quality before they are released for production or delivery. This involves inspecting, testing, and monitoring materials, parts, and finished products for defects, inconsistencies, or deviations from design specifications. QC can be implemented through various methods, including visual inspection, automated testing, and statistical process control (SPC). A good QC system ensures that products perform as expected, minimizing the risk of defects, rework, or customer complaints. For example, a manufacturer of automotive parts might use QC to check the dimensions and materials of engine components, ensuring they meet strict tolerances to guarantee safety and reliability in the final vehicle assembly. Quality control enhances product consistency, reduces waste, and helps maintain customer satisfaction.