Acceptance sampling is a statistical quality control technique widely used in manufacturing, service industries, and other sectors to determine whether to accept or reject a batch (or lot) of products based on a sample. Rather than inspecting every item in a batch, acceptance sampling involves taking a random sample and making decisions based on the number of defects or non-conforming items found. This method saves time and costs, especially in situations where inspecting each item is impractical or destructive testing is involved. This article provides an in-depth exploration of acceptance sampling, its various plans, benefits, limitations, and its significance in quality control systems like ISO 9001.