Plumbing standards are guidelines and regulations that ensure the safety, reliability, and efficiency of plumbing systems. These standards cover various aspects, including the materials used, installation practices, and maintenance procedures. They help protect public health by preventing issues like leaks, contamination, and improper drainage. Organizations such as the American National Standards Institute (ANSI) and the International Association of Plumbing and Mechanical Officials (IAPMO) develop and publish these standards. Compliance with plumbing standards is often required by local building codes, ensuring that plumbing work meets minimum safety and performance criteria for both residential and commercial properties.