What is one of the primary roles of plumbing codes?

One of the primary roles of plumbing codes is to ensure safety and health standards. Plumbing codes are established to protect public health and safety by regulating the design, installation, and maintenance of plumbing systems. These codes help prevent issues such as contamination of drinking water, ensuring that waste is properly disposed of, and minimizing risks of leaks or plumbing failures that could lead to property damage or health hazards. By adhering to these codes, plumbers ensure that installations meet minimum safety requirements and function effectively, providing a safe environment for both users and the community at large.

While the limitation of certain materials, aesthetic considerations, and cost reduction can be aspects of plumbing practices, they are not the primary focus of plumbing codes which are fundamentally centered on health and safety.