Which code specifies installations related to the protection of potable water systems?

The International Plumbing Code is the correct choice for specifying installations related to the protection of potable water systems. This code is designed to safeguard public health by ensuring that potable water systems are constructed, installed, and maintained in ways that prevent contamination. It covers aspects such as water quality standards, methods of piping installation, and materials that can be used in potable water systems.

The code incorporates regulations that address not just the physical aspects of water delivery but also the prevention of backflow and cross-connections, which are crucial in maintaining the integrity of drinking water supplies. By following the International Plumbing Code, installers and inspectors can ensure that the plumbing systems comply with safety standards, reducing the risk of waterborne diseases and other health hazards associated with contaminated water.

The other choices focus on different areas of building and safety codes and do not address the specific guidelines for the protection of potable water systems. The Uniform Mechanical Code emphasizes mechanical systems rather than plumbing, the National Electric Code is focused on electrical installations, and the International Fire Code deals with fire safety protocols, leaving the International Plumbing Code as the authority for plumbing and potable water system regulations.