Which authority typically certifies the installation of new public and private water lines?

The certification of the installation of new public and private water lines is typically handled by the approving authority, which is responsible for ensuring that all installations meet relevant regulations and standards. This authority often has the expertise required to evaluate the design, construction, and overall functionality of the water lines.

The approving authority may include representatives from various departments such as health, public works, or even fire departments, depending on local governance structures. Their role is crucial in maintaining public safety, water quality, and system reliability.

Other options may play a supportive role in the process or oversee specific aspects, but they do not typically have the comprehensive authority needed for certification. The local fire marshal may focus on fire safety code compliance, the city planning department typically handles zoning and development approvals, and the environmental agency oversees broader ecological impacts, but none of these entities usually have the direct responsibility for water line certification as the approving authority does.