What is commonly established to notify utilities of planned excavation?

The correct choice is one-call center, as these organizations are specifically designed to facilitate communication between excavators and utility companies. When contractors or individuals plan to dig, they are required to notify the one-call center, which then alerts the relevant utility companies about the planned excavation. This process is crucial to ensure the safety of workers and prevent damage to existing utility lines, such as gas, water, electricity, and telecommunications.

This notification system helps in managing and coordinating utility marking and protection, which is vital for preventing accidents and service interruptions. The one-call center serves as a central hub for communication, streamlining the process and ensuring that all necessary parties are informed in a timely manner before any excavation occurs.

In contrast, utility alert systems, public notice forms, and permit offices serve different purposes and do not specifically focus on the coordination of excavation notifications in the same way that a one-call center does. Utility alert systems may notify service providers about other issues, public notice forms are generally used for broader community announcements, and permit offices handle the granting of permissions for construction, but they are not the direct point of contact for excavation notifications.