The Inquiry Identification Number for an Underground Service Alert (USA) is viable for how many days?

The Inquiry Identification Number for an Underground Service Alert (USA) remains valid for 28 days. This validity period is important for ensuring that the dig notification is recognized and honored throughout its duration, allowing sufficient time for utility operators to mark their underground facilities at the proposed dig site.

In practice, this means that once a request is made, the alert remains active for this 28-day window, offering protection for excavators and helping to prevent damage to underground utilities. After this period, the identification number must be renewed if further excavation is planned, ensuring ongoing communication and safety between excavators and utility providers. This process effectively supports efficient excavation practices while minimizing the risk of accidents related to underground utilities.