Final answer:
The one-call inspector/locator has to mark the excavation site before digging can begin within 3 business days.
Step-by-step explanation:
The correct time period that the one-call inspector/locator has to mark the excavation site before digging can begin is 3 business days.
When a digging project is planned, it is crucial to call a one-call utility protection service. They will then notify all utility companies in the area to send a representative to the excavation site to mark any underground utility lines that may be present. By law, these companies have 3 business days to complete the marking process.
For example, if you plan to dig on a Monday, you should call the one-call service by the previous Wednesday, allowing them sufficient time to schedule and complete the marking before your project begins on Monday.