Final answer:
When calling Blue Stakes, you must wait for a specified time before digging to ensure safety and prevent damages.
Step-by-step explanation:
When calling Blue Stakes, you must wait for certain time before digging to ensure safety and prevent any damages. The specific time you need to wait can vary depending on your location, but typically it is 48 hours. This waiting period allows Blue Stakes, which is a service that marks the location of underground utilities, to send a technician to your site and mark any utility lines that may be present. By waiting for the designated time, you can avoid accidentally hitting or damaging any utility lines while digging, which can be dangerous and costly.