PO Box 1015
Bismarck, ND 58502
24 / 7
48 hours, excluding weekends and holidays
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.
Marks Valid: The ticket is valid for 21 calendar days from the start time stated on the ticket.
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.