811 In Your State


Explore damage prevention information, local contacts and rules for safe digging in Nevada.

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USA North 811
811 or 1-800-642-2444

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4005 Port Chicago Hwy
Suite 100
Concord, CA 94520-1232


Advanced Notice: 2 working days, but not more than 28 calendar days
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: 28 calendar days or when marks are no longer reasonably visible
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.