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Washington 811 rules

In Washington you call Washington 811 (Dig Safe Washington / one-number locator service): not less than 2 full business days before the scheduled start. Ticket life: marks expire 45 calendar days after the notice.

Advance notice before digging
Not less than 2 full business days before the scheduled start.
Farthest ahead you can call
10 full business days.
How long the ticket or marks last
Marks expire 45 calendar days after the notice.
Tolerance zone (hand dig inside it)
24 inches from the outside edges of both sides of the facility (reasonable accuracy).
White lining (premarking)
Yes.
The law
RCW 19.122 (19.122.020, 19.122.030).

Good to know: White marking is required, with white pin flags where paint won't work.

Call 811 from anywhere in Washington to reach Washington 811 (Dig Safe Washington / one-number locator service), or file online at digsafewashington.com.

Running several digs at once?

TrackOver keeps each ticket number, markout date and expiry on the job it belongs to, and warns before a ticket runs out, so the crew in the hole isn't digging on a dead ticket.

811 ticket trackingFind dig work on the board

Where this comes from

Checked September 24, 2026 against the state's own statute or rule text. Rules change; confirm with the center before a big job.

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