Washington, D.C.

Explore damage prevention information, local contacts and rules for safe digging in Washington, D.C.

One Call Centers

811 or


7223 Parkway Drive
Suite 100
Hanover, DC 21076


M - F 0700 - 1700 Emergency Ticket: 24/7

Advance Notice:

48 business hours up to 10 business days

Marks Valid:

15 business days



Legislative Information

yes Mandatory Membership
yes Civil Penalties
yes Tolerance Zone 18"
yes Hand Dig Clause
no Mandatory Premark
yes Emergency Clause
yes Positive Response
na Depth Exemption

Regional Partners

Maryland/DC Subscriber & Damage Prevention Committee

Geographic Location:

Maryland & District of Columbia


Matt Ruddo
Maryland/DC Subscriber & Damage Prevention Committee

Partner Since:

September 2009


Utility members, excavators, locators, regulatory agencies and call center personnel working together as a team to promote damage prevention through communication, safe digging practices and education.