The Common Ground Alliance (CGA) is a member-driven association dedicated to ensuring public safety, environmental protection and the integrity of utility services by promoting effective damage prevention practices. In recent years, the association has established itself as the leading organization in the industry to reduce damages to all underground facilities in North America through shared responsibility among all stakeholders.

In promoting a spirit of shared responsibility, the CGA welcomes all stakeholders who would like to be a part of the identification and promotion of best practices that lead to a reduction in damages.

Any best practices, endorsed by the CGA come with consensus support from experts representing the following stakeholder groups:

  • Excavators
  • Locators
  • Road Builders
  • Electric
  • Telecommunications
  • Oil and Gas
  • Railroad
  • Water and Sewer
  • One Call
  • Public Works,
  • Equipment
  • State Regulators
  • Insurance
  • Emergency Services
  • Engineering/Design

Visit the CGA website.


Launched in late 2013, the CGA Vault website is an online damage prevention technology site that serves as a tool to easily locate and review damage prevention technologies. It provides a search by technology category, CGA best practice, related root causes, and stakeholder group.

Visit the CGA VAULT website.

Call 811

In 2007, the CGA launched the 811 campaign. Along with the 811 number, the CGA and its 1,400 members and sponsors launched the national “Call Before You Dig” campaign to increase public awareness about calling for locates before digging.

The campaign stresses the importance of using 811, having utility lines marked before digging, thereby protecting America’s vast underground infrastructure of pipelines, conduits, wires and cables.

Visit the Call 811 website.