3.26 One Call Membership

Facility Owner

Practice Statement:22

Any entity that furnishes or transports products or services to a third party for its use or consumption by means of an underground facility or furnishes or transports products or services for its own internal use by means of an underground facility that occupies or crosses a right-of-way or utility easement is a member of a one call center.

Practice Description:

Underground damage prevention begins with a notice of intent to excavate submitted by an excavator to the appropriate one call center. The process of notification depends on all affected member facility operators being notified of intent to excavate through the regional one call center. Membership in the one call center by underground facility operators ensures that potential conflicts with existing facilities that may be encountered during excavation activities are identified by using a single regional point of contact. Operators of the aforementioned underground facilities who fail to become members of their local one call center risk public safety and damage to their facilities, and endanger excavators who may come into contact with these aforementioned underground facilities. The following are examples of an underground facility that would probably not require one call center membership:

  • The internal use of owned underground facilities to provide safe operations in controlled rights of ways, such as railroad operating corridors that facilitate the transportation of freight or passengers.
  • The internal use of an entity’s underground facilities by that entity solely on its own property. (Note: aboveground use of one’s rights of way or property, such as the transportation of freight or passengers by rail, is not within the purview of the CGA Best Practices.)


  • State One Call Laws, 1999 Common Ground Study


One Call Center One Call Center

Facility Owner Facility Owner

Excavator Excavator

Locator Locator

Project Owner Project Owner

Designer Designer