3.15 One Call Center Accepts Notifications from Designers

One Call Center

Practice Statement:

The one call center accepts design requests and has the ability to process them as designated by the facility owners/operators.

Practice Description:

To facilitate damage prevention, project designers have a need for access to facility location information from facility owners/operators. If a design request is received, the one call center provides a listing of facility owners/operators directly to the designer. Once the list is identified, the one call center processes the request as designated by each facility owner/operator.


  • Existing operating practices from various states’ one call centers
  • NTSB Safety Study (NTSB/SS-97/01; PB97-917003)


One Call Center One Call Center

Facility Owner Facility Owner

Excavator Excavator

Locator Locator

Project Owner Project Owner

Designer Designer