3.2 Specifically Defined Geopolitical Service Area with No Overlap
The one call centers serving a specifically defined geopolitical area are structured so that an excavator need only make one call, and a facility owner/operator need only belong to a single one call center.
One call programs are designed to promote ease of use for members (facility owners/operators) and excavators. Although this ease of use is enhanced when a one call center serves a specifically defined geopolitical area that does not overlap with the service area of another one call center, non-overlapping service areas are not essential. There are three requirements that a one call program must meet to be considered as having implemented this best practice:
- The program permits an excavator to use a single point of contact to submit and follow up on a notice of intent to excavate and to notify affected facility owners/operators.
- The program permits a facility owner/operator to join a single one call center and receive all appropriate notices.
- The program is designed so that all pertinent information is shared among one call centers in the event more than one exists.
One Call Systems International Voluntary Recognition Program
Existing operating practices from various states’ one call centers
NTSB Safety Study (NTSB/SS-97/01; PB97-917003)