Best Practices Version 17.0

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Chapter 3

3.5 Single Toll-free Statewide Telephone Number with Nationwide Access

Practice Statement:

All one call centers have a single toll free statewide telephone number with nationwide access.

Practice Description:

There is only one statewide toll-free telephone number for one call centers to receive locate requests. This number has nationwide access, meaning that a caller can reach the center from anywhere in the country.

References:

  • One Call Systems International Voluntary Recognition Program

  • Existing operating practices from various states’ one call centers

  • 49 CFR Part 198

  • NTSB Safety Study (NTSB/SS-97/01; PB97-917003)

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