History

The Oklahoma One-Call System, Inc. (callokie) is a non-profit corporation, incorporated in the State of Oklahoma in 1979. It was formed for the purpose of preventing damage to underground facilities. Thirty-seven companies originally joined to fund a statewide one-call notification center.

On April 22, 1981, the Governor signed into law an act known as the Oklahoma Underground Facilities Damage Prevention Act. The legislation was sponsored by Oklahoma Representatives Cal Hobson, Lexington and John Monks, Muskogee. The law was effective January 1, 1982. The act provided that (1) owners and operators of underground facilities must register, through a notification system, and (2) all excavators must give notice to such underground operators at the notification system prior to excavation.