The Oklahoma One-Call System, Inc. (OKIE811) is a non-profit 501(c)6 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. 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.