Sec. 54.001. CERTIFICATE REQUIRED. A person may not provide local exchange telephone service, basic local telecommunications service, or switched access service unless the person obtains a: (1) certificate of convenience and necessity; (2) certificate of operating authority; or (3) service provider certificate of operating authority. Acts 1997, 75th Leg., ch. 166, Sec. 1, eff. Sept. 1, 1997.