Okla. Admin. Code § 165:35-43-2
The following words and terms, when used in this Sub-chapter, shall have the following meanings, unless the context clearly indicates otherwise:
"Interconnection" means two or more electric systems having a common transmission tie that permits a flow of energy between them. An Interconnection includes a common transmission tie between a Transmission Line and generation facilities, between a Transmission Line and load facilities, or between a Transmission Line and one or more other Transmission Line(s).
"NERC" means the North American Electric Reliability Corporation.
"SPP" means the Southwest Power Pool, Inc.
"Transmission Line" means a set of conductors, insulators, supporting structures, and associated equipment used to move power at 60 kilovolts (kV) or above.
"Transmission Only Utility" or"TOU" means an entity that builds, constructs, owns, operates, controls, manages, or maintains Transmission Line(s) within the State of Oklahoma and provides no retail service subject to the rate jurisdiction under 17 O.S. Section 151 et seq. by this Commission. This shall not include Utilities operated by municipalities, governmental bodies, or unregulated cooperatives.
Okla. Admin. Code § 165:35-43-2