16 U.S.C. § 825s–3: Southwestern area sale at uniform systemwide rates of electric power over transmission lines constructed with appropriated funds or used under contractual arrangements

Power and energy marketed by the Southwestern Power Administration pursuant to section 825s of this title, shall be sold at uniform systemwide rates, without discrimination between customers to whom the Southwestern Power Administration delivers such power and energy by means of transmission lines or facilities constructed with appropriated funds, and customers to whom the Southwestern Power Administration delivers such power and energy by means of transmission lines or facilities, the use of which is acquired by lease, wheeling, or other contractual arrangements.