(a) Rate on file. A local distribution company that has a rate on file with an appropriate state regulatory agency for city-gate transportation services must determine its rates and charges for transportation of emergency natural gas in accordance with Sec. 284.123 of this chapter.
(b) Rate not on file. A local distribution company that does not have a rate on file with an appropriate state regulatory agency for city-gate transportation services must determine its rates and charges for transportation of emergency natural gas (per unit volume of emergency natural gas transported) in accordance with Sec. 284.224(e)(2)(ii) of this chapter.